รวมอาการเสียและการแก้ไขเครื่อง CNC ที่ใช้ CONTROL MITSUBISHI

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1. List of Alarms

1.1 Operation Alarms

(The bold characters are the messages displayed on the screen.)

M01 OPERATION ERROR		Alarms occurring due to incorrect operation by the operator during NC operation and those by machine trouble are displayed.
Error No.	Details		Remedy
0001	DOG OVERRUN (Dog overrun) When returning to the reference point‚ the near-point detection limit switch did not stop over the dog‚ but overran the dog.		• Increase the length of the near-point dog. • Reduce the reference point return speed.
0002	Z-AX NO CRSS One of the axes did not pass the Z-phase during the initial reference point return after the power was turned ON.		• Move the detector one rotation or more in the opposite direction of the reference point‚ and repeat reference point return.
0003	INVALID RET (Invalid return) When manually returning to the reference point‚ the return direction differs from the axis movement direction selected with the AXIS SELECTION key.		• The selection of the AXIS SELECTION key’s +/– direction is incorrect. The error is canceled by feeding the axis in the correct direction.
0004	EXT INTRLK (External interlock) The external interlock function has activated (the input signal is "OFF") and one of the axes has entered the interlock state.		• As the interlock function has activated‚ release it before resuming operation. • Check the sequence on the machine side. • Check for broken wires in the interlock signal line.
0005	INTRL INTRLK (Internal interlock) The internal interlock state has been entered. The absolute position detector axis has been removed. A command for the manual/automatic simultaneous valid axis was issued from the automatic mode.		• The servo OFF function is valid‚ so release it first. • An axis that can be removed has been issued‚ so perform the correct operations. • The command is issued in the same direction as the direction where manual skip turned ON‚ so perform the correct operations. • During the manual/automatic simul- taneous mode‚ the axis commanded in the automatic mode became the manual operation axis. Turn OFF the manual/ automatic valid signal for the commanded axis. • Turn ON the power again‚ and perform absolute position initialization.

Error No.	Details	Remedy
0006	H/W STRK END (H/W stroke end) The stroke end function has activated (the input signal is "OFF") and one of the axes is in the stroke end status.	• Move the machine manually. • Check for broken wires in the stroke end signal wire. • Check for trouble in the limit switch.
0007	S/W STRK END (S/W stroke end) The stored stroke limit I‚ II‚ IIB or IB function has activated.	• Move it manually. • If the stored stroke limit in the parameter is incorrectly set‚ correct it.
0008	Chuck/tail-stock barrier stroke end axis found The chuck/tail-stock barrier function turned ON‚ and an axis entered the stroke end state.	• Reset the alarm with reset‚ and move the machine in the reverse direction.
0009	Reference point return number illegal Return to the No. 2 reference point was performed before return to the No. 1 reference point was completed.	• Execute No. 1 reference point return.
0019	Sensor signal illegal ON The sensor signal was already ON when the tool measurement mode (TLM) signal was validated. The sensor signal turned ON when there was no axis movement after the tool measurement mode (TLM) signal was validated. The sensor signal turned ON at a position within 100μm from the final entry start position.	• Turn the tool measurement mode signal input OFF, and move the axis in a safe direction. • The operation alarm will turn OFF even when the sensor signal is turned OFF. Note) When the tool measurement mode signal input is turned OFF, the axis can be moved in either direction. Pay attention to the movement direction.
0020	Reference point return illegal Return to the reference point was performed before the coordinates had not been established.	• Execute reference point return
0024	Zero point return disabled during absolute position detection alarm A zero point return signal was input during an absolute position detection alarm.	• Reset the absolute position detection alarm‚ and then perform zero point return.
0025	Zero point return disabled during zero point initialization A zero point return signal was input during zero point initialization of the absolute position detection system.	• Complete zero point initialization‚ and then perform zero point return.

Error No.	Details	Remedy
0050	Chopping axis zero point return incomplete The chopping axis has not completed zero point return before entering the chopping mode. All axes interlock will be applied.	• Reset or turn the chopping signal OFF, and then carry out zero point return.
0051	Synchronization error too large The synchronization error of the master and slave axes exceeded the allowable value under synchronous control. A deviation exceeding the synchroni- zation error limit value was found with the synchronization deviation detection.	• Select the correction mode and move one of the axes in the direction in which the errors are reduced. • Increase the allowable value or reset it to 0 (check disabled). • When using simple C-axis synchronous control, set the contents of the R435 register to 0. • Check the parameter (#2024 synerr).
0101	NOT OP MODE (Not operation mode)	• Check for a broken wire in the input mode signal wire. • Check for trouble in the mode selector switch. • Check the sequence program.
0102	OVERRIDE ZERO (Override zero) “The cutting feed override” switch on the machine operation panel is set to zero.	• Set "the cutting feed override" switch to a value other than zero to release the error. • If "the cutting feed override" switch is set to a value other than zero‚ check for a short circuit in the signal wire. • Check the sequence program.
0103	EX F SPD ZRO (External feed speed zero) “The manual feed speed” switch on the machine operation panel is set to zero when the machine is in the jog mode or automatic dry run mode. The "Manual feedrate B speed" is set to zero during the jog mode when manual feedrate B is valid. The "each axis manual feedrate B speed" is set to zero during the jog mode when each axis manual feedrate B is valid.	• Set "the manual feed speed" switch to a value other than zero to release the error. • If “the manual feed speed” switch is set to a value other than zero‚ check for a short circuit in the signal wire. • Check the sequence program.
0104	F1 SPD ZRO (F1-digit speed zero) The F1-digit feedrate is set to zero when the F1-digit feed command is being executed.	• Set the F1-digit feedrate on the setup parameter screen.

Error No.	Details	Remedy
0105	SPINDLE STP (Spindle stop) The spindle stopped during the synchronous feed command.	• Rotate the spindle. • If the workpiece is not being cut‚ start dry run. • Check for a broken wire in the spindle encoder cable. • Check the connections for the spindle encoder connectors. • Check the spindle encoder pulse.
0106	HNDL FD NOW (Handle feed axis No. illegal) An axis not found in the specifications was designated for handle feed or the handle feed axis was not selected.	• Check for broken wires in the handle feed axis selection signal wire. • Check the sequence program. • Check the No. of axes listed in the specifications.
0107	SPDL RPM EXS (Spindle rotation speed excessive) The spindle rotation speed exceeded the axis clamp speed during the thread cutting command.	• Lower the commanded spindle rotation speed.
0108	Fixed point mode feed axis No. illegal: An axis not found in the specifications was designated for the fixed point mode feed or the fixed point mode feedrate is illegal.	• Check for broken wires in the fixed mode feed axis selection signal wire and fixed point mode feedrate wire. • Check the fixed point mode feed specifications.
0109	BLK ST INTLK (Block start interlock) An interlock signal that locks the start of the block has been input.	• Check the sequence program.
0110	CTBL ST INTLK (Cutting block start interlock) An interlock signal that locks the start of the cutting block has been input.	• Check the sequence program.
0111	Restart switch ON The restart switch was turned ON before the restart search was completed, and the manual mode was selected.	• Search the block to be restarted. • Turn OFF the restart switch.
0112	Program Check Mode The automatic start button was pressed during program check or in program check mode.	• Press the reset button to cancel the program check mode.
0113	Automatic start during buffer correction The automatic start button was pressed during buffer correction.	• Press the automatic start button after buffer correction is completed.

Error No.	Details	Remedy
0115	RESETTING The automatic start button was pressed during resetting or tape rewinding.	• When rewinding the tape‚ wait for the winding to end‚ or press the reset button to stop the winding‚ and then press the automatic start button. • During resetting‚ wait for resetting to end‚ and then press the automatic start button.
0117	PLAYBACK NOT POSSIBLE The playback switch was turned ON during editing or full-character mode (9-inch).	• During editing‚ cancel the function by pressing the input or previous screen key‚ and then turn ON the playback switch. • Set the edit screen (9-inch) to the half-character mode‚ and then turn ON the playback switch.
0118	Block joint turn stop during normal line control The turning angle at the block joint exceeded the limit during normal line control. Normal line control type I The normal line control axis turning speed (#1523 C_feed) has not been set. Normal line control type II When turning in the inside of the arc, the parameter “#8041 C-rot. R” setting value is larger than the arc radius.	• Check the program. • Set the normal line control axis turning speed. (Parameter “#1523 C_feed”) • Set the C axis turning diameter smaller than the arc radius, or check the setting value of the C axis turning diameter. (Parameter “#8041 C rot. R”)
0120	Synchronization correction mode ON The synchronous correction mode switch was pressed in a non-handle mode.	• Select the handle or manual feed mode. • Turn OFF the correction mode switch.
0121	No synchronous control option The synchronous control system (register R435) was set with no synchronous control option.	• Set 0 in register R435.
0123	Computer link B The cycle start was attempted before resetting was completed. The operation of the computer link B was attempted in the 2nd part system of the 2-part system.	• Perform the cycle start after resetting is completed. • Set 0 in #8109 HOST LINK, and then set 1 again before performing the cycle start. • The operation of the computer link B cannot be performed in the 2nd part system of the 2-part system.
0124	Simultaneous axis movement prohibited during inclined axis control valid The basic axis corresponding to the inclined axis was started simultaneously in the manual mode while the inclined axis control was valid.	• Turn the inclined axis and basic axis start OFF for both axes. (This also applied for manual/automatic simultaneous start.) • Invalidate the basic axis compensation, or command one axis at a time.

Error No.	Details	Remedy
0126	Program restart machine lock Machine lock was applied on the return axis while manually returning to the restart position.	• Release the machine lock before resuming operations.
0150	Chopping override zero	• Check the chopping override (R135). • Check the rapid traverse override (R134).
0151	Command axis chopping axis A chopping axis movement command was issued from the program during the chopping mode. (This alarm will not occur when the movement amount is commanded as 0.) (All axes interlock state will be applied.)	• Reset, or turn OFF the chopping signal. When the chopping signal is turned OFF, the axis will return to the reference position, and then the program movement command will be executed.
0153	Bottom dead center position zero The bottom dead center position is set to the same position as the upper dead center position.	• Correctly set the bottom dead center position.
0154	Chopping axis handle selection axis Chopping was started when the chopping axis was selected as the handle axis.	• Select an axis other than the chopping axis as the handle axis, or start chopping after changing the mode to another mode.
0160	Axis with no maximum speed set for the outside of the soft limit range Returned from the outside of the soft limit range for the axis with no maximum speed set for the outside of the soft limit range.	• Set the maximum speed for the outside of the soft limit range. (Parameter “#2021 out_f”) • Change the soft limit range. (Parameter “#2013 OT–” “#2014 OT+”)
1005	An attempt was made to execute G114.* during execution of G114.*. G51.2 was commanded when the G51.2 spindle-spindle polygon machining mode was already entered with a separate system.	• Issue G113 to cancel G114.. • Issue the spindle synchronous cancel signal (Y2E8: SPSYC) to cancel G114.. • Cancel with G50.2. • Cancel with the spindle-spindle polygon cancel signal (Y359).
1007	The spindle is being used in synchronized tapping.	• Cancel synchronized tapping.
1026	Spindle C axis and other position control were commanded simultaneously. C axis mode command was issued for polygon machining spindle. C axis mode command was issued for synchronized tapping spindle. Polygon command was issued for synchronized tapping spindle. Spindle is being used as spindle/C axis.	• Cancel the C axis command. • Cancel the polygon machining command. • Cancel the C axis with servo OFF.
Error No.	Details	Remedy
1030	Synchronization mismatch Different M codes were commanded in the two systems as the synchronization M codes. Synchronization with the "!" code was commanded in another system during M code synchronization. Synchronization with the M code was commanded in another system during synchronization with the "!" code.	• Correct the program so that the M codes match. • Correct the program so that the same synchronization codes are commanded.
1031	The C axis selection signal was changed when multiple C axes could not be selected. An axis that cannot be controlled as the multiple C axes selection was selected.	• Check and correct the parameters and program.
1032	Tap return spindle selection illegal during multi-spindle Tap return was executed when a different spindle was selected. Cutting feed will wait until synchronization is completed.	• Select the spindle for which tap cycle was halted before the tap return signal was turned ON.
1033	Spindle-spindle polygon (G51.2) cutting interlock Cutting feed will wait until synchronization is completed.	• Wait for synchronization to end.
1034	Cross machining command illegal Cross machining control exceeding the number of control axes was attempted. Cross machining control with duplicated axis addresses was attempted.	• Check the parameter settings for cross machining control.
1035	Cross machining control disable modal Cross machining control was commanded for a system in which cross machining control is disabled as shown below. • During nose R compensation mode • During pole coordinate interpolation mode • During cylindrical interpolation mode • During balance cut mode • During fixed cycle machining mode • During facing turret mirror image	• Check the program.

Error No.	Details	Remedy
1036	Synchronous control designation disable The synchronous control operation method selection (R435 register) was set when the mode was not the C axis mode. The synchronous control operation method selection (R435 register) was set in the zero point not set state. Mirror image disable state The external mirror image or parameter mirror image was commanded during facing turret mirror image.	• Set the R435 register to 0. • Check the program and parameters.
1037	Synchronous control was started or canceled when synchronous control could not be started or canceled.	• Check the program and parameters.
1038	A movement command was issued to a synchronous axis in synchronous control.	• Check the program.
1043	No spindle speed clamp The constant surface speed command (G96) was issued to the spindle which is not selected for the spindle speed clamp command (G92/G50) under Multiple spindle control II.	Press the reset key and carry out the remedy below. • Select the spindle before commanding G92/G50. (Applicable only to M65 V series and M64 C version series)
1106	Spindle synchronous phase calculation illegal The spindle synchronization phase alignment command was issued while the spindle synchronization phase calculation request signal was ON.	• Check the program. • Check the sequence program.

(The bold characters are the messages displayed on the screen.)

M90 PARAM SET MODE		M90 Messages output when the setup parameter lock function is enabled are displayed.
Error No.	Details		Remedy
—	Setup parameter lock released The setup parameter lock is released. Automatic start is disabled when setup parameters can be set.		• Refer to the manual issued by the machine manufacturer.

1.2 Stop Codes

These codes indicate a status that caused the controller to stop for some reason. (The bold characters are the messages displayed on the screen.)

T01 CAN’T CYCLE ST		This indicates the state where automatic operation cannot be started when attempting to start it from the stop state.
Error No.	Details		Remedy
0101	AX IN MOTION (axis in motion) Automatic start is not possible as one of the axes is moving.		• Try automatic start again after all axes have stopped.
0102	READY OFF Automatic start is not possible as the NC is not ready.		• Another alarm has occurred. Check the details and remedy.
0103	RESET ON Automatic start is not possible as the reset signal has been input.		• Turn OFF the reset input signal. • Check that the reset switch is not ON constantly due to trouble. • Check the sequence program.
0104	A-OP STP SGL (Automatic operation stop signal ON) The FEED HOLD switch on the machine operation panel is ON (valid).		• Check the FEED HOLD switch. • The feed hold switch is the B contact. • Check for broken wires in the feed hold signal wire. • Check the sequence program.
0105	H/W STRK END (H/W stroke end axis) Automatic start is not possible as one of the axes is at the stroke end.		• If one of the axis’ ends is at the stroke end‚ move the axis manually. • Check for broken wire in the stroke end signal wire. • Check for trouble in the stroke end limit switch.
0106	S/W STRK END (S/W stroke end axis) Automatic start is not possible as one of the axes is at the stored stroke limit.		• Move the axis manually. • If an axis is not at the end‚ check the parameter details.
0107	NO OP MODE (NO operation mode) The operation mode has not been selected.		• Select the automatic operation mode. • Check for broken wires in the automatic operation mode (memory‚ tape‚ MDl) signal wire.

Error No.	Details	Remedy
0108	OP MODE DUPL (Operation mode duplicated) Two or more automatic operation modes are selected.	• Check for a short circuit in the mode selection signal wire (memory‚ tape‚ MDl). • Check for trouble in the switch. • Check the sequence program.
0109	OP MODE SHFT (Operation mode shift) The automatic operation mode changed to another automatic operation mode.	• Return to the original automatic operation mode‚ and start automatic start.
0110	Tape search execution Automatic start is not possible as tape search is being executed.	• Begin automatic start after the tape search is completed.
0112	Program restart position return incomplete Automatic start is not possible as the axis has not been returned to the restart position.	• Manually return to the restart position. • Turn the automatic restart valid parameter ON, and then execute automatic start.
0113	Thermal alarm Automatic start is not possible because a thermal alarm (Z53 TEMP. OVER) has occurred.	• The NC controller temperature has exceeded the specified temperature. • Take appropriate measures to cool the unit.
0115	In host communication Automatic start cannot be executed as the NC is communicating with the host computer.	• Execute automatic start after the communication with the host computer is completed.
0138	Disabled start during absolute position detection alarm A start signal was input during an absolute position detection alarm.	• Reset the absolute position detection alarm‚ and then input the start signal.
0139	Disabled start during zero point initialization A start signal was input while initializing the absolute position detector’s zero point.	• Complete zero point initialization before inputting the start signal.
0190	Automatic start disabled Automatic start is disabled because setup parameters can be set.	• Refer to the manual issued by the machine manufacturer.
0191	Automatic start disabled Automatic start was caused during file deletion or writing.	• Cause automatic start after file deletion or writing is completed.

T02 FEED HOLD		The feed hold state been entered due to a condition in the automatic operation.
Error No.	Details		Remedy
0201	H/W STRK END (H/W stroke end axis) An axis is at the stroke end.		• Manually move the axis away from the stroke end limit switch. • The machining program must be corrected.
0202	S/W STRK END (S/W stroke end axis) An axis is at the stored stroke limit.		• Manually move the axis. • The machining program must be corrected.
0203	RESET SIGNAL ON (Reset signal on) The reset signal has been input.		• The program execution position has returned to the start of the program. Execute automatic operation from the start of the machining program.
0204	AUTO OP STOP (Automatic operation stop) The FEED HOLD switch is ON.		• Resume automatic operation by pressing the “CYCLE START” switch.
0205	AUTO MD CHING (Automatic mode change) The operation mode changed to another mode during automatic operation.		• Return to the original automatic operation mode‚ and resume automatic operation by pressing the “CYCLE START” switch.
0206	Acceleration and deceleration time constants too large The acceleration and deceleration time constants are too large. (This problem occurs at the same time as system alarm Z59.)		• Increase the set value of the parameter “#1206 G1bF”. • Decrease the set value of the parameter “#1207 G1btL”. • Lower the cutting speed.
0215	Absolute position detection alarm stop An absolute position detection alarm occurred.		• Reset the absolute position detection alarm.

T03 BLOCK STOP		This indicates that automatic operation stopped after executing one block of the program.
Error No.	Details		Remedy
0301	SNGL BLK ON (Single block on) The SINGLE BLOCK switch on the machine operation panel is ON. The single block or machine lock switch changed.		• Automatic operation can be resumed by turning the CYCLE START switch ON.
0302	User macro stop The block stop command was issued in the user macro program.		• Automatic operation can be resumed by turning the CYCLE START switch ON.
0303	Mode change The automatic mode changed to another automatic mode.		• Return to the original automatic operation mode‚ and resume automatic operation by turning the CYCLE START switch ON.
0304	MDI completion The last block of MDI was completed.		• Set MDI again‚ and turn the CYCLE START switch ON to resume MDl operation.
0305	Block start interlock The interlock signal that locks the block start is entered.		• Check the sequence program.
0306	Block cutting start interlock The interlock signal that locks the block cutting start is entered.		• Check the sequence program.
0310	Offset change of inclined Z-axis during program operation Whether to validate the offset of the inclined Z-axis switched during program operation.		• Automatic operation can be restarted by turning ON the cycle start switch.

T04 COLLATION STOP		Collation stop was applied during automatic operation.
Error No.	Details		Remedy
0401	Collation stop occurred.		• Automatic operation can be restarted with automatic start.

T10 FIN WAIT

This indicates the operation state when an alarm did not occur during automatic operation‚ and nothing seems to have happened.

Error No.

Details

The error number is displayed while each of the completion wait modes listed in the table below is ON. It disappears when the mode is canceled.

Note 1: This mode is enabled by the door interlock function.

Note 2: The system is waiting for the index table indexing unclamp signal to turn

ON or OFF

1.3 Servo/Spindle Alarms

This section describes alarms occurred by the errors in the servo system such as the drive unit‚ motor and encoder, etc. The alarm message‚ alarm No. and axis name will display on the alarm message screen. The axis where the alarm occurred and the alarm No. will also display on the servo monitor screen and the spindle monitor screen respectively. If several alarms have occurred‚ up to two errors per axis will display on the servo monitor screen and the spindle monitor screen respectively. (The bold characters are the messages displayed on the screen.)

S SERVO ALARM : _×× 0 0 _ΔΔ

Servo : Axis name

Axis name

Spindle : “S”, “T”, “M”, “N” Alarm No.

Alarm reset class

Alarm class

(Note 1) The alarm class and alarm reset class combinations are preset.

(Refer to the separate table for S02, S51 and S52.)

Alarm class	Alarm reset class	Resetting methods
S01	PR	After removing the cause of the alarm, reset the alarm by turning the NC power ON again.
S03	NR	After removing the cause of the alarm, reset the alarm by inputting the NC RESET key.
S04	AR	After removing the cause of the alarm, reset the alarm by turning the drive unit power ON again.

(Note 2) The resetting method may change according to the alarm class.

For example, even if “S03 SERVO ALARM: NR” is displayed, it may be necessary to turn the NC power ON again.

Alarm No.

Name

Meaning

Insufficient voltage

Insufficient PN bus voltage was detected in main circuit.

Axis selection error

Setting of the axis No. selection switch is incorrect.

Memory error 1

A CPU error or an internal memory error was detected during the power ON self-check.

Software processing error 1

Software processing has not finished within the specified time.

Software processing error 2

Software processing has not finished within the specified time.

Memory error 2

A CPU error or an internal memory error was detected during the power ON self-check.

Magnetic pole position detection error

Initial magnetic pole for motor control has not been formed yet.

A/D converter error

An error was detected in the A/D converter for detecting current FB.

Motor side detector:

Initial

communication error

Initial communication with the motor end detector failed.

Detector

communication error in synchronous control

Initial communication with the motor end detector on master axis failed when setting closed-loop current synchronous control. Or the communication was interrupted.

Alarm No.

Name

Meaning

Machine side

detector: Initial communication error

Initial communication with the linear scale or the ball screw end detector failed.

Machine side detector: CPU error 1

CPU initial error was detected in the linear scale or in the ball screw end detector.

Machine side detector:

EEPROM/LED error

An error was detected in the stored data of the linear scale memory. Or the LED deterioration was detected in the ball screw end detector.

Machine side detector: Data error

An error data was detected in the linear scale or in the ball screw end detector.

Machine side detector: Memory

error

An internal memory error was detected in the linear scale.

Machine side detector:

Communication

error

An error was detected in communication data with the linear scale or the ball screw end detector. Or the communication was interrupted.

Motor side detector: No signal

No signals were detected in A,B,Z-phase or U,V,W-phase of the pulse motor end detector in a servo system, or in Z-phase of PLG in a spindle system.

Machine side detector: No signal

No signals were detected in A,B,Z-phase of the pulse linear scale or the ball screw end detector in a servo system. Or no encoder signals were detected in a spindle system.

LSI error

LSI operation error was detected in the drive unit.

Excessive speed error 1

A difference between the speed command and speed feedback was continuously exceeding 50 r/min for longer than the setting time.

Grounding

The motor power cable is in contact with FG (Frame Ground).

Absolute position data lost

The absolute position was lost, as the backup battery voltage dropped in the absolute position detector.

Unused axis error

A power module error occurred in the axis whose axis No. selection switch was set to "F"(free axis).

Machine side detector: CPU error 2

A CPU error was detected in the linear scale.

Machine side detector: Overspeed

The specified max. speed was detected in the linear scale.

Machine side detector: Absolute position data error

An error was detected in the absolute position detection circuit of the linear scale.

Machine side detector: Relative position data error

An error was detected in the relative position detection circuit of the linear scale.

Motor side detector: CPU error 1

A CPU initial error was detected in the motor end detector or in the linear scale of a linear servo system.

Motor side detector:

EEPROM/LED error

The LED deterioration was detected in the motor end detector. Or an error was detected in the stored data of the linear scale memory of a linear servo system.

Alarm No.	Name	Meaning
2D	Motor side detector: Data error	A data error was detected in the motor end detector or in the linear scale of a linear servo system.
2E	Motor side detector: Memory error	An internal memory error was detected in the linear scale of a linear servo system.
2F	Motor side detector: Communication error	An error was detected in communication data with the motor end detector or with the linear scale of a linear servo system. Or the communication was interrupted.
30	Over regeneration	Over-regeneration detection level became over 100%. The regenerative resistor is overloaded.
31	Overspeed	The motor was detected to rotate at a speed exceeding the allowable speed.
32	Power module overcurrent	Overcurrent protection function in the power module has started its operation.
33	Overvoltage	PN bus voltage in main circuit exceeded the allowable value.
34	NC-DRV communication: CRC error	An error was detected in the data received from the CNC.
35	NC command error	The travel command data that was received from the CNC was excessive.
36	NC-DRV communication: Communication error	The communication with the CNC was interrupted.
37	Initial parameter error	An incorrect parameter was detected among the parameters received from the CNC at the power ON.
38	NC-DRV communication: Protocol error 1	An error was detected in the communication frames received from the CNC.
39	NC-DRV communication: Protocol error 2	An error was detected in the axis information data received from the CNC.
3A	Overcurrent	Excessive current was detected in the motor drive current.
3B	Power module overheat	Thermal protection function in the power module has started its operation.
3C	Regeneration circuit error	An error was detected in the regenerative transistor or in the regenerative resistor.
3D	Spindle speed blocked	The spindle motor failed to rotate faster than 45 r/min, even when the max. torque command was given.
3E	Spindle speed overrun	1. The spindle motor speed feedback was detected to be accelerated exceeding the commanded speed. 2. The spindle motor was detected to be rotated at a speed exceeding the parameter value, while the speed command was "0" (including the case of operation stoppage during the position control).
3F	Excessive speed error 2	A difference between the speed command and speed feedback was detected to exceed the setting amount or setting time in a constant speed operation.

Alarm No.	Name	Meaning
40	Detector selection unit switching error	An error was detected in the motor switching signals that were received from the detector selection unit, while controlling one drive unit and two motors.
41	Detector selection unit communication error	An error was detected in the communication with the detector selection unit, while controlling one drive unit and two motors.
42	Feedback error 1	An error was detected in the feedback signals of the pulse motor end detector in a servo system, or in PLG's feedback signals in a spindle system.
43	Feedback error 2	Excessive difference was detected in position data between the motor end detector and the machine end detector in a servo system. In a spindle system, an error was detected in the encoder feedback signals.
44	Inappropriate coil selected for C axis	When using a coil changeover motor, C-axis was controlled while the high-speed coil was selected.
45	Fan stop	A cooling fan built in the drive unit stopped, and the loads on the unit exceeded the specified value.
46	Motor overheat	Thermal protection function of the motor or in the detector, has started its operation.
47	Regenerative resistor overheat	Thermal protection function of the regenerative resistor, has started its operation.
48	Motor side detector: CPU error 2	A CPU error was detected in the linear scale of a linear servo system.
49	Motor side detector: Overspeed	The specified max. speed was detected in the linear scale of the linear servo system.
4A	Motor side detector: Absolute position data error	An error was detected in the absolute position detection circuit in the linear scale of a linear servo system.
4B	Motor side detector: Relative position data error	An error was detected in the relative position detection circuit in the linear scale of a linear servo system.
4C	Current error at magnetic pole detection	A current error was detected in the IPM spindle motor when the initial magnetic pole was being formed.
4E	NC command mode error	The mode outside the specification was input in spindle control mode selection.
4F	Instantaneous power interruption	The power was momentarily interrupted.
50	Overload 1	Overload detection level became over 100%. The motor or the drive unit is overloaded.
51	Overload 2	Current command of more than 95% of the unit's max. current was being continuously given for longer than 1 second in a servo system. In a spindle system, the load over the continuous rating was being applied for longer than 30 minutes.
52	Excessive error 1	A difference between the actual and theoretical motor positions during servo ON exceeded the setting value in a servo system. In a spindle system, a difference between the position command and position feedback exceeded the setting value.

Alarm No.	Name	Meaning
53	Excessive error 2	A difference between the actual and theoretical motor positions during servo OFF exceeded the setting value.
54	Excessive error 3	When an excessive error 1 occurred, detection of the motor current failed.
55	External emergency stop error	There is no contactor shutoff command, even after 30 seconds has passed since the external emergency stop was input.
57	Option error	An invalid option function was selected.
58	Collision detection 1: G0	When collision detection function was valid, the disturbance torque in rapid traverse (G0) exceeded the collision detection level.
59	Collision detection 1: G1	When collision detection function was valid, the disturbance torque in cutting feed (G1) exceeded the collision detection level.
5A	Collision detection 2	When collision detection function was valid, the command torque reached the max. motor torque.
5C	Orientation feedback error	After orientation was achieved, a difference between the command and feedback exceeded the parameter setting.
5D	Speed monitoring: Input mismatch	As for door state signal of speed monitoring control, a mismatch between the external input signal and the control signal received from the CNC was detected.
5E	Speed monitoring: Feedback speed error	In speed monitoring control, the spindle speed was exceeding the setting speed with the door open.
5F	External contactor error	A contact of the external contactor is welding. Or the contactor fails to be ON during ready ON.
61	Power module overcurrent	Overcurrent protection function in the power module has started its operation.
62	Frequency error	The input power supply frequency increased above the specification range.
63	Supplementary regeneration error	The supplementary regenerative transistor is being ON.
65	Rush relay error	A resistor relay for rush short circuit fails to be ON.
67	Phase interruption	An open-phase condition was detected in input power supply circuit.
68	Watchdog	The system does not operate correctly.
69	Grounding	The motor power cable is in contact with FG (Frame Ground).
6A	External contactor welding	A contact of the external contactor is welding.
6B	Rush relay welding	A resistor relay for rush short circuit fails to be OFF.
6C	Main circuit error	An error was detected in charging operation of the main circuit capacitor.
6D	Parameter error	The capacity of the power supply unit and the regenerative resistor type that was set in the parameter are mismatched.
6E	Memory error	An internal memory error was detected.
6F	Power supply error	A power supply unit is not connected. Or an error was detected in A/D converter of the power supply unit.
71	Instantaneous power interruption	The power was momentarily interrupted.

Alarm No.	Name	Meaning
73	Over regeneration	Over-regeneration detection level became over 100%. The regenerative resistor is overloaded.
74	Regenerative resistor overheat	Thermal protection function of the regenerative resistor, has started its operation.
75	Overvoltage	PN bus voltage in main circuit exceeded the allowable value.
76	External emergency stop setting error	As for the external emergency stop settings, the setting on the rotary switch and the parameter setting are mismatched.
77	Power module overheat	Thermal protection function in the power module has started its operation.
7F	Drive unit power supply restart request	A mismatch of program mode selection was detected. Turn the drive unit power ON again.
80	Detector converting unit 1: Connection error	A connection error was detected between the analog output linear scale and the unit MDS-B-HR that is used in a linear servo system.
81	Detector converting unit 1: Communication error	A communication error was detected between the serial output linear scale and the unit MDS-B-HR that is used in a linear servo system.
83	Detector converting unit 1: Judgment error	Judgment of the linear scale analog frequency failed in the unit MDS-B-HR that is used in a linear servo system.
84	Detector converting unit 1: CPU error	A CPU error was detected in the unit MDS-B-HR that is used in a linear servo system.
85	Detector converting unit 1: Data error	A data error was detected in the unit MDS-B-HR that is used in a linear servo system.
86	Detector converting unit 1: Magnetic pole error	An error was detected in the magnetic pole of the unit MDS-B-HR that is used in a linear servo system.
88	Watchdog	The system does not operate correctly.
89	Detector converting unit 2: Connection error	A connection error was detected between the analog output linear scale and the unit MDS-B-HR in a servo system. In a spindle system, the initial communication with MDS-B-PJEX failed.

Alarm No.	Name	Meaning
8A	Detector converting unit 2: Communication error	An error was detected in the communication with the serial output linear scale of the unit MDS-B-HR in a servo system. In a spindle system, an error was detected in the communication with MDS-B-PJEX.
8B	Detector converting unit 2: Automatic tuning error	An abnormal signal was detected from PLG in automatic PLG tuning.
8C	Detector converting unit 2: Judgment error	The detector type outside the specification was designated in MDS-B-PJEX.
8D	Detector converting unit 2: CPU error	A CPU error was detected in the unit MDS-B-HR in a servo system, or in the unit MDS-B-PJEX in a spindle system.
8E	Detector converting unit 2: Data error	A data error was detected in the unit MDS-B-HR.

S02 INIT PARAM ERR _ΔΔΔΔ _{Axis name} Servo : Axis name Spindle : “S”, “T”, “M”, “N” Alarm No. (parameter No.)
An error was found in the parameters transmitted from the controller to the drive unit when the power was turned ON. Remove the cause of the alarm, and then reset the alarm by turning the controller power OFF once.
Alarm No.	Details	Remedy
2201 - 2264	The servo parameter setting data is illegal. The alarm No. is the No. of the servo parameter where the error occurred.	Check the descriptions for the appropriate servo parameters and correct them.
2301	The number of constants to be used in the following functions is too large: • Electronic gears • Position loop gain • Speed feedback conversion	Check that all the related parameters are specified correctly. sv001:PC1, sv002:PC2, sv003:PGN1 sv018:PIT, sv019:RNG1, sv020:RNG2
2302	High-speed serial incremental detector Parameters for absolute position detection are set to ON during OSE104 and OSE105 connection. Set the parameters for absolute position detection to OFF. To detect an absolute position, replace the incremental specification detector with an absolute position detector.	Check that all the related parameters are specified correctly. sv017:SPEC, sv025:MTYP
2303	No servo option is found. The closed loop (including the ball screw- end detector) or dual feedback control is an optional function.	Check that all the related parameters are specified correctly. sv025:MTYP/pen sv017:SPEC/dfbx

Alarm No.	Details	Remedy
2304	No servo option is found. The SHG control is an optional function.	Check that all the related parameters are specified correctly. sv057:SHGC sv058:SHGCsp
2305	No servo option is found. The adaptive filtering is an optional function.	Check that all the related parameters are specified correctly. sv027:SSF1/aflt
3201 - 3584	The spindle parameter setting data is illegal. The alarm No. is the No. of the spindle parameter where the error occurred.	Check the descriptions for the appropriate spindle parameters and correct them. Refer to Spindle Drive Maintenance Manual.

S51 PARAMETER ERROR ΔΔΔΔ _{Servo : Axis name}

Axis name

Spindle : “S”, “T”, “M”, “N” Alarm No.

(parameter No.)

Warning appears if a parameter set outside the tolerable range is set.

Illegal settings will be ignored.

This alarm will be reset when the correct value is set.

Alarm No.

Details

Remedy

2201 - 2264

Servo parameter setting data is illegal.

The alarm No. is the No. of the servo parameter where the warning occurred.

Check the descriptions for the appropriate servo parameters and correct them.

3201 - 3584

Spindle parameter setting data is illegal.

The alarm No. is the No. of the spindle parameter where the warning occurred.

Check the descriptions for the appropriate spindle parameters and correct them.

Refer to Spindle Drive Maintenance Manual.

S52 SERVO WARNING 0 0 _ΔΔ Servo : Axis name Axis name Spindle : “S”, “T”, “M”, “N” Alarm No. (Warning No.)
The drive unit warning is displayed.
Alarm No.	Name	Meaning
90	Detector: Initial communication error	Initial communication with the absolute position linear scale failed.
91	Detector: Communication error	An error was detected in the communication with the detector in absolute position detection system.
92	Detector: Protocol error	A data error was detected in absolute position detection system.
93	Initial absolute position fluctuation	The position data have fluctuated during the absolute position initializing.
96	Scale feedback error	An excessive deviation was detected between the motor end detector and MP scale feedback data in a MP scale absolute position detection system.
97	Scale offset error	An error was detected in the offset data received from the MP scale in a MP scale absolute position detection system.
9B	Detector converting unit: Magnetic pole shift warning	An error was detected in the shift distance of the magnetic pole in a linear servo system.
9C	Detector converting unit: Magnetic pole warning	A data error was detected in the magnetic pole of MDS-B-HR after passing Z-phase in a linear servo system.
Alarm No.	Name	Meaning
9E	Absolute position detector: Revolution counter error	An error was detected in the revolution counter of the absolute position detector. The absolute position data cannot be compensated.
9F	Battery voltage drop	The battery voltage that is supplied to the absolute position detector dropped. The absolute position data is retained.
A6	Fan stop warning	A cooling fan built in the drive unit stopped.
A8	Turret indexing warning	The designated position shift amount of turret indexing is outside the setting range.
A9	Orientation feedback warning	As an orientation feedback error occurred, the retrial has been conducted.
E0	Over regeneration warning	Over-regeneration detection level exceeded 80%.
E1	Overload warning	Overload detection level exceeded 80%.
E2	Continuous high-speed revolution warning	The motor was continuously rotated at a speed exceeding the rated speed.
E3	Absolute position counter warning	Deviation between the absolute and relative position data was detected.
E4	Set parameter warning	A parameter setting was outside the setting range.
E6	Control axis detachment warning	Control axis detachment was commanded.
E7	In NC emergency stop state	Emergency stop was input from the CNC.
E8	Excessive supplementary regeneration frequency	Regeneration that are beyond the power supply limitation has frequently occurred.
E9	Instantaneous power interruption warning	The power was momentarily interrupted.
EA	In external emergency stop state	External emergency stop signal was input.
EB	Over regeneration warning	Over-regeneration detection level exceeded 80%.

1.4 MCP Alarm

An error has occurred in the drive unit and other interfaces. (The bold characters are the messages displayed on the screen.)

Y02 SYSTEM ALARM			An error occurred in the data transmitted between the MCP and drive unit after the power was turned ON.
Error No.	Details			Remedy
0050	Background error			The software or hardware may be damaged. Contact the service center.
0051	0000	CRC error (10 times/910.2 ms)		A communication error has occurred between the controller and drive unit. • Take measures against noise. • Check that the communication cable connector between the controller and drive unit and one between the drive units are tight. • Check whether the communication cable between the controller and drive unit and one between the drive units are disconnected. • A drive unit may be faulty. Take a note of the 7-segment LED contents of each drive unit and report to the Service Center.
	0001	CRC error (2 continuous times)
	0002	Reception timing error (2 continuous times)
	××03	Data ID error (2 continuous times) ××: Axis No.
	××04	No. of reception frames error (2 continuous times) ××: Axis No.

Y03 AMP. UNEQUIPPED The drive unit is not correctly connected		Check the drive unit mounting state. • Check the end of the cable wiring. • Check the cable for broken wires. • Check the connector insertion. • The drive unit input power is not being input. • The drive unit axis No. switch is illegal.
Error No.	Details
Alphabet (axis name)	Servo axis drive unit not mounted
1 – 4	PLC axis drive unit not mounted
S	No.1 spindle axis drive unit not mounted
T	No.2 spindle axis drive unit not mounted

Y05 INIT PARAM ERR

↑

: Error parameter number

Details

Remedy

There is a problem in the value set for the number of axes or the number of systems.

Check the value set for the corresponding parameters. #1001 SYS_ON

#1002 axisno

#1039 spinno etc.

Y06 mcp_no ERROR		There are differences in the MCP and axis parameters when the NC power is turned ON.
Error No.	Details		Remedy
0001	There is a skipped number in the channels.		Check the values set for the following parameters. #1021 mcp_no #3031 smcp_no #3032 mbmcp_no
0002	The random layout setting is duplicated.
0003	The drive unit fixed setting “0000” and random layout setting “∗∗∗∗” are both set.
0004	The spindle/C axis “#3031 mcp_no” and “#3032 smcp_no” are set to the same values.
0005	A random layout is set for the “#1154 pdoor” =1 two-system.
0006	The channel No. parameter is not within the setting range.

Y51 PARAMETER ERROR		An error occurred in a parameter that causes an alarm while the control axis was operating.
Error No.	Details		Remedy
1	LN FEED ABNL (Linear feed abnormal) The time constant has not been set or the setting exceeded the setting range.		• Check “#2004 G0tL”.
2	CT FEED ABNL (Cutting feed abnormal) The time constant has not been set or the setting exceeded the setting range.		• Check “#2007 G1tL”.
3	DLY F-F ABNL (Delayed fast feed abnormal) The time constant has not been set or the setting exceeded the setting range.		• Check “#2005 G0t1”.
4	DLY CUTG ABNL (Delayed cutting feed abnormal) The time constant has not been set or the setting exceeded the setting range.		• Check “#2008 G1t1”.
9	GRID SPACE ERROR		• Check “#2029 grspc”.
12	SYNCHRONOUS TAP CYCLE ACCELERATION/DECELERATION TIME CONSTANT ERROR The time constant has not been set or the setting exceeded the setting range.		• Check spindle parameters #3017 stapt1 to #3020 stapt4.
15	LN SKIP ABNL (Linear skip abnormal) The time constant has not been set or the setting exceeded the setting range.		• Check “#2102 skip_tL”.
16	DLY SKIP ABNL (Delayed skip abnormal) The time constant has not been set or the setting exceeded the setting range.		• Check “#2103 skip_t1”.
17	"#1205 G0bdcc" for the 2nd system is set to acceleration/deceleration before G0 interpolation.		• Check “#1205 G0bdcc".
101	ROTARY AXIS GEAR RATIO EXCESSIVE (ABSOLUTE POSITION DETECTION)		• Check “#2201 PC1” and “#2202 PC2”.

Y90 SP. NON SIGNAL

Alarm No.
1
2
3
4
5
6
7

(Alarm No.)

0 0

Z open phase	B open phase	A open phase
		×
	×
	×	×
×
×		×
×	×
×	×	×

Alarm No.

Details

Remedy

0001 – 0007

There is an error in the spindle encoder signal.

The data transmission to the drive unit is stopped when this error occurs.

• Check the spindle encoder’s feedback cable and the encoder.

1.5 System Alarms

The following messages are displayed with the register at the time when the error occurred if the system stops due to a system error.

Message	Details	Remedy
Parity error	RAM error	• Write down the displayed register‚ and contact the service center.
Bus error	A non-existing memory was accessed.
Zero divide	The division with a 0 denominator was attempted.
Watch dog error	The software process is not functioning correctly.
Illegal exception	The alarm was caused by an illegal software function not listed above.
Address error	An illegal memory was accessed.
Illegal instruction	The software process is not functioning correctly.
Stack overflow	The software process is not functioning correctly.

Z30 ETHERNET ERROR ↑ Warning No.
Warning No.	Explanation
0001	Socket open error (socket)
0002	Socket bind error (bind)
0003	Connection wait queue error (listen)
0004	Connection request acceptance error (accept)
0005	Data receive error (socket error)
0006	Data receive error (data shortage or disconnection)
0007	Data receive error (socket error)
0008	Data receive error (data shortage or disconnection)
000A	Socket close error (close)

Note: If warning No. 0001, 0002, 0003, or 000A is displayed, set the parameters, then turn power OFF and turn it ON again.

Z31 DATA SERVER ERROR ↑ Warning No.
Warning No.	Explanation
0001	Socket open error (socket)
0002	Socket bind error (bind)
0003	Connection wait queue error (listen)
0004	Connection request acceptance error (accept)
0005	Data receive error (socket error)
0006	Data receive error (data shortage or disconnection)
0007	Data receive error (socket error)
0008	Data receive error (data shortage or disconnection)
000A	Socket close error (close)

Note: If warning No. 0001, 0002, 0003, or 000A is displayed, set the parameters, then turn power OFF and turn it ON again.

Message

Details

Remedy

Z40

FORMAT

NOT MET

This appears when the parameter MemVal is formatted at 0, and MemVal is set to 1.

• Either return the MemVal setting, or format and restart.

The bold characters are the messages displayed on the screen.

Message		Details		Remedy
Z51	EE ROM ERROR 000x	This occurs when the parameters were not correctly written into the EEROM. Formatting of the machine manufacturer macro program area did not end correctly. The machine manufacturer macro program was not written into the FROM correctly. Z51 ROM error 0001: Open error Z51 ROM error 0002: Erase error Z51 ROM error 0003: Write error Z51 ROM error 0004: Verify error		• If the same alarm is output by the same operation, the cause is an H/W fault. Contact the Service Center. • Reformat the area. • Write to the FROM again.
Z52	BATTERY FAULT	The voltage of the battery inserted in the NC control unit has dropped. (The battery used to save the internal data)		• Replace the battery of the NC control unit. • After treating the battery‚ check the machining program.
Z53	TEMP. OVER	The controller or operation board temperature has risen above the designated value. (Note 1)		• Cooling measures are required. Turn OFF the controller power‚ or lower the temperature with a cooler‚ etc.
Z55	RIO NOT CONNECT	This occurs when an error occurs in the communication between the controller and remote l/O unit. • Cable breakage • Remote l/O unit fault • Power supply to remote l/O unit fault(Note 2)		• Check and replace the cables. • Replace the remote I/O unit. • Check the power supply. (existence of supply‚ voltage)
Z57	SYSTEM WARNING	The program memory capacity setting value cannot be formatted. The expansion cassette (HR437) is not mounted after formatting. An expansion cassette different from the expansion cassette (HR437) mounted during formatting is mounted. (Note 3)		Check the state of the following items. • Program memory capacity • Status of expansion cassette (HR437) mounting • APLC open option
Z58 ROM WR UNFIN		The machine manufacturer macro program was not written to the FROM after being registered, edited, copied, condensed, merged, the number changed, or deleted.		• Write the machine manufacturer macro program to the FROM. * If the operations, such as editing, done while the NC power was OFF can be invalidated, the program does not need to be written to the FROM.
Message			Details	Remedy
Z59 TIME CONSTANT			Acceleration and deceleration time constants are too large. (This alarm is output at the same time as “T02 FEED HOLD 0206.”)	• Increase the value specified as the #1206 G1bF parameter. • Decrease the value specified as the #1207 G1btL parameter. • Lower the feedrate.

CAUTION

If the battery low warning is issued, save the machining programs, tool data and parameters in an input/output device, and then replace the battery. When the battery alarm is issued, the machining programs, tool data and parameters may be destroyed. Reload the data after replacing the battery.

Do not replace the battery while the power is ON.

Do not short circuit, charge, heat, incinerate or disassemble the battery. Dispose of the spent battery following local laws.

Note 1: Temperature warning

If the alarm is displayed when an overheat alarm is detected‚ the overheat signal will be output simultaneously. If the machine is in automatic operation‚ the operation will be continued‚ but restarting will not be possible after resetting or stopping with M02/M30. (Starting will be possible after block stop or feed hold.) The alarm will be reset and the overheat signal will turn OFF when the temperature drops below the specified temperature.

Z53 TEMP. OVER

000x

↑

0001 : The temperature in the controller is high.

0002 : The temperature around the communication terminal (setting and display unit) is high.

0003 : The temperature in the controller and around the communication terminal (setting and display unit) is high.

The ambient temperature must be lowered immediately when a “Z53 TEMP.OVER” alarm occurs‚ but if machining must be continued‚ the alarm can be invalidated by turning the following parameter OFF.

7 6 5 4 3 2 1 0

PLC parameter bit selection #6449

Communication terminal

(setting and display unit)

Controller

0: Detection invalid 1: Detection valid

Note 2: RIO communication interrupt

If communication between the control unit and remote I/O unit fails, the alarm and remote I/O unit number are displayed.

(a)(b) Board connection remote I/O ↓ ↓ communication interrupted station

Z55 RIO NOT CONNECT

Remote I/O 1st system communication

interrupted station

Remote I/O 2nd system communication

interrupted station

(a) and (b) above indicate the following matters.

Alarm number	RIO (seventh station)	RIO (sixth station)	RIO (fifth station)	RIO (fourth station)	Alarm number	RIO (third station)	RIO (second station)	RIO (first station)	RIO (0th station)
0					0
1				×	1				×
2			×		2			×
3			×	×	3			×	×
4		×			4		×
5		×		×	5		×		×
6		×	×		6		×	×
7		×	×	×	7		×	×	×
8	×				8	×
9	×			×	9	×			×
A	×		×		A	×		×
B	×		×	×	B	×		×	×
C	×	×			C	×	×
D	×	×		×	D	×	×		×
E	×	×	×		E	×	×	×
F	×	×	×	×	F	×	×	×	×

This applies for both the remote I/O 1st system communication interrupted station and board connection remote I/O communication interrupted station.

Note 3: System warning

Z57 SYSTEM WARNING

00xx 0000

↑

001x : When the expansion cassette (HR437) is not mounted, a program memory capacity exceeding 1280m was designated.

002x : When the APLC open option was validated, 5120m was designated for the program memory capacity.

00x1 : After formatting the program memory capacity to 1280m or more, the expansion cassette (HR437) was removed, or an expansion cassette (HR437) not used during formatting was mounted.

1.6 Absolute Position Detection System Alarms

Z70 ABS. ILLEGAL (Error No.) (Axis name)			This error is displayed if the absolute position data is lost in the absolute position detection system.
Error No.	Details	Remedy		Zero point initialization	Alarm reset when power is turned OFF	Servo alarm No.
0001	Zero point initialization is incomplete. Otherwise, the spindle was removed.	Complete zero point initialization.		Required	−	−
0002	The absolute position reference point data saved in the NC has been destroyed.	Input the parameters. If the reference point data cannot be restored‚ perform zero point initialization.		(Required)	−	−
0003	The parameters used to detect the absolute position have been changed. #1003 iunit #2201 PC1 #1016 iout #2202 PC2 #1017 rot #2218 PIT #1018 ccw #2219 RNG1 #1040 M_inch #2220 RNG2 #2049 type #2225 MTYP	Correctly set the parameters. Turn the power on again‚ and perform zero point initialization.		Required	−	−
0004	The zero point initialization point is not at the grid position.	Reperform zero point initialization.		Required	−	−
0005	Restoration was possible with parameter input in the above No.0002 state.	Turn the power on again‚ and operation will be possible.		Not required	−	−
0080	The absolute value data was lost, because the multi-rotation counter data in the detector was incorrect, etc.	Replace the detector and complete zero point initialization.		Required	−	(9E) etc.
0101	The power was turned ON again after the servo alarm No. 25 displayed.	Reperform zero point initialization.		Required	−	(25)
0106	The power was turned ON again after the servo alarm No. E3 displayed.	Reperform zero point initialization.		Required	−	(E3)

Note: To release alarm “Z70 ABS. ILLEGAL”, enter the parameter data output when establishing the absolute position and turn ON the power again. For the rotation axis, however, the alarm cannot be released by entering the parameter data.

Z71 DETECTOR ERROR (Error No.) (Axis name)			This alarm is displayed if an error is found in the detector for the absolute position detection system.
Error No.	Details	Remedy	Zero point initialization	Alarm reset when power is turned OFF	Servo alarm No.
0001	The backup voltage in the absolute position detector dropped.	Replace the battery‚ check the cable connections‚ and check the detector. Turn the power ON again‚ and perform zero point initialization.	Required	− (Z70-0101 displays after power is turned ON again.)	25
0003	Communication with the absolute position detector was not possible.	Check and replace the cables‚ card or detector. Turn the power ON again‚ and perform zero point initialization.	(Required) Only when detector is replaced.	Reset	91
0004	The absolute position data fluctuated when establishing the absolute position.	Check and replace the cables‚ card or detector. Turn the power ON again‚ and perform zero point initialization.	(Required) Only when detector is replaced.	Reset	93
0005	An error was found in the serial data from the absolute position detector.	Check and replace the cables‚ card or detector. Turn the power ON again‚ and perform zero point initialization.	(Required) Only when detector is replaced.	Reset	92
0006	Servo alarm E3 Absolute position counter warning	Operation is possible until the power is turned off.	(Required) When power is turned ON again.	Reset (Z70-0106 displays after power is turned ON again.)	E3
0007	Initial communication with the absolute position detector was not possible.	Check and replace the cables‚ card or detector. Turn the power ON again‚ and perform zero point initialization.	(Required) Only when detector is replaced.	Reset	18

Z72 COMPARE ERROR (Alarm No.) (Axis name)		This alarm is displayed if an error is detected when comparing the detector’s absolute position and controller coordinate values in the absolute position system.
Alarm No.	Details		Remedy

Z73 ABS. WARNING (Warning No.) (Axis name)		This displays a warning in the absolute position detection system.
Alarm No.	Details		Remedy
0001	Servo alarm 9F Battery voltage drop		The battery voltage dropped or a cable is broken. Absolute position initialization is not required.

1.7 Messages During Emergency Stop

1.7 Messages During Emergency Stop

EMG EMERGENCY Error items Refer to the explanations for details.
Error No.	Details	Remedy
PLC	The user PLC has entered the emergency stop state during the sequence process.	• Investigate and remove the cause of the user PLC emergency stop.
EXIN	The emergency stop input signal is significant (open).	• Cancel the emergency stop input signal. • Check the wiring to see if any wiring is broken.
SRV	An alarm occurred in the servo system causing an emergency stop.	• Investigate and remove the cause of the servo alarm.
STOP	The user PLC (ladder sequence) is not running.	• Check if the rotary switch CS2 on the top of the controller front panel is set to 1. • Check if the PLC edit file save screen (onboard function) [4RUN/SP] (run/stop) switch is turned ON.
SPIN	Spindle amplifier not mounted The spindle amplifier is not mounted.	• Cancel the causes of the other emergency stop. • Check emergency stop signal input in the spindle amplifier.
PC_H	High-speed PC processing abnormal	• Check the sequence program. (To stop monitoring the high-speed PC processing temporarily, set 1 in #1219 aux03 bit1. Disable the monitoring function only as a temporary measure.)
PARA	Setting of the door open II fixed device is illegal. The dog signal random assignment parameter setting is illegal.	• Specify the #1155 DOOR_m and #1156 DOOR_s parameters correctly. (When the door open II fixed device is not used, set #1155 DOOR_m and #1156 DOOR_s to 100.) • Correctly set the #2073 zrn_dog, #2074 H/W_OT+, #2075 H/W_OT-and #1226 aux 10 bit 5 parameters.
LINK	If the FROM/TO instruction is not executed within 500 ms, an emergency stop occurs.	• Try to execute the FROM or TO instruction one or more times every 500 ms. * Measure the time in which no interrupt request is issued from MELSEC and store the result in the R register. R1880: Current time-out counter R1881: Counter for maximum time-out after power-on R1882: Counter for maximum time-out after system start-up (backed up)

1.7 Messages During Emergency Stop

Error No.	Details	Remedy
LINK	MELSEC is held in error and reset states.	• Check the MELSEC states.
	The contents of MELSEC-specific code area in buffer memory have been destroyed.	• Check the MELSEC states.
	PLC serial link communication has stopped. Note: When WAIT is entered for the PLC serial link, only the preparation sequence has been established before the communication stops. Therefore, it is supposed that the basic specification parameters related to serial link parameters #1902 and #1903 are incorrect or the #1909 set-time "Tout (ini)" is too short.	• Check that HR571 card wiring and external sequencer transmission are normal. • Check the diagnostic screen for link communication errors. • Check whether the basic specification parameters related to serial link parameters are specified correctly.
WAIT	The preparation sequence is not sent from the master station. Otherwise, the contents of the received preparation sequence are inconsistent with those of the parameters, so that the usual sequence cannot be started. Note: When LINK is also entered for the PLC serial link, refer to "Note" in the section, "LINK".	• Check that the HR571 card rotary switch and wiring and the external sequencer transmission are normal. • Check the diagnostic screen for link communication errors.
XTEN	The HR571 card operates abnormally or the rotary switch is set incorrectly.	• Check the HR571 card rotary switch and replace the HR571 card if required.
LAD	The user PLC (ladder sequence) has an illegal code.	• Check the user PLC (ladder sequence) to see if it uses illegal device numbers or constants.

1.8 Auxiliary Axis Alarms

Display example

S01 AUX SERVO ALM

Axis No. 1 to 4

Alarm information

(Follows MR-J2-CT alarm information)

(1) S01 AUX SERVO ALM

Alarm information	Details		Remedy
0011	PCB error 1	An error occurred in the amplifier's internal PCB.	• Replace servo amplifier.
0013	Software processing timeout, clock error	An error occurred in the amplifier's internal reference clock.	• Replace servo amplifier.
0016	Motor type, detector type error	Motor type error	• Use a correct amplifier and motor combination.
		Detector initial communication error.	• Connect correctly. • Replace the motor. • Replace or repair cable.
		Detector CPU error	• Replace the motor (detector).
0017	PCB error (A/D conversion initial error)	An error occurred in the amplifier's internal A/D converter.	• Replace servo amplifier.
0025	Absolute position lost	An error occurred in the detector's internal absolute position data.	• Turn the power ON for 2 to 3 minutes while the alarm is occurring, and then turn the power ON again. • Replace the battery, and initialize the absolute position again.
0034	CRC error	An error occurred in the communication with the NC.	• Take countermeasures against noise.
0036	Communication timeout, NC down	Communication with the NC was cut off.	• Connect correctly. • Turn the NC power ON. • Replace the amplifier or NC.
0037	Parameter error (Regenerative resistance error)	The parameter setting value is incorrect.	• Set the parameter correctly.
0038	Frame error	An error occurred in the communication with the NC.	• Take countermeasures against noise.
0039	INFO error	Undefined data was transferred from the NC.	• Change the NC software version to a compatible version.

(2) S02 AUX SERVO ALM

Alarm information	Details		Remedy
0011	PCB error 1 (drive circuit error)	An error occurred in the amplifier's internal PCB.	• Replace servo amplifier.
0013	Software processing timeout, clock error	An error occurred in the amplifier's internal reference clock.	• Replace servo amplifier.
0015	EEROM error	A write error occurred to the EEROM in the amplifier.	• Replace servo amplifier.
0017	PCB error (A/D conversion error)	An error occurred in the amplifier's internal A/D converter.	• Replace servo amplifier.
0018	PCB error (LSI error)	An error occurred in the amplifier's internal LSI.	• Replace servo amplifier.
0020	Detector error	An error occurred in the communication between the servo amplifier and detector.	• Connect correctly. • Replace or repair cable.
0024	Ground fault detection	A ground fault of the output was detected when the power was turned ON.	• Repair the ground fault section. • Replace the cable or motor.

(3) S03 AUX SERVO ALM

Alarm information	Details		Remedy
0010	Undervoltage	The power voltage is 160V or less.	• Review the power supply. • Replace the servo amplifier.
0030	Regeneration error	The tolerable regeneration power of the internal regenerative resistor or external regenerative option was exceeded.	• Set the parameter #002 correctly. • Connect correctly. • Lower the positioning frequency. • Change the regenerative option to a larger capacity. • Lower the load. • Review the power supply.
0030	Regeneration error	Regenerative transistor error	• Replace the servo amplifier.
0031	Overspeed	The motor's rotation speed exceeded the tolerable momentary speed.	• Increase the acceleration/ deceleration time constant. • Review the gear ratio. • Replace the detector.
0032	Overcurrent	A current exceeding the servo amplifier's tolerable current flowed.	• Repair the wiring. • Replace the servo amplifier. • Take countermeasures against noise.
Alarm information	Details		Remedy
0033	Overvoltage	The voltage of the converter in the servo amplifier was 400V or more.	• Wire correctly. • Replace the servo amplifier. • For the internal regenerative resistor, replace the amplifier. • For the external regenerative option, replace the regenerative option.
0046	Motor overheating	An operation state causing the motor to overheat continued.	• Reduce the motor load. • Review the operation pattern.
0050	Overload 1	The servo amplifier or servomotor overload protection function activated.	• Reduce the motor load. • Review the operation pattern. • Change to a motor or amplifier with large output. • Change the setting of the automatic tuning response characteristics. • Correct the connection. • Replace the servomotor.
0051	Overload 2	The max. output current flowed for several seconds due to a machine collision or overload.	• Review the operation pattern. • Change the setting of the automatic tuning response characteristics. • Correct the connection. • Replace the servomotor.
0052	Excessive error	A position deflection exceeding the excessive error detection setting value occurred.	• Increase the acceleration/ deceleration time constant. • Increase the torque limit value. • Review the power facility capacity. • Review the operation pattern. • Replace the servomotor. • Connect correctly. • Repair or replace the cable.

(4) S52 AUX SERVO WRN

Alarm information	Details		Remedy
0092	Battery voltage drop	The absolute position detection battery voltage dropped.	• Mount a battery. • Replace the battery and initialize the absolute position.
00E0	Over-regeneration warning	The regeneration power may have exceeded the tolerable range of the built-in regenerative resistor or external regenerative option.	• Lower the positioning frequency. • Change the regenerative option to a larger one. • Lower the load.
00E1	Overload warning	The overload alarm 1 could occur.	• Refer to the items for S03 0050.
00E3	Absolute position counter warning	There is an error in the absolute position detector internal data.	• Take countermeasures against noise. • Replace the servomotor.
00E9	Main circuit OFF warning	The servo ON signal was input while the main circuit power was OFF. The contactor operation is faulty.	• Turn ON the main circuit power.

(5) Z70 AUX POS. ERR

Alarm information	Details	Cause	Remedy
0001	Zero point initialization incomplete	The zero point (reference point) has not been initialized in the absolute position system.	• Initialize the zero point (reference point).
0002	Absolute position data lost	The absolute position coordinate data in the amplifier has been lost.	• Initialize the zero point (reference point).
0003	Absolute position system related parameter error	The absolute position system related parameters have been changed or lost.	• Correctly set the parameters and then initialize the zero point (reference point).

(6) Z71 AUX DETEC. ERR

Alarm information

Details

Cause

Remedy

0001

Absolute position memory battery voltage drop

The data in the detector has been lost.

Battery voltage drop.

Detector cable wire breakage or looseness.

• Check the battery and detector cable and then initialize the zero point (reference point).

(7) Z73 AUX SYSTEM WRN

Alarm information

Details

Cause

Remedy

0001

Absolute position memory battery voltage warning

Battery voltage drop.

Detector cable wire breakage or looseness.

• Check the battery and detector cable. The zero point does not need to be initialized.

0003

Absolute position counter warning

An error occurred in the detector's absolute position counter.

• Replace the detector.

(8) M00 AUX OPER. ALM

Alarm information	Details	Cause	Remedy
0001	Near-point dog length insufficient	When executing dog-type reference point, the zero point return speed is too fast or the dog length is too short.	• Lower the zero point return speed or increase the dog length.
0003	Reference point return direction illegal	When executing reference point return, the axis was moved in the opposite of the designated direction.	• Move the axis in the correct direction.
0004	External interlock	The axis interlock function is valid.	• Cancel the interlock signal
0005	Internal interlock	An interlock was established by the servo OFF function.	• Cancel the servo OFF.
0007	Soft limit	The soft limit was reached.	• Check the soft limit setting and machine position
0024	In absolute position alarm. Reference point return not possible.	Reference point return was executed during an absolute position alarm.	• Initialize the absolute position reference point and then fix the absolute position coordinates.
0025	In initializing absolute position. Reference point return not possible.	Reference point return was executed while initializing the absolute position.	• Initialize the absolute position reference point and then fix the absolute position coordinates.

(9) M01 AUX OPER. ALM

Alarm information	Details	Cause	Remedy
0101	No operation mode	The operation mode is not designated, or the operation mode was changed during axis movement.	• Correctly designate the operation mode.
0103	Feedrate 0	The operation parameter's feedrate setting is zero. The operation parameter feedrate setting is zero. Or, the override is valid, and the override value is zero.	• Set a value other than zero in the feedrate setting or override value.
0160	Station No. designation illegal. Starting not possible.	A station No. exceeding the No. of indexed divisions was designated.	• Correctly designate the station No.
0161	Reference point return incomplete. Starting not possible.	Automatic/manual operation was started before reference point return was executed with the incremental system.	• Execute the reference point return.
0162	In initializing reference point. Starting not possible.	The start signal was input while initializing the absolute position reference point.	• Complete the absolute position reference point initialization.
0163	In absolute position alarm. Starting not possible.	The start signal was input during an absolute position alarm.	• Initialize the absolute position reference point and then fix the absolute position coordinates.
0164	In random positioning mode. Manual operation not possible.	The manual operation mode was started during the random positioning mode.	• Turn the random positioning mode OFF before switching to the manual operation mode.
0165	Uneven indexing station No. illegal. Starting not possible.	The commanded station No. was higher than 9 or the number of indexing stations during uneven indexing.	• Check the commanded station No. and the parameter “#100 station” setting.

AUXILIARY AXIS MCP ALARMS

Y02 AUX SYSTEM ALM			An error occurred in the data transmitted between the MCP and auxiliary axis amplifier after the power was turned ON.
Error No.	Details			Remedy
0050	Background error			The software or hardware may be damaged. Contact the service center.
0051	0000	CRC error (10 times/910.2ms)		A communication error has occurred between the controller and amplifier. • Take measures against noise. • Check that the communication cable connector between the controller and amplifier and one between the amplifiers are tight. • Check whether the communication cable between the controller and amplifier and one between the amplifiers are disconnected. • A driving amplifier may be faulty. Take a note of the 7-segment LED contents of each driving amplifier and report to the Service Center.
	0001	CRC error (2 continuous times)
	0002	Reception timing error (2 continuous times)
	××03	Data ID error (2 continuous times) ××: Axis No.
	××04	No. of reception frames error (2 continuous times) ××: Axis No.

Y03 AUX AMP UNEQU. The amplifier is not correctly connected.		Check the auxiliary axis amplifier mounting state. • Check the end of the cable wiring. • Check the cable for broken wires. • Check the connector insertion. The auxiliary axis amplifier input power is not being input. The auxiliary axis amplifier axis No. switch is illegal.
Error No.	Details
Axis No.1 to 4	bit correspondence (bit 0 : 1st axis, bit 1: 2^nd axis, bit 2: 3rd axis, bit 3: 4th axis)

1.9 Computer Link Errors

1.9 Computer Link Errors

Error Message	Error No.	Details	Remedy
L01 DNC ERROR	-4	Communication ends with timeout. CNC has a 248-byte receive buffer. The time during which CNC receives 248 bytes exceeds the “TIME-OUT” value set in the I/O device parameter.	1) Set a greater timeout value in the input/output device parameter. 2) Recheck the HOST software as to whether or not the HOST transmits data in response to DC1 from CNC (data request). 3) Check whether or not start code of computer link parameter is set to 0.
	-10	HOST ER (CNC DR) signal is not turned ON.	1) Check whether or not the cable is disconnected from the connector. 2) Check whether or not the cable is broken. 3) Check whether or not the HOST power is turned ON.
	-15	Communication ends with parity H.	1) Recheck the HOST software as to whether or not the data to be transmitted to CNC is ISO code.
	-16	Communication ends with parity V.	1) Recheck the data to be transmitted to CNC.
	-17	Although CNC transmits DC3 (request to stop data transfer) to the HOST, it receives data of 10 bytes or more from the HOST, thus terminates communication. When CNC is transmitting data to the HOST, it receives data of 10 bytes or more from the HOST.	1) Recheck the software as to whether or not the HOST stops transmitting data within 10 bytes after receiving DC3. 2) Recheck the HOST software as to whether or not the HOST transmits data such as a command or header to CNC during receiving a work program.

1.10 User PLC Alarms

1.10 User PLC Alarms

Message	Sub-status		Details	Remedy
Message	1	2	Details	Remedy
U01 No PLC	-	-	The ladder is not a GPPW ladder or PLC4B ladder. (Note) Emergency stop (EMG) will be applied.	Download the ladder of the format selected with the PLC environment selection parameters (bit selection #51/bit 4).
U10 Illegal PLC	0x0010	-	Scan time error The scan time is 1 second or longer.	Edit the ladder size to a smaller size.
	0x0040	-	Ladder operation mode illegal A ladder different from the designated mode was downloaded. (Note) Emergency stop (EMG) will be applied.	Download the ladder having the same format as when the power was reset or turned ON.
	0x0080	-	GPPW ladder code error (Note) Emergency stop (EMG) will be applied.	Download the correct GPPW format ladder.
	0x008x	-	PLC4B ladder code error An illegal circuit was found in the PLC4B ladder. bit1: PC medium-speed circuit illegal bit2: PC high-speed circuit illegal (Note) Emergency stop (EMG) will be applied.	Download the correct PLC4B format ladder.
	0x0400	Number of ladder steps	Software illegal interrupt The ladder process stopped abnormally due to an illegal software command code. (Note) Emergency stop (EMG) will be applied.	Turn the power ON again. If the error is not reset, download the correct ladder.
	0x800x	Number of ladder steps	Software exceptional interrupt The ladder process stopped abnormally due to a bus error, etc.
			bit 0: BIN command operation error bit 1: BCD command operation error	Refer to the methods for using the BCD and BIN function commands.
			bit6: CALL/CALLS/RET command error bit7: IRET command execution error (Note) Emergency stop (EMG) is applied for bit 6/7.	Turn the power ON again. If the error is not reset, download the correct ladder.
U50 Stop PLC			The ladder is stopped.	Start the ladder.

(Note) The number of ladder steps displayed on the screen may not match the actual number of error occurrence steps because of the ladder timing. Use this as a guideline of the occurrence place.

1.11 Network Service Errors

1.11 Network Service Errors

Message	Details	Remedy
N001 Modem init err	• There is an error in the modem connection when the power is turned ON.	• Check the connection between the NC and modem, connection port and modem power.
N002 Redial over	• The dial transmission failed more than the designated No. of redial times.	• Wait a while, and then transmit again.
N003 TEL unconnect	• The phone line is not connected.	• Check the modem's phone line connection.
N004 Net com. error	• An error other than the above errors occurred during communication.	• Note down the circumstances under which this error occurred, and contact the Service Center.
N005 Bad net com.	• The modem connection port is being used for another function such as input/output. • The modem connection port settings are incorrect.	• Quit using the modem connection port with the other function, and then turn the power ON again. • Check the modem connection port settings.

2. Operation Messages on Setting And Display Unit

If a setting operation error occurs on any setting and display unit screen‚ the error No. EOO and a message describing the details of the error will display in the line above the data setting area or the menu display area.

2.1 Operation Errors

∆: Message requiring resetting and restarting

×: Message requiring restarting after canceling error conditions (The bold characters are the messages displayed on the screen.)

Error No.

Error message

Details

E01

SETTING ERROR

∆

• The setting data is incorrect. An alphabetic character was set when only number can be set‚ etc.

• Data was input without setting number (#).

(Word editing)

• Even though no retrieval data was set, menu key [ ↓ ] or [ ↑ ] was pressed.

• Even though no data is stored in edit buffers, menu key “Replace” was pressed.

• One of the following characters was entered as the first character of the retrieval data and edit buffers: 0 to 9, ". ", " " (space), "+", "−", "=","*", "[ ]", and “ " " ”.

• When the incremental detection system was used, the parameter (#0 absolute position setting) was set on the absolute position setting screen.

• The data input for the standard parameter setting or during execution of formatting is not "Y" or "N".

• A value from 4 to 10 was specified for #1043 lang. Or 21 was specified.

• Even though no language data exists, its output and comparison were attempted. Check the numbers (0253 and 0254) of the language data to be output.

• When the machine manufacturer macro program memory area is the SRAM area, the setup parameter #1060 SETUP was set to

“20”.

• When the machine manufacturer macro program memory area is the SRAM area, writing of the machine manufacturer macro program was attempted on PROGRAM COPY screen.

Error No.	Error message		Details
E02	DATA OVER	∆	• The setting data exceeded the setting range.
			• The compensation data specification exceeded the range when inputting the tool offset data on tape‚ so that block could not be input. Press the INPUT key again while the input screen is displayed‚ and the input will continue from the next block.
			• When workpiece coordinate offsets are measured, the calculation results given by pressing the CALC key are exceeding the specified range. Correctly specify the tool length or the wear data of cutting edges used for the calculation.
			• #1003 iunit was set to D when the least command increment 0.01µm option was not available.
			• When there was no option, 2 or more was specified for #1043 lang. Otherwise, an option was added and 24 or more was specified for #1043 lang.
E03	No. NOT FOUND	∆	• The corresponding setting No. (#) was not found. This error occurs if a setting No. not found on the screen was set and input‚ or if a variable No. not found in the specifications was set and input for the common variables. • When the tool length was measured manually, a nonexisting tool wear compensation number was specified and the sensor was turned ON. Specify the R register of the offset number correctly.
E04	DEV. NOT READY	×	• The input/output unit power is not ON. • The cable is disconnected. • Setting of the transfer speed (baud rate) does not agree.

Error No.

Error message

Details

E05

NOT

ACCEPTABLE

• The PLC timer cannot be set from the screen when the program is valid. (When machine parameter bit selection #6449 bit 1 is set to 1.)

• The PLC counter cannot be set from the screen when the program is valid. (When machine parameter bit selection #6449 bit 0 is set to 1.)

• The tool registration data setting is prohibited. (When special relay E71 is valid by the PLC.)

• Setting from the tool life management screen is prohibited.

• Absolute position setting screen's #1 "ORIGIN" and #2 "ZERO" cannot be set when #0 "INIT SET" is invalid.

• The total of axes set in #1001 SYS_ON‚ #1002 axisno is illegal. Set so that the total No. of axes is within the specifications range for the target model.

• #1037 cmdtyp is not within the setting range.

• The INPUT key was pressed to perform search for the program that is in background edit status on the word edit screen.

• The menu keys (Replace and Insert) on the word edit screen were manipulated when a running program is displayed (PDISP signal: ON).

• An attempt was made to set MDI data in an MDI setting lock state (the MDI setting lock parameter is specified with 0 and a non-MDI mode is valid).

• Language data in display selection status was entered. Change the display selection status once before entering the data.

(#1043 lang)

• When the manual value command protection (#1228 aux12/bit7) function is valid, the first monitor screen was manipulated by manual command operation (M, S, and T keys).

E06

NO SPEC

• The menu key for a function not in the specifications was pressed.

• A parameter not in the specifications was set.

• A language that was not added as an option was selected. (#1043 lang)

• Set up parameter #1049 mmac_R was set to “1” when the machine manufacturer macro option was not valid.

• Set up parameter #1060 SETUP was set to “20” when the machine manufacturer macro option was not valid.

• Writing of the machine manufacturer macro program with the PROGRAM COPY screen was attempted when the machine manufacturer macro option was not valid.

Error No.	Error message		Details
E07	RESET END	∆	• The input/output operations were forcibly stopped by reset‚ etc. (including EMG).
E08	PHYSICAL ERR	×	• The input/output parameter setting or input/output unit side setting was incorrect.
E09	TIME OUT	×	• The input/output unit parameter "#9116 TIME-OUT SET" setting was too short. • There is no EOB code in the machining program.
E10	MEMORY OVER	×	• The program cannot be written because the memory capacity is exceeded. • This error occurs when the MDI data setting on the MDI screen exceeds 500 characters‚ or when saving MDl‚ editing or making a program on the edit screen‚ input on the data input/output screen‚ program copy‚ etc.
E11	PROG. No. DUPLI	∆	• When registering a machining program in the memory‚ a program with the same No. as the designated program No. was found in the memory. Refer to the program file to find a program No. not being used‚ and reset the program No. • A program with the same No. as the machining program to be copied from the memory was found in the IC card. • This error occurs during MDI registration in the MDI screen or during creation of a program in the edit screen.
E12	FILE ENTRY OVER	×	• When registering a machining program in the memory‚ the No. of programs determined in the specifications is exceeded‚ preventing registration. This error occurs during MDI registration in the MDI screen‚ creation of a program in the edit screen‚ data input in the data input/output screen‚ and program copy.
E13	NB NOT FOUND	∆	• The block with the designated sequence No. or block No. does not exist in the designated program.
E14	PROG. NOT FOUND	∆	• The designated program is not found in the memory. • The corresponding program No. was not found with search of tape memory during graphic check.
E15	EDIT LOCK B	×	• An operation (edit‚ input/output‚ buffer correction‚ transmit, delete, etc.) inhibited for machining program B was attempted.
E16	EDIT LOCK C	×	• An operation (edit‚ input/output‚ buffer correction‚ transmit, delete, etc.) inhibited for machining program C was attempted.

Error No.	Error message		Details
E17	PARITY H ERR	×	• A parity H error was detected during data input‚ etc. • Check the paper tape or input device. This error may occur if the paper tape is dirtied with oil‚ etc.
E18	PARITY V ERR	×	• A parity V error was detected during data input. • Check the paper tape to see whether the number of characters in the significant information section of a block is odd. • Also check the state (cable wiring‚ noise measures‚ etc.) of the connected equipment.
E21	PROGRAM RUNNING	×	• Deletion of a machining program was attempted during operation. • Search was attempted during operation. • Change of data such as parameters was attempted during operation. • Start of graphic check was attempted during operation. • When using the two systems, the program being buffer corrected was running with the other system. • Erasing or inputting (IC → NC) of a program in the IC card being used was attempted. • Formatting of the IC card was attempted during automatic start. • Accessing to the host computer was attempted during automatic operation.
E22	CODE CHANGE ERR	×	• There was an illegal code on the paper tape.
E24	PLC RUN	×	• Data input/output or comparison was attempted when the PLC was not stopped. • Analog output adjustment was attempted when the PLC was not stopped. • An attempt was made to input or output language data during PLC execution. • When the machine manufacturer macro program memory area was set to the FROM area, formatting of the FROM area (#1060 SETUP “20”) was attempted when the PLC was not stopped, writing of the machine manufacturer macro program was attempted on the PROGRAM COPY screen, or input of the macro program was attempted. (Measures) Stop the PLC. • Set the control unit rotary switch to 1. • Set the onboard file screen RUN/STOP setting to 1.

Error No.	Error message		Details
E25	DATA MEMORY ERR	×	• When inputting the tool offset data onto tape‚ an offset type exceeding the specifications range was designated‚ and that block could not be input. If the INPUT key is pressed again in the input screen‚ the input will continue from the next block.
E26	NO CHARACTERS	∆	• The designated character string was not found from the block displayed on the screen to the end of the program when searching with data search in the edit screen. Press the INPUT key again’ and the search will start at the head of the program.
E35	COMPARE ERROR	×	• An inconsistency was found in the paper tape and memory data during comparison.
E40	OP MODE ERROR	×	• Continuous or step graphic check was not possible because the operation mode was illegal.
E50 E51 E52 E53 E54 E55 E56	FILE ERR FILE OPEN ERR FILE CLOSE ERR FILE SEEK ERR FILE READ ERR FILE DELETE ERR FILE INSERT ERR	×	• If one of these errors occurs‚ the editing or input/output operations cannot be continued. Contact the Service Center. As for E50‚ a classification No. will display at the end of the message. Inform the service center of this No. as well. E55 is also displayed when deleting the system configuration data "ASSEMBLY.INF" of NC memory was attempted on host screen. The system configuration data cannot be deleted.

	Error No.		Error message				Details
	E60		IOP ERR		×		A classification number is displayed after the message for E60. Refer to the section shown in parentheses‚ and remedy the problem. E60 lOP ERROR - 2 (Port already being used) E60 lOP ERROR - 4 (E09 TIME OUT) E60 lOP ERROR - 5 (E08 PHYSICAL ERR) E60 lOP ERROR - 7 (E07 RESET END) E60 lOP ERROR - 10 (E04 DEV. NOT READY) E60 lOP ERROR - 15 (E17 PARITY H ERR) E60 lOP ERROR - 16 (E18 PARITY V ERR) E60 lOP ERROR - 17 (E20 OVER RUN ERR) E60 lOP ERROR - 18 (E22 CODE CHANGE ERR) E60 IOP ERROR - 20 (framing and H/W errors) • Setting for the bit length is incorrect. (Baud rate, stop bit, and character length) Check the setting of the I/O device system and its parameters and set it again. • Check the situations of the connected devices (cable wiring and noise measures). • Data was input/output or the tape search was executed during the host link. Set 0 in #8109 HOST LINK, and then set 1 again before performing the cycle start. (IOP error -2) • The host link parameter was turned ON during connecting to the Anshin-net. Turn the Anshin-net valid OFF. (IOP error -2) • When #10812 Anshin-net/ Machine builders network system valid is set to 1, the modem connection port of the Anshin-net or machine builders network system is occupied. Perform inputting or outputting using a port other than the modem connection port. (IOP error -2) • When connecting the GX Developer (when the bit selection parameter #6451 bit5 is set to 1), the port 2 of the RS232C communication port is always used. Use a port other than the port 2 of the RS232C communication port. (IOP error -2) • When "#10812 Anshin-net/Machine builders network system valid" is set to 1, the system configuration data output cannot be used. When carrying out the system configuration data output, "#10812 Anshin-net/Machine builders network system valid" is set to 0. (IOP error -2)
Error No.		Error message				Details
E62		I/O PARAM ERR		∆		• The "EIA code" data set for I/O parameter is of an unusable code. • The unusable codes are those used as the EIA standard codes and the even hole codes. • System configuration data output operation was executed without using the data ASCII. Set "0" to EIA output, "1" to data ASCII in the I/O device parameters.
E64		PROGRAM No. ERR		∆		• The same No. as the program No. designated for program copy was found in the memory. • During tape input‚ the first character of the machining program block is the program No. address "O" or "L".
E65		PROG. No. DUPLl		∆		• During tape input‚ the same No. as the specified program was found in the memory.
E66		NO PROG. NUMBER		∆		• During tape input‚ the program No. was not found on the paper tape‚ and a program No. was not designated on the screen's data setting area. Set the program No.‚ and input again.
E69		PROG. CHECK MODE		×		• Search (operation search) was attempted during program check (continuous or step). • Retry search after the program check is completed‚ or after resetting the program search
E70		TOOL No. DUPLl		∆		• A tool No. already registered was newly registered on the tool life management screen.
E71		TOOL ENTRY OVER		×		• Registration of data exceeding the max. No. of registerable tools was attempted on the tool life management screen. • When inputting the tool offset data onto tape‚ a compensation number exceeding the specifications range was specified‚ and that block could not be input. If the INPUT key is pressed again in the input screen, the input will continue from the next block.
E73		CAN’T CALCULATE		×		• The coordinate value of the hole center cannot be obtained. • Reset the measurement point, which must not applied to the following conditions. The measurement A point is the same as the Y coordinate of the C point. The measurement B is the same as the Y coordinate of the C point. The slope of the line through A and C point is the same as the slope of the line through B and C point.
E74		MENU IMPOSSIBLE		×		• Press the operation menu "= Input" or "+ input" during the tool measurement. • Press the operation menu "= Input" or "+ input" during the manual value command mode. • Press the screen selection menu on which "↓" is displayed during the tool measurement. • Press the screen selection menu on which "↓" is displayed during the manual value command mode.

Error No.	Error message		Details
E75	TLM ILL. SIGNAL		• The sensor signal was already ON when the tool measurement mode (TLM) signal was validated. • After the tool measurement mode (TLM) signal was validated, the sensor signal turned ON when there was no axis movement. • The sensor signal turned ON at a position within 100µm from the final entry start position. • Turn the tool measurement mode signal input OFF, or turn the sensor signal OFF and move the axis in a safe direction. (Note) This display will be erased when another screen is opened. The display will not be erased even if the tool measurement mode signal input is turned OFF, or if the axis is moved in a direction away from the sensor.
E76	TOOL No. ERROR	×	• The offset No. to be used for workpiece coordinate system offset data measurement was invalid. Restart from tool selection. (Correctly specify the R register that contains the offset number.)
E77	AXIS No. REF-RET	×	• Zero point return has not been completed for the axis being measured. Return the axis to the zero point.
E78	AX UNMATCH (TLM)	×	• During movement of two or more axes‚ the sensor turned ON and the tool length was measured. Keep off from the sensor and perform the measurement for one axis at a time.
E79	NO REF-RTN (TLM)	×	• The sensor turned on for an axis that has not completed dog-type reference point return‚ and the tool length was measured. Return the axis to the zero point.
E80	TOP SEARCH ERR	×	• The program head search (unmodal type search) was not executed before type 2 (standard specification) restart search was executed for program restart. Set the type to unmodal, search for the head of the program, and then search for the restart block with type 2.
E82	ALREADY RESEARCH	×	• After completing the type 1 or type 2 search for program restart, the unmodal type, type 1 or type 2 search was attempted again. If program restart is continued (if the axis is return to the restart position with automatic or manual operations), the program will restart from the block searched for first. To search again, cancel the previous search by resetting, and then search again.
E84	CAN’T IN/OUT	×	• An attempt was made to input a parameter in the setup parameter locked state. Refer to the manual issued by the machine manufacturer. • The parameter "#1925 EtherNet" of the high-speed program server function is set to 0. • When writing data to the IC card, the file name is illegal. (Exceeding 8 characters of file name + 3 characters of extension.) • Input of maintenance data from the host or IC card was attempted.

Error No.	Error message		Details
E86	INPUT DATA ERR	×	• When inputting the tool offset data‚ the data format was not correct‚ so that block could not be input. • If the INPUT key is pressed again in the input screen‚ the input will continue from the next block. • When data is read from parameter tape, its format is incorrect. • The format of file written to the NC memory is illegal.
E87	NOT EDIT PROG.	×	• Playback edit was executed for a fixed cycle subprogram. Playback edit of a fixed cycle subprogram is not possible.
E88	CAN’T ADD BLOCK	×	• Playback edit cannot be executed unless the block being edited with playback is displayed to the end (EOB) on the left side of the machining program display area. Press the cursor key ↓ ‚ and display the whole block to the end. Then‚ input the data.
E91	MODE ERROR (PBK)	×	• G90 was set when "PB_G90" was OFF. • G91 was set when "PB_G90" was ON.
E98	CAN’T RESEARCH	×	• When restarting the program, the type 3 restart search was attempted with a program containing no T command. Check the program. • When restarting the program, the T command corresponding to the type 3 restart search was not found in the program. Check the program. • When restarting a program for 2-systems, restart search was performed simultaneously for the 1st and 2nd systems, and then the 2nd system was searched again. If program restart is continued (if the axis is return to the restart position with automatic or manual operations), the program will restart from the block searched for first. To search again, cancel the previous search by resetting, and then search again. • When carrying out program restart, restart search 2 was executed during MDI mode. Change to the memory or tape, and search again. • When carrying out program restart, type 3 restart search was attempted while the machine was at the negative (-) side of the restart limit parameters. Manually move the machine to the positive (+) side of the restart limit parameters, and search again.
E165	AUX RUNNING	×	• The keys other than Function/Menu/Previous page/Next page were pressed in Auxiliary monitor screen during auxiliary axis operation.
E190	FORE EDITING	×	• An attempt was made to perform background search for the program that is in foreground search status. (Word editing)
E191	NOT COM. SEARCH	×	• Operation search was attempted in tape mode.
E200	ADJUST ERROR	×	• The hardware status can’t be read correctly‚ so automatic adjustment was not possible. • Check the remote l/O unit. • A Z55 RIO NOT CONNECT occurred. • Adjust manually. • Unit defect (replace unit)

Error No.	Error message		Details
E201	UNIT NOT EQUIP	×	• The analog output unit is not mounted. • Confirm the remote l/O unit. • Prepare a unit having analog output. • Check the connection (power and signal wires) • Unit defect (replace unit)
E301	CONNECT ERROR	×	• A socket connection attempt failed during Ethernet communication. • Check the host address, the setting of the port No. and that the host computer is turned ON.
E302	LOGIN ERR	×	• A login attempt failed during Ethernet communication. Check the user name and password. • Check the account settings, such as the home directory.
E303	TIME OUT	×	• Transmission of a file with Ethernet communication ended because of timeout.
E311	DOWNLOAD ERR	×	• An attempt to read a host file failed during Ethernet communication.
E312	UPLOAD ERR	×	• An attempt to write to a host file failed during Ethernet communication.
E313	NO FILE	×	• The file specified by host receive (host → IC) operation during Ethernet communication is not found in the host. • The file specified by host send (IC → host) operation during Ethernet communication is not found in the IC card.
E314	FILE DUPLICATE	×	• The file name specified to be stored by host receive (host → IC) operation during Ethernet communication already exists in the IC card. • The file name specified to be loaded by host send (IC → host) operation during Ethernet communication already exists in the host.
E315	FILE WRITE ERR	×	• An attempt to write to the IC card failed during Ethernet communication.
E316	FILE READ ERR	×	• An attempt to read a file from the IC card failed during Ethernet communication.
E317	MEMORY OVER	×	• IC card memory is full. • NC memory is full.
E318	OVER FLOW ERR	×	• A host directory contains too many files.
E319	DIRECTORY ERR	×	• An attempt to move a directory failed. • In the IC card device, accessing a directory in the nineteenth layer or more was attempted.
E320	HR437 UNEQU	×	• When backup or writing of the expansion cassette into/from the FROM, the expansion cassette (HR437) was not mounted in CBUS#1 or was incorrectly mounted. • When backup or writing of the expansion cassette into/from the FROM, a card other than the expansion cassette (HR437) was mounted in CBUS#1. • When the program memory was formatted to 1280m or more, the expansion cassette (HR437) was not mounted in CBUS#1.

2.2 Operator Messages

The following messages indicate the status of the setting and display functions‚ and are not operation errors. They are mainly used to show that operation is normal‚ and serve as guides for the following operations. There is no classification by numbers.

2.2.1 Search And Operation Related

Message	Message details
SEARCH EXECUTION	• Search is being executed normally.
SEARCH COMPLET	• Search was completed normally.
BUFFER EDIT	The buffer is being corrected. This appears when the cursor or a tab key is pressed and the buffer correction mode is entered. This is erased when INPUT is pressed.
CAN’T BUF. EDIT	When using 2 systems, the program being buffer corrected is being used by the other system. Buffer correcting of a machine manufacturer macro program was attempted.
DATA PROTECTING	Buffer correcting is prohibited since the data protection key 3 is valid.

2.2.2 MDI/Editing Related

Message	Message details
MDI NO SETTING	• Only display of MDI data (no execution)
MDI SETTING COMPLETE	• The MDI data setting has been completed (execution is now possible).
MDI ENTRY COMPLETE	• The MDI data was saved in the memory with the specified program No.
MDI RUNNING	• The NC is operating with an MDI program‚ and the MDI data cannot be corrected.
PUSH KEY SERCH/PROG	• Status in which no programs to be edited have been called on the editing screen. To edit‚ press the SEARCH or PROGRAM edit key.
EDITING	• The details of a program are being edited on the screen. Press INPUT to write the data in the memory.
PROGRAM RUNNING	• A machining program to be edited is currently being run with memory operation‚ and cannot be edited.
DELETE? (Y/N)	• Waiting for a key entry (whether to delete the program) in word edit status (when the background search menu is selected)
BACK GROUND EDITING	• Background edit mode
EDIT POSSIBLE	• Editing can be performed in foreground edit mode.
EDIT IMPOSSIBLE	• Editing cannot be performed in foreground edit mode. • This state also occurs during feed hold or fixed cycle mode (single-block stop).
WORD SEARCH FIN	• The word matching the search data was searched on word editing.

2.2.3 Data Input/Output Related

Message	Message details
DATA IN EXECUTION	• Data is being read without error from the paper tape.
DATA WRITING IN PROGRESS	• Data has been entered normally and the input data is being written to the ROM.
DATA IN COMPLETE	• Data has been stored without error.
COMPARE EXECUTION	• Comparison is being executed without error.
COMPARE COMPLETE	• Comparison has completed without error.
DATA OUT EXECUTION	• Data is being output without error.
DATA OUT COMPLETE	• Data has been output without error.
ERASE EXECUTION	• Data is being erased without error.
ERASE COMPLETE	• Data has been erased without error.
COPY EXECUTION	• The machining program is being copied without error.
COPY COMPLETE	• The machining program has been copied without error.
CONDENSE EXECUTION	• The machining program is being condensed without error.
CONDENSE COMPLETE	• The machining program has been condensed without error.
MERGE EXECUTION	• The machining program is being merged without error.
MERGE COMPLETE	• The machining program has been merged without error.
No. CHANGE EXECUTION	• The machining program No. is being changed without error.
No. CHANGE COMPLETE	• The machining program No. has been changed without error.

2.2.4 S-analog Output Adjustment Related

Message	Message details
ADJUST EXECUTION	• Analog output adjustment is being executed without error.
ADJUST COMPLETE	• Analog output adjustment has completed without error.

2.2.5 Auxiliary Axis

Message	Message details
CONTINUE Y/N	• Type “Y” or “N” to specify whether to perform operation.
BACKUP EXECUTION	• The auxiliary axis parameters are being backed up in SRAM.
BACKUP COMPLETE	• The backup of the auxiliary axis parameters in SRAM has been completed.
AUX. WRITING EXEC.	• The auxiliary axis parameters in SRAM is being written to MR-J2-CT.
WRITE COMPLETE	• The writing of the auxiliary axis parameters in SRAM to MR-J2-CT has been completed.
ABS POS RESTORED	• The absolute position in SRAM has been restored in MR-J2-CT.

2.2.6 Parameter Backup Related

Message	Message details
BACKUP EXEC. Y/N	Type "Y" or "N" to specify whether to perform the operation.
BACKUP EXECUTION	The parameters are being backed up.
BACKUP COMPLTE	Backup of the parameters has been completed.
RESTORE EXEC. Y/N	Type "Y" or "N" to specify whether to perform the operation.
RESTORE EXECUTION	The parameters are being restored.
RESTORE COMPLETE	Restoration of the parameters has been completed.

2.2.7 Others

Message	Message details
DATA PROTECTING	• The data protection key is valid‚ and the various data cannot be set or erased‚ etc.
BASE PARA. SET? (Y/N)	• Waiting for the key input of standard parameter setting (Y/N).
BASE PARA EXECUTION	• The standard parameters are being set.
EXECUTE FORMAT? (Y/N)	• Waiting for the key input of execute format (Y/N).
FORMAT EXECUTION	• Formatting is being executed.
SETUP COMPLETE	• The simple setup has been completed. Setup with #1060 SETUP "1" has been completed. Formatting with #1060 SETUP "20" has been completed.
NON SETUP	• Completed without executing simple setup. (When “N” has been set for both “BASE PARA. SET? (Y/N)” and “EXECUTE FORMAT? (Y/N)”.)
CONFIRM OPE? (Y/N)	• Confirmation for erasing operating time or alarm history.
INPUT? (Y/N)	• Waiting for the key input of tool length data by manual measurement.
V-ANALIZER EXEC.	• Waveform display data cannot be output while waveform is displayed.
ROM WRITE? (Y/N)	• The system is waiting for a key input to indicate whether to write the macro programs into the FROM.
DATA WRITING	• The macro program is being written into the FROM.
WRITE COMPLETE	• The macro program has been written into the FROM.

3. Program Error

(The bold characters are the message displayed in the screen.)

These alarms occur during automatic operation‚ and the causes of these alarms are mainly program errors which occur‚ for instance‚ when mistakes have been made in the preparation of the machining programs or when programs which conform to the specification have not been prepared.

Error No.	Details	Remedy
P 10	EXCS. AXIS No. The number of axis addresses commanded in the same block exceeds the specifications.	• Divide the alarm block command into two. • Check the specifications.
P 11	AXIS ADR. ERROR The axis address commanded by the program and the axis address set by the parameter do not match.	• Revise the axis names in the program.
P 20	DIVISION ERROR An axis command which cannot be divided by the command unit has been issued.	• Check the program.
P 29	NOT ACCEPT CMND • The normal line control command (G40.1, G41.1, G42.1) has been issued during the modal in which the normal line control is not acceptable. • 2-part system synchronous thread cutting command was issued during a modal for which a 2-part system synchronous thread cutting command cannot be issued.	• Check the program.
P 30	PARITY H The number of holes per character on the paper tape is even for EIA code and odd for ISO code.	• Check the paper tape. • Check the tape puncher and tape reader.
P 31	PARITY V The number of characters per block on the paper tape is odd.	• Make the number of characters per block on the paper tape even. • Set the parameter parity V selection OFF.
P 32	ADDRESS ERROR An address not listed in the specifications has been used.	• Check and revise the program address. • Check and correct the parameters values. • Check the specifications.
P 33	FORMAT ERROR The command format in the program is not correct.	• Check the program.

Error No.	Details	Remedy
P 34	G-CODE ERROR A G code not listed in the specifications has been used. An illegal G code was commanded during the coordinate rotation command (G68).	• Check and correct the G code address in the program.
P 34	G51.2 or G50.2 was commanded when the rotary tool axis No. (#1501 polyax) was set to “0”. G51.2 or G50.2 was commanded when the tool axis was set to the linear axis (#1017 rot “0”).	• Check the parameter setting values.
P 35	CMD-VALUE OVER The setting range for the addresses has been exceeded.	• Check the program.
P 36	PROGRAM END ERR “EOR” has been read during tape and memory operation.	• Enter the M02 and M30 command at the end of the program. • Enter the M99 command at the end of the subprogram.
P 37	PROG. NO. ZERO A zero has been specified for program and sequence numbers.	• The program numbers are designated across a range from 1 to 99999999. • The sequence numbers are designated across a range from 1 to 99999.
P 39	NO SPEC ERR • A non-specified G code was specified. • The high-speed program server operation specifications are not provided.	• Check the specifications.
P 40	PREREAD BL. ERR When tool radius compensation is executed‚ there is an error in the pre-read block and so the interference check is disabled.	• Reconsider the program.
P 60	OVER CMP. LENG. The commanded movement distance is excessive. (Over 2³¹)	• Reconsider the axis address command.
P 62	F-CMD. NOTHING • No feed rate command has been issued. • There is no F command in the cylindrical interpolation or pole coordinate interpolation immediately after the G95 mode is commanded.	• The default movement modal command at power ON is G01. This causes the machine to move without a G01 command if a movement command is issued in the program, and an alarm results. Use an F command to specify the feedrate. • Specify F with a thread lead command.
P 65	NO G05P3 SPEC	• Check the high-speed mode III specifications.

Error No.	Details	Remedy
P 70	ARC ERROR • There is an error in the arc start and end points as well as in the arc center. • The difference of the involute curve through the start point and the end point is large. • When arc was commanded, one of the two axes configuring the arc plane was a scaling valid axis.	• Check the numerical values of the addresses that specify the start and end points, arc center as well as the radius in the program. • Check the “+” and “-” directions of the address numerical values.
P 71	ARC CENTER • The arc center is not sought during R-specified circular interpolation. • The curvature center of the involute curve cannot be obtained.	• Check the numerical values of the addresses in the program. • Check whether the start point or end point is on the inner side of the base circle for involute interpolation. When carrying out tool radius compensation, check that the start point and end point after compensation are not on the inner side of the base circle for involute interpolation. • Check whether the start point and end point are at an even distance from the center of the base circle for involute interpolation.
P 72	NO HELICAL SPEC A helical command has been issued though it is not included in the specifications.	• Check the helical specifications. • An Axis 3 command was issued by the circular interpolation command. If there is no helical specification, the linear axis is moved to the next block.
P 90	NO THREAD SPEC A thread cutting command has been issued though it is not included in the specifications.	• Check the specifications.
P 93	SCREW PITCH ERR The screw pitch has not been set correctly when the thread cutting command is issued.	• Issue the thread cutting command and then set the screw pitch command properly.
P100	NO CYLIND SPEC Cylindrical interpolation was commanded when the cylindrical interpolation specifications were not provided.	• Check the specifications.
P111	PLANE CHG (CR) Plane selection commands (G17, G18, and G19) were issued when a coordinate rotation command (G68) was issued.	• Before issuing the plane selection commands, issue G68 and then G69 (coordinate rotation cancel).

Error No.	Details	Remedy
P112	PLANE CHG (CC) • A plane selection command (G17‚ G18‚ G19) has been issued when the tool radius compensation command (G41‚ G42) or nose R compensation command (G41‚ G42‚ G46) is issued. • The plane selection command was issued when nose R compensation is completed‚ there is no axial movement command after the G40 command‚ and the compensation has not been canceled.	• Issue the plane selection command after the tool radius compensation command or nose R compensation command has been canceled (issue axial movement command after the G40 cancel command).
P113	ILLEGAL PLANE The arc command axis is not on the selected plane.	• Issue arc command on the correctly selected plane.
P122	NO AUTO C-OVR An automatic corner override command (G62) has been issued though it is not included in the specifications.	• Check the specifications. • Delete the G62 command from the program.
P126	ILL. CMD(H.A.) An illegal command was issued during the high-accuracy control mode. • A G code group 13 command was issued during the high-accuracy control mode. • Milling, cylindrical interpolation or pole coordinate interpolation was commanded during the high-accuracy control mode.	• Reconsider the program.
P130	2nd AUX. ADDR The 2nd miscellaneous function address specified in the program does not match that set by the parameter.	• Check and correct the 2nd miscellaneous function address in the program.
P131	NO G96 SPEC (No constant peripheral speed) The constant peripheral speed command (G96) was issued despite the fact that such a command does not exist in the specifications.	• Check the specifications. • Change from the constant peripheral speed command (G96) to the rotation speed command (G97).
P132	SPINDLE S = 0 No spindle speed command has been specified.	• Reconsider the program.
P133	G96 P-No. ERR An invalid constant peripheral speed control axis has been specified.	• Reconsider the parameter specified for the constant peripheral speed control axis.

Error No.	Details	Remedy
P134	G96 Clamp Err. The constant surface speed control command (G96) was issued without commanding the spindle speed clamp (G92/G50).	Press the reset key and carry out the remedy below. • Check the program. • Issue the G92/G50 command before the G96 command. • Command the constant surface speed cancel (G97) to switch to the rotation speed command. (Applicable only to M65 V series and M64 C version series)
P140	NO T-POS OFST The position compensation command (G45 to G48) specifications are not available.	• Check the specifications.
P141	PAT-ROT ERROR Position compensation was commanded during the figure rotation or coordinate rotation command.	• Reconsider the program.
P142	T-OFFS G2 ERR A position compensation invalid arc command was commanded.	• Reconsider the program.
P150	NO R-CMP SPEC • Even though there were no tool radius compensation specifications, tool radius compensation commands (G41 and G42) were issued. • Even though there were no nose R compensation specifications, nose R compensation commands (G41, G42, and G46) were issued.	• Check the specifications.
P151	G2‚ 3 CMP. ERR A compensation command (G40‚ G41‚ G42‚ G43‚ G44‚ G46) has been issued in the arc mode (G02‚ G03).	• Issue the linear command (G01) or rapid traverse command (G00) in the compensation command block or cancel block. (Set the modal to linear interpolation.)
P152	I.S.P NOTHING In interference block processing during execution of a tool radius compensation (G41 or G42) or nose R compensation (G41‚ G42‚ or G46) command‚ the intersection point after one block is skipped cannot be determined.	• Reconsider the program.
P153	I.F ERROR An interference error has arisen while the tool radius compensation command (G41‚ G42) or nose R compensation command (G41‚ G42‚ G46) was being executed.	• Reconsider the program.

Error No.	Details	Remedy
P155	F-CYC ERR (CC) A fixed cycle command has been issued in the radius compensation mode.	• The radius compensation mode is established when a fixed cycle command is executed and so the radius compensation cancel command (G40) should be issued.
P156	BOUND DIRECT At the start of G46 nose R compensation‚ the compensation direction is undefined if this shift vector is used.	• Change the vector to that with which the compensation direction is defined. • Exchange with a tool having a different tip point number.
P157	SIDE REVERSED During G46 nose R compensation‚ the compensation direction is inverted.	• Change the G command to that which allows inversion of the compensation direction (G00‚ G28‚ G30‚ G33‚ or G53). • Exchange with a tool having a different tip point number. • Turn ON the #8106 G46 inversion error avoidance parameter.
P158	ILLEGAL TIP P. During G46 nose R compensation‚ the tip point is illegal (other than 1 to 8).	• Change the tip point number to a legal one.
P170	NO CORR. No. The compensation number (DOO‚ TOO‚ HOO) command was not given when the radius compensation (G41‚ G42‚ G43‚ G46) command was issued. Alternatively‚ the compensation number is larger than the number of sets in the specifications.	• Add the compensation number command to the compensation command block. • Check the number of compensation number sets a correct it to a compensation number command within the permitted number of compensation sets.
P172	G10 L-No. ERR (G10 L-number error) The L address command is not correct when the G10 command is issued.	• Check the address L-Number of the G10 command and correct the number.
P173	G10 P-No. ERR (G10 compensation error) When the G10 command is issued‚ a compensation number outside the permitted number of sets in the specifications has been commanded for the compensation number command.	• First check the number of compensation sets and then set the address P designation to within the permitted number of sets.
P177	LIFE COUNT ACT Registration of tool life management data with G10 was attempted when the used data count valid signal was ON.	• The tool life management data cannot be registered when counting the used data. Turn the used data count valid signal OFF.

Error No.

Details

Remedy

P178

LIFE DATA OVER

The No. of registration groups‚ total No. of registered tools or the No. of registrations per group exceeded the specifications range.

• Review the No. of registrations. The maximum No. of registrations is shown below.

System	System 1		System 2
No. of groups	80		40/40
No. of tools	80		40/40
Per group		16

P179

GROUP No. ILL.

• When registering the tool life management data with G10‚ the group No. was commanded in duplicate.

• A group No. that was not registered was designated during the T 99 command.

• An M code command must be issued as a single command but coexists in the same block as that of another M code command.

• The M code commands set in the same group exist in the same block.

• The group No. cannot be commanded in duplicate. When registering the group data‚ register it in group units.

• Correct to the correct group No.

P180

NO BORING CYC.

A fixed cycle command was issued though there are not fixed cycle (G72 – G89) specifications.

• Check the specifications.

• Correct the program.

P181

NO S-CMD (TAP)

The spindle rotation speed command has not been issued when the hole drilling fixed cycle command is given.

• Issue the spindle rotation speed command (S) when the hole drilling fixed cycle command G84‚ G74 (G84‚ G88) is given.

P182

SYN TAP ERROR

Connection to the main spindle unit was not established.

• Check connection to the main spindle.

• Check that the main spindle encoder exists.

P183

PTC/THD‚ No.

The pitch or thread number command has not been issued in the tap cycle of a hole drilling fixed cycle command. The pitch is too small for the spindle rotation speed.

The thread number is too large for the spindle rotation speed.

• Specify the pitch data and the number of threads by F or E command.

Error No.	Details	Remedy
P184	NO PTC/THD CMD The pitch or the number of threads per inch is illegal in the tap cycle of the hole drilling fixed cycle command. The pitch is too small for the spindle rotation speed. The thread number is too large for the spindle rotation speed.	• Check the pitch or the number of threads per inch.
P190	NO CUTTING CYC A lathe cutting cycle command was input although the lathe cutting cycle was undefined in the specification.	• Check the specification. • Delete the lathe cutting cycle command.
P191	TAPER LENG ERR In the lathe cutting cycle‚ the specified length of taper section is illegal.	• The radius set value in the lathe cycle command must be smaller than the axis shift amount.
P192	CHAMFERING ERR Chamfering in the thread cutting cycle is illegal.	• Set a chamfering amount not exceeding the cycle.
P200	NO MRC CYC SPC The fixed cycle for compound lathe I (G70 to G73) was commanded when the fixed cycle for compound lathe I specifications were not provided.	• Check the specification.
P201	PROG. ERR (MRC) • When called with a fixed cycle for compound lathe I command, the subprogram contained at least one of the following commands: • Reference point return command (G27, G28, G29, G30) • Thread cutting (G33, G34) • Fixed cycle skip-function (G31) • The first move block of the finish shape program in fixed cycle for compound lathe I contains an arc command.	• Delete the following G codes from this subprogram that is called with the fixed cycle for compound lathe I commands (G70 to G73): G27‚ G28‚ G29, G30‚ G31‚ G33‚ G34, fixed cycle G-code. • Remove G2 and G3 from the first move block of the finish shape program in fixed cycle for compound lathe I.
P202	BLOCK OVR (MRC) The number of blocks in the shape program of the fixed cycle for compound lathe I is over 50 or 200 (this differs according to the model).	• Specify 50 or a less value. The number of blocks in the shape program called by the fixed cycle for compound lathe I commands (G70 to G73) must be decreased below 50 or 200 (this differs according to the model).
P203	CONF. ERR (MRC) The fixed cycle for compound lathe I (G70 to G73) shape program could not cut the work normally because it defined an abnormal shape.	• Check the fixed cycle for compound lathe I (G70 to G73) shape program.
P204	VALUE ERR (MRC) A command value of the fixed cycle for compound lathe (G70 to G76) is illegal.	• Check the fixed cycle for compound lathe (G70 to G76) command value.

Error No.	Details	Remedy
P210	NO PAT CYC SPC • A fixed cycle for compound lathe II (G74 to G76) command was input although it was undefined in the specification. • In 1-part system, 2-part system synchronous thread cutting command was issued.	• Check the specification.
P220	NO SPECIAL CYC No special fixed cycle specifications are available.	• Check the specifications.
P221	NO HOLE (S_CYC) A 0 has been specified for the number of holes in special fixed cycle mode.	• Reconsider the program.
P222	G36 ANGLE ERR A G36 command specifies 0 for angle intervals.	• Reconsider the program.
P223	G12 G13 R ERR The radius value specified with a G12 or G13 command is below the compensation amount.	• Reconsider the program.
P224	NO G12‚ G13 SPC There are no circular cutting specifications.	• Check the specifications.
P230	NESTING OVER • A subprogram has been called 4 or more times in succession from the subprogram. • The program in the IC card contains the M198 command. • The program in the IC card has been called more than once (the program in the IC card can be called only once at a time).	• Check the number of subprogram calls and correct the program so that it does not exceed 4 times. • When using the IC card, the IC card and the number of IC card program calls.
P231	NO N-NUMBER At subprogram call time‚ the sequence number set at return from the subprogram or specified by GOTO‚ was not set.	• Specify the sequence numbers in the call block of the subprogram. • When using an IC card, check the program and its No. in the IC card.
P232	NO PROGRAM No. The subprogram has not been found when the subprogram is called.	• Enter the subprogram. • Check the program number in the IC card.
P241	NO VARl NUMBER The variable number commanded is higher than the numbers in the specifications.	• Check the specifications. • Check the program variable number.
P242	EQL. SYM. MSSG. The "=" sign has not been commanded when a variable is defined.	• Designate the "=" sign in the variable definition of the program.

Error No.	Details	Remedy
P243	VARIABLE ERR. An invalid variable has been specified in the left or right side of an operation expression.	• Correct the program.
P252	PAT.&COOD-ROT A coordinate rotation related command (G68, G69) was issued during figure rotation.	• Reconsider the program.
P260	NO COOD-RT SPC Even though there were no coordinate rotation specifications, a coordinate rotation command was issued.	• Check the specifications.
P270	NO MACRO SPEC A macro specification was commanded though there are no such command specifications.	• Check the specifications.
P271	NO MACRO INT. A macro interrupt command has been issued though it is not included in the specifications.	• Check the specifications.
P272	MACRO ILL. A statement and a macro statement exist together in the same block.	• Reconsider the program and place the executable statement and macro statement in separate blocks.
P273	MACRO OVERCALL The number of macro call nests exceeded the specifications.	• Reconsider the program and correct it so that the macro calls do not exceed the limit imposed by the specification.
P275	MACRO ARG. EX. The number of macro call argument type II sets has exceeded the limit.	• Reconsider the program.
P276	CALL CANCEL A G67 command was issued though it was not during the G66 command modal.	• Reconsider the program. • The G67 command is the call cancel command and so the G66 command must be designated first before it is issued.
P277	MACRO ALM MESG An alarm command has been issued in #3000.	• Refer to the operator messages on the DIAG screen. • Refer to the instruction manual issued by the machine manufacturer.
P280	EXC. [ ‚ The number of parentheses "[" or "]" which can be commanded in a single block has exceeded five.	• Reconsider the program and correct it so the number of "[" or "]" does not exceed five.
P281	[ ‚ ] ILLEGAL The number of "[" and "]" parentheses commanded in a single block does not match.	• Reconsider the program and correct it so that "[" and "]" parentheses are paired up properly.
P282	CALC. IMPOSS. The arithmetic formula is incorrect.	• Reconsider the program and correct the formula.

Error No.	Details	Remedy
P283	DIVIDE BY ZERO The denominator of the division is zero.	• Reconsider the program and correct it so that the denominator for division in the formula is not zero.
P290	IF SNT. ERROR There is an error in the IF conditional GOTO statement.	• Reconsider the program.
P291	WHILE SNT. ERR There is an error in the WHILE conditional DO -END statement.	• Reconsider the program.
P292	SETVN SNT. ERR There is an error in the SETVN statement when the variable name setting was made.	• Reconsider the program. • The number of characters in the variable name of the SETVN statement must be 7 or less.
P293	DO-END EXCESS The number of 's for DO-END in the WHILE conditional DO - END statement has exceed 27.	• Reconsider the program and correct it so that the number of 's in the DO - END statement does not exceed 27.
P294	DO-END MMC. The DO's and END's are not paired off properly.	• Reconsider the program and correct it so that the DO's and END's are paired off properly.
P295	WHILE/GOTO TPE There is a WHILE or GOTO statement on the tape during tape operation.	• During tape operation‚ a program which includes a WHILE or GOTO statement cannot be executed and so the memory operation mode is established instead.
P296	NO ADR (MACRO) A required address has not been specified in the user macro.	• Review the program.
P297	ADR-A ERR. The user macro does not use address A as a variable.	• Review the program.
P298	PTR OP (MACRO) User macro G200‚ G201‚ or G202 was specified during tape or MDI operation.	• Review the program.
P300	VER. NAME ERROR The variable names have not been commanded properly.	• Reconsider the variable names in the program and correct them.
P301	VAR NAME DUPLI The name of the variable has been duplicated.	• Correct the program so that the name is not duplicated.
P350	NO SCALING SPC The scaling command (G50, G51) was issued when the scaling specifications were not available.	• Check the specifications.
P360	NO PROG.MIRR. A mirror image (G50.1 or G51.1) command has been issued though the programmable mirror image specifications are not provided.	• Check the specifications.

Error No.	Details	Remedy
P370	NO OPOS MR SPC The facing turret mirror image specifications are not provided.	• Check the specifications.
P371	MIRR ILLEGAL Facing turret mirror image was commanded to an axis for which external mirror image or parameter mirror image is valid. Facing turret mirror image validating mirror image for a rotary axis was commanded.	• Check the program. • Check the parameters.
P380	NO CORNER R/C A command was issued for corner chamfering/corner rounding though there are no such specifications.	• Check the specifications. • Remove the corner chamfering/corner rounding command from the program.
P381	NO ARC R/C SPC Corner chamfering/corner rounding was specified in the arc interpolation block although corner chamfering/corner rounding II is unsupported.	• Check the specifications.
P382	CORNER NO MOVE The block next to corner chamfering/ corner rounding is not a movement command.	• Replace the block succeeding the corner chamfering/corner rounding command by G01 command.
P383	CORNER SHORT In the corner chamfering/corner rounding command‚ the movement distance was shorter than the value in the corner chamfering/corner rounding command.	• Make the corner chamfering/corner rounding less than the movement distance since this distance is shorter than the corner chamfering/ corner rounding.
P384	CORNER SHORT When the corner chamfering/corner rounding command was input‚ the movement distance in the following block was shorter than the length of the corner chamfering/corner rounding.	• Make the corner chamfering/corner rounding less than the movement distance since this distance in the following block is shorter than the corner chamfering/corner rounding.
P385	G0 G33 IN CONR A block with corner chamfering/corner rounding was given during G00 or G33 modal.	• Recheck the program.
P390	NO GEOMETRIC A geometric command was issued though there are no geometric specifications.	• Check the specifications.
P391	NO GEOMETRIC 2 There are no geometric IB specifications.	• Check the specifications.
P392	LES AGL (GEOMT) The angular difference between the geometric line and line is 1° or less.	• Correct the geometric angle.

Error No.	Details	Remedy
P393	INC ERR (GEOMT) The second geometric block was specified by an incremental value.	• Specify this block by an absolute value.
P394	NO G01 (GEOMT) The second geometric block contains no linear command.	• Specify the G01 command.
P395	NO ADRS (GEOMT) The geometric format is invalid.	• Recheck the program.
P396	PL CHG. (GEOMT) A plane switching command was executed during geometric command processing.	• Execute the plane switching command before geometric command processing.
P397	ARC ERR (GEOMT) In geometric IB‚ the circular arc end point does not contact or cross the next block start point.	• Recheck the geometric circular arc command and the preceding and following commands.
P398	NO GEOMETRIC 1B Although the geometric IB specifications are not included‚ a geometric command is given.	• Check the specifications.
P421	PRAM. IN ERROR • The specified parameter number or set data is illegal. • An illegal G command address was input in parameter input mode. • A parameter input command was input during fixed cycle modal or nose R compensation.	• Check the program.
P430	AXIS NOT RET. • A command was issued to move an axis‚ which has not returned to the reference point‚ away from that reference point. • A command was issued to an axis removal axis.	• Execute reference point return manually. • The command was issued to an axis for which axis removal is validated so invalidate axis removal.
P431	NO 2nd REF. SPC A command for second‚ third or fourth reference point return was issued though there are no such command specifications.	• Check the specifications.
P434	COLLATION ERR One of the axes did not return to the start position when the origin point collate command (G27) was executed.	• Check the program.

Error No.	Details	Remedy
P435	G27/M ERROR An M command was issued simultaneously in the G27 command block.	• An M code command cannot be issued in a G27 command block and so the G27 command and M code command must be placed in separate blocks.
P436	G29/M ERROR An M command was issued simultaneously in the G29 command block.	• An M code command cannot be issued in a G29 command block and so the G29 command and M code command must be placed in separate blocks.
P438	NOT USE (G52) A local coordinate system command was issued during execution of the G54.1 command.	• Review the program.
P450	NO CHUCK BARR. The chuck barrier on command (G22) was specified although the chuck barrier was undefined in the specification.	• Check the specification.
P460	TAPE I/O ERROR An error has arisen in the tape reader or‚ alternatively‚ in the printer during macro printing.	• Check the power and cable of the connected devices. • Check the I/O device parameters.
P461	FILE I/O ERROR A file of the machining program cannot be read.	• In memory mode, the programs stored in memory may have been destroyed. Output all of the programs and tool data once and format them. • Ensure that the external device (including a floppy disk drive and IC card) that contains the file is mounted.
P462	DNC ERROR A communication error occurred during the BTR operation.	• L01 DNC ERROR is displayed simultaneously, so remedy the problem according to the error No.
P480	NO MILL SPEC • Milling was commanded when the milling specifications were not provided. • Pole coordinate interpolation was commanded when the pole coordinate interpolation specifications were not provided.	• Check the specification.
P481	MILL ILL. G • An illegal G code was used during the milling mode. • An illegal G code was used during cylindrical interpolation or pole coordinate interpolation. • The G07.1 command was issued during the tool radius compensation.	• Check the program.

Error No.

Details

Remedy

P482

MILL ILL. AXIS

• A rotary axis was commanded during the milling mode.

• Milling was executed even though an illegal value was set for the milling axis No.

• Cylindrical interpolation or pole coordinate interpolation was commanded during mirror image.

• Cylindrical interpolation or pole coordinate interpolation was commanded before the tool compensation was completed after the T command.

• G07.1 was commanded when cylindrical interpolation was not possible (there is no rotary axis, or external mirror image is ON).

• G12.1 was commanded when polar coordinate interpolation was not possible.

• An axis other than a cylindrical coordinate system axis was commanded during cylindrical interpolation.

• Check the machining program, parameters and PLC I/F signal.

P484

MILL AXIS RET.

• Movement was commanded to an axis that had not completed reference point return during the milling mode.

• Movement was commanded to an axis that had not completed reference point return during cylindrical interpolation or pole coordinate interpolation.

• Carry out manual reference point return.

Error No.

Details

Remedy

P485

MILL ILL. MODAL

• The milling mode was turned ON during nose R compensation or constant surface speed control.

• A T command was issued during the milling mode.

• The mode was switched from milling to cutting during tool compensation.

• Cylindrical interpolation or pole coordinate interpolation was commanded during the constant surface speed control mode (G96).

• The command unacceptable in the cylindrical interpolation was issued.

• A T command was issued during the cylindrical interpolation or pole coordinate interpolation mode.

• A movement command was issued when the plane was not selected just before or after the G07.1 command.

• A plane selection command was issued during the pole coordinate interpolation mode.

• Cylindrical interpolation or pole coordinate interpolation was commanded during tool radius compensation.

• The G16 plane in which the radius value of a cylinder is 0 was specified.

• A cylindrical interpolation or pole coordinate interpolation command was issued during program coordinate rotation (G68).

• Check the program.

• Before issuing G12.1, issue G40 or G97.

• Before issuing G12.1, issue a T command.

• Before issuing G13.1, issue G40.

• Specify the radius value of a cylinder other than 0, or specify the X axis’s current value other than 0 before issuing G12.1/G16.

P486

MILLING ERROR

• The milling command was issued during the mirror image (when parameter or external input is turned ON).

• Pole coordinate interpolation, cylindrical interpolation or milling interpolation was commanded during facing turret mirror image.

• The start command of the cylindrical interpolation or polar coordinate interpolation was issued during the normal line control.

• Check the program.

Error No.	Details	Remedy
P511	SYNC CODE ERR • Two or more synchronization M codes were commanded in the same block. • The synchronization M code and "!" code were commanded in the same block.	• Check the program.
P600	NO AUTO TLM. An automatic tool length measurement command (G37) was execute though there are no such command specifications.	• Check the specifications.
P601	NO SKIP SPEC. A skip command (G31) was issued though there are no such command specifications.	• Check the specifications.
P602	NO MULTI SKIP A multiple skipping command (G31.1‚ G31.2 or G31.3) was issued though there are no such command specifications.	• Check the specifications.
P603	SKIP SPEED 0 The skip speed is 0.	• Specify the skip speed.
P604	TLM ILL. AXIS No axis or more than one axis was specified in the automatic tool length measurement block.	• Specify only one axis.
P605	T-CMD IN BLOCK The T code is in the same block as the automatic tool length measurement block.	• Specify this T code before the block.
P606	NO T-CMD BEFOR The T code was not yet specified in automatic tool length measurement.	• Specify this T code before the block.
P607	TLM ILL. SIGNL Before the area specified by the D command or decelerating area parameter d‚ the measurement position arrival signal went ON. The signal remains OFF to the end.	• Check the program.
P608	SKIP ERROR (CC) A skip command was specified during radius compensation processing.	• Specify a radius compensation cancel (G40) command’ or remove the skip command.
Error No.	Details	Remedy
P610	ILLEGAL PARA. • The parameter setting is not correct. • G114.1 was commanded when the spindle synchronization with PLC I/F command was selected. • G113 was commanded when the spindle-spindle polygon machining option was OFF and the spindle synchronization with PLC I/F command was selected.	• Check whether #1549 Iv0vR1 to #1553 Iv0vR5 are set in descending order (in order of large values). • Check whether #1554 Iv0rd2 to #1557 Iv0rd5 are set in descending order. • Check and correct #1514 expLinax and #1515 expRotax. • Check the program. • Check the parameter.
P612	EXP. ERROR A movement command for exponential function interpolation was issued during facing turret mirror image.	• Check the program.
P700	CMD-VALUE ILL. Spindle synchronization was commanded to a spindle that is not connected serially.	• Check the program. • Check the parameter.
P900	NO TANZ. SPEC A normal line control command (G40.1, G41.1, G42.1) was issued when the normal line control specifications were not provided.	• Check the specifications.
P901	TAN. AXIS G92 A coordinate system preset command (G92) was issued to a normal line control axis during normal line control.	• Check the program.
P902	TAN. AXIS LINE • The normal line control axis was set to a linear axis. • The normal line control axis was set to the linear type rotary axis II axis. • The normal line control axis has not been set. • The normal line control axis was the same as the plane selection axis.	• Correct the normal line control axis.
P903	PLANE CHG (TAN) The plane selection command (G17, G18, G19) was issued during normal line control.	• Delete the plane selection command (G17, G18, G19) from the program for normal line control.
P990	PREPRO S/W ERR Combining commands that required pre-reading (nose R offset‚ corner chamfering/corner rounding‚ geometric I‚ geometric IB‚ and fixed cycle for compound lathe) resulted in eight or more pre-read blocks.	• Reduce the number of commands that require pre-reading or delete such commands.