Appendix 6 Explanation of Alarms
MITSUBISHI CNC
IV - 88
Y20 Device setting illegal 0011
Details
- The device which is set as the contactor shutoff output doesn't exist.
- The device which is set as the contactor shutoff output is also used as an output device by the user
PLC.
- The safety observation devices 1 to 3 were set with remote I/O assignment disabled.
Remedy
- In parameters #1353 MC_ct1 set the device to which a remote I/O is connected, and use the device
to control the contactor.
- Check whether the devices set by parameters #1353 MC_ct1 are used as an output device by the
user PLC or not. Restart the NC.
- The observation of the observation speed change signals is not compatible with the safety connector
(SDIO).
Enable the remote I/O assignment (#1341 ssc_rio=1), and connect the observation speed change
signal, that is to be input to the NC control unit, to the I/O unit.
Y20 Contactor operation abnormal 0012 Contactor No.
Details
Contactor's operation is not following the NC's commands.
Displays the No. of the abnormal contactor.
Remedy
- Check and correct "#1353 MC_ct1 (Contactor shutoff output 1 device)" setting.
- Check the wiring for contactor shutoff.
- Check for contactor's welding.
Y20 STO function operation illegal 0013
Details
The drive unit's STO function has failed to work properly.
Remedy
If this alarm has occurred alone, a drive unit failure can be suspected.
If other alarms have been generated at the same time, it is also possible that there is communication
problem. Check the optical cable wiring.
Y20 STO function illegal at pwr ON 0014
Details
The motor power has not been shut down with the STO function when the NC power was turned ON.
Remedy
If this alarm has occurred alone, a drive unit failure can be suspected.
If other alarms have been generated at the same time, it is also possible that there is communication
problem. Check the optical cable wiring.
Y20 Safety signal compare error 0020 (Device No.)
Details
A mismatch between safety signals which were input to the NC Control unit and those which were
input to the Drive unit was detected.
The following causes are assumed:
- Cable is disconnected.
- Sensor is broken.
Alarm No. shows the device No. which has the error. ("0024" indicates the device No. X24.)
When two or more signals are detected for errors, the No. shows the first detected signal.
Remedy
Check the wiring.
Y20 Dual signal: parameter setting error 0027
Details
#2118 SscDrSel, #3071 SscDrSelSp, #2180 S_DIN, #3140 S_DINSp, #2188 S_SigIn, and #3145
S_SigInSP are not correctly set.
Remedy
- Correct the parameter setting.
Summary of Contents for E70 Series
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Page 24: ...I SCREEN OPERATIONS ...
Page 25: ......
Page 26: ...I 1 1 Operating the Setting and Display Unit ...
Page 57: ...1 Operating the Setting and Display Unit MITSUBISHI CNC I 32 ...
Page 58: ...I 33 2 Monitor Screens ...
Page 139: ...2 Monitor Screens MITSUBISHI CNC I 114 ...
Page 140: ...I 115 3 Setup Screens ...
Page 232: ...I 207 4 Edit Screens ...
Page 314: ...I 289 5 Diagnosis Screens ...
Page 355: ...5 Diagnosis Screens MITSUBISHI CNC I 330 ...
Page 356: ...I 331 6 Maintenance Screens ...
Page 436: ...II MACHINE OPERATIONS ...
Page 437: ......
Page 439: ...MITSUBISHI CNC II 2 ...
Page 440: ...II 3 1 Operation State ...
Page 444: ...II 7 2 Indicator Lamps ...
Page 446: ...II 9 3 Reset Switch and Emergency Stop Button ...
Page 448: ...II 11 4 Operation Mode ...
Page 456: ...II 19 5 Operation Panel Switches in Operation Mode ...
Page 460: ...II 23 6 Operation Panel Switch Functions ...
Page 495: ...6 Operation Panel Switch Functions MITSUBISHI CNC II 58 ...
Page 496: ...II 59 7 Other Functions ...
Page 509: ...7 Other Functions MITSUBISHI CNC II 72 ...
Page 510: ...III MAINTENANCE ...
Page 511: ......
Page 512: ...III 1 1 Daily Maintenance and Periodic Inspection and Maintenance ...
Page 515: ...1 Daily Maintenance and Periodic Inspection and Maintenance MITSUBISHI CNC III 4 ...
Page 516: ...III 5 2 Hardware Replacement Methods ...
Page 531: ...2 Hardware Replacement Methods MITSUBISHI CNC III 20 ...
Page 532: ...IV APPENDIXES ...
Page 533: ......
Page 534: ...IV 1 Appendix 1 List of Function Codes ...
Page 536: ...IV 3 Appendix 2 Table of Command Value Ranges ...
Page 543: ...Appendix 2 Table of Command Value Ranges MITSUBISHI CNC IV 10 ...
Page 544: ...IV 11 Appendix 3 Circular Cutting Radius Error ...
Page 546: ...IV 13 Appendix 4 Registering Editing the Fixed Cycle Program ...
Page 561: ...Appendix 4 Registering Editing the Fixed Cycle Program MITSUBISHI CNC IV 28 ...
Page 562: ...IV 29 Appendix 5 RS 232C I O Device Parameter Setting Examples ...
Page 564: ...IV 31 Appendix 6 Explanation of Alarms ...
Page 678: ...IV 145 Appendix 7 Operation Messages ...
Page 699: ...Appendix 7 Operation Messages MITSUBISHI CNC IV 166 ...
Page 700: ...IV 167 Appendix 8 User Parameters ...
Page 777: ...Appendix 8 User Parameters MITSUBISHI CNC IV 244 ...
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