Mitsubishi Electronics manual 10

11 TROUBLESHOOTING	11- 1 to 11-99
11.1 Troubleshooting Basics......................................................................................................................	11- 1
11.2 Troubleshooting..................................................................................................................................	11- 2
11.2.1 Troubleshooting flowchart...........................................................................................................	11- 2
11.2.2 Flowchart for when the "MODE" LED is not turned on..............................................................	11- 3
11.2.3 Flowchart for when the "MODE" LED is flickering .....................................................................	11- 4
11.2.4 Flowchart for when the "POWER" LED is turned off .................................................................	11- 5
11.2.5 Flowchart for when the "RUN" LED is turned off .......................................................................	11- 6
11.2.6 When the "RUN" LED is flickering..............................................................................................	11- 7
11.2.7 Flowchart for when the "ERR." LED is on/flickering ..................................................................	11- 7
11.2.8 When the "USER" LED is turned on...........................................................................................	11- 8
11.2.9 When the "BAT." LED is turned on.............................................................................................	11- 8
11.2.10 Flowchart for when the "BOOT" LED is flickering....................................................................	11- 9
11.2.11 Flowchart for when output module LED is not turned on ........................................................	11-10
11.2.12 Flowchart for when output load of output module does not turn on........................................	11-11
11.2.13 Flowchart for when unable to read a program .........................................................................	11-12
11.2.14 Flowchart for when unable to write a program.........................................................................	11-13
11.2.15 Flowchart for when it is unable to perform boot operation from memory card	....................... 11-15
11.2.16 Flowchart for when UNIT VERIFY ERR. occurs......................................................................	11-16
11.2.17 Flowchart for when CONTROL BUS ERR. occurs..................................................................	11-17
11.3 Error Code List....................................................................................................................................	11-18
11.3.1 Procedure for reading error codes..............................................................................................	11-18
11.3.2 Error code list ..............................................................................................................................	11-19
11.4 Canceling of Errors.............................................................................................................................	11-37
11.5 I/O Module Troubleshooting...............................................................................................................	11-38
11.5.1 Input circuit troubleshooting........................................................................................................	11-38
11.5.2 Output circuit troubleshooting.....................................................................................................	11-41
11.6 Special Relay List ...............................................................................................................................	11-42
11.7 Special Register List...........................................................................................................................	11-64
APPENDICES	App- 1 to App-17
APPENDIX 1 Error Code Return to Origin During General Data Processing ........................................	App- 1
APPENDIX 1.1 Error code overall explanation ...................................................................................	App- 1
APPENDIX 1.2 Description of the errors of the error codes (4000H to 4FFFH) .................................	App- 2
APPENDIX 2 External Dimensions .........................................................................................................	App- 7
APPENDIX 2.1 CPU module ...............................................................................................................	App- 7
APPENDIX 2.2 Power supply module.................................................................................................	App- 7
APPENDIX 2.3 Main base unit ............................................................................................................	App-10
APPENDIX 2.4 Slim type main base unit ............................................................................................	App-12
APPENDIX 2.5 Extension base unit ....................................................................................................	App-13
APPENDIX 3 Upgraded Functions of High Performance Model QCPU ................................................	App-16
APPENDIX 3.1 Specification comparison ...........................................................................................	App-16
APPENDIX 3.2 Function comparison..................................................................................................	App-16
APPENDIX 3.3 Added functions and the corresponding GX Developer versions.............................	App-17
INDEX	Index- 1 to Index- 2
A - 9	A - 9