Mitsubishi A1SJH(S8) User Manual

A - 12
9.2.1 Standard applied for MELSEC-AnS series programmable controller .................................9 - 10
9.2.2 Precautions when using the MELSEC-AnS series programmable controller......................9 - 10
9.2.3 Power supply.......................................................................................................................9 - 11
9.2.4 Control panel.......................................................................................................................9 - 12
9.2.5 Module installation ..............................................................................................................9 - 13
9.2.6 Grounding ...........................................................................................................................9 - 13
9.2.7 External wiring.....................................................................................................................9 - 13
10 MAINTENANCE AND INSPECTION 10 - 1 to 10 - 8
10.1 Daily Inspection ...........................................................................................................................10 - 2
10.2 Periodic Inspection ......................................................................................................................10 - 3
10.3 Battery Replacement...................................................................................................................10 - 4
10.3.1 Battery life ...........................................................................................................................10 - 4
10.3.2 Battery replacement procedure...........................................................................................10 - 8
11 TROUBLESHOOTING 11 - 1 to 11 - 22
11.1 Fundamentals of Troubleshooting...............................................................................................11 - 1
11.2 Troubleshooting...........................................................................................................................11 - 2
11.2.1 Troubleshooting procedure .................................................................................................11 - 2
11.2.2 Flow for actions when the "POWER" LED is turned OFF ...................................................11 - 3
11.2.3 Flow for actions when the "RUN" LED is turned OFF .........................................................11 - 4
11.2.4 Flow for actions when the "RUN" LED is flickering .............................................................11 - 5
11.2.5 Flow for actions when the "ERROR" LED is turned ON......................................................11 - 6
11.2.6 Flow for actions when the "ERROR" LED is flickering ........................................................11 - 7
11.2.7 Flow for actions when the output module's output load does not turn ON ..........................11 - 8
11.2.8 Flow for actions when the program cannot be written.........................................................11 - 9
11.2.9 Flow for actions when the CPU module is not started up .................................................11 - 10
11.3 Error Code List ..........................................................................................................................11 - 11
11.3.1 Procedure to read an error code .......................................................................................11 - 11
11.3.2 AnSHCPU error code list ..................................................................................................11 - 12
11.4 Fault Examples with I/O Modules..............................................................................................11 - 17
11.4.1 Faults with the input circuit and the corrective actions......................................................11 - 17
11.4.2 Faults in the output circuit .................................................................................................11 - 19
APPENDIX Appendix - 1 to Appendix - 57
Appendix 1 Instruction List .............................................................................................................. App - 1
Appendix 1.1 Precautions for write during RUN of a dedicated instruction .............................. App - 7
Appendix 2 LISTS OF SPECIAL RELAYS AND SPECIAL REGISTERS ...................................... App - 8
Appendix 2.1 List of Special Relays......................................................................................... App - 8
Appendix 2.2 Special Registers ............................................................................................. App - 20
Appendix 3 Precautions when Replacing AnSCPU with AnSHCPU............................................. App - 39
Appendix 3.1 Differences between A1SHCPU and A1SCPU................................................. App - 39
Appendix 3.2 Differences between A2SHCPU(S1) and A2SCPU .......................................... App - 40
Appendix 3.3 Replacement precautions ................................................................................. App - 40
Appendix 3.3.1 PLC type setting ........................................................................................ App - 40
Appendix 3.3.2 Precautions when performing ROM partition............................................. App - 40

Mitsubishi A1SJH(S8) Specifications

General

Brand	Mitsubishi
Model	A1SJH(S8)
Category	Controller
Language	English