Mitsubishi MELSEC-A A2USHCPU-S1 User Manual

A - 12
9.1.5 Ferrite core............................................................................................................................9 - 9
9.1.6 Noise filter (power supply line filter) ....................................................................................9 - 10
9.1.7 Power line for external power supply terminal ....................................................................9 - 10
9.2 Requirements for Compliance with Low Voltage Directives........................................................9 - 11
9.2.1 Standard applied for MELSEC-AnS series programmable controller .................................9 - 11
9.2.2 Precautions when using the MELSEC-AnS series programmable controller......................9 - 11
9.2.3 Power supply.......................................................................................................................9 - 12
9.2.4 Control panel.......................................................................................................................9 - 13
9.2.5 Module installation ..............................................................................................................9 - 14
9.2.6 Grounding ...........................................................................................................................9 - 14
9.2.7 External wiring.....................................................................................................................9 - 14
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 - 7
11 TROUBLESHOOTING 11 - 1 to 11 - 28
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 Error code list for the AnUCPU, A2US(H)CPU, A2ASCPU and A2USH board ................11 - 12
11.4 Fault Examples with I/O Modules..............................................................................................11 - 23
11.4.1 Faults with the input circuit and the corrective actions......................................................11 - 23
11.4.2 Faults in the output circuit .................................................................................................11 - 25
APPENDIX Appendix - 1 to Appendix - 71
Appendix 1 Instruction List .............................................................................................................. App - 1
Appendix 1.1 Precautions for write during RUN of a dedicated instruction ............................ App - 14
Appendix 2 LISTS OF SPECIAL RELAYS AND SPECIAL REGISTERS .................................... App - 15
Appendix 2.1 List of Special Relays....................................................................................... App - 15
Appendix 2.2 Special Registers ............................................................................................. App - 27
Appendix 3 Peripheral Device....................................................................................................... App - 46

Mitsubishi MELSEC-A A2USHCPU-S1 Specifications

General

Brand	Mitsubishi
Model	MELSEC-A A2USHCPU-S1
Category	Controller
Language	English