A - 14
20.2.1 Standard applied for MELSEC-QnA series PLC ...............................................................20 - 11
20.2.2 Precautions when using the QnA series PLC ...................................................................20 - 11
20.2.3 Power supply.....................................................................................................................20 - 12
20.2.4 Control panel.....................................................................................................................20 - 13
20.2.5 Module installation ............................................................................................................20 - 14
20.2.6 Grounding .........................................................................................................................20 - 14
20.2.7 External wiring...................................................................................................................20 - 14
21.1 Daily Inspection ...........................................................................................................................21 - 1
21.2 Periodic Inspection ......................................................................................................................21 - 2
21.3 Battery Replacement...................................................................................................................21 - 4
21.3.1 Battery life ...........................................................................................................................21 - 6
21.3.2 Battery replacement procedure...........................................................................................21 - 8
21.4.1 Replacement of the fuse for a power supply module ........................................................21 - 12
21.4.2 Replacement of the fuse for an output module .................................................................21 - 13
21.5 When Reoperating a PLC After Storing it with a Battery Unconnected.....................................21 - 14
21.6 When a PLC is Reoperated After Stored with the Battery Over the Battery Life.......................21 - 15
22.1 Fundamentals of Troubleshooting...............................................................................................22 - 1
22.2 Troubleshooting...........................................................................................................................22 - 2
22.2.1 Troubleshooting flowchart ...................................................................................................22 - 2
22.2.2 Flow for actions when the "POWER" LED is turned OFF ...................................................22 - 3
22.2.3 Flow for actions when the "RUN" LED is turned OFF .........................................................22 - 4
22.2.4 When the "RUN" LED is flashing ........................................................................................22 - 5
22.2.5 Flow for actions when the "ERROR LED" is turned ON/flashing ........................................22 - 6
22.2.6 When the "USER" LED is turned ON ..................................................................................22 - 7
22.2.7 When the "BAT.ARM" LED is turned ON ...........................................................................22 - 7
22.2.8 Flow for actions when the output module's output load does not turn ON ..........................22 - 8
22.2.9 Flow for actions when the program cannot be written.........................................................22 - 9
22.2.10 Flow for actions when booting from a memory card is not possible..................................22 - 11
22.2.11 Flow chart used when the CPU module is not started up .................................................22 - 13
22.3.1 Error Codes.......................................................................................................................22 - 16
22.3.2 Procedure to read an error code .......................................................................................22 - 16
22.3.3 Error code list (1000 to 1999)............................................................................................22 - 17
22.3.4 Error code list (2000 to 2999)............................................................................................22 - 22
22.3.5 Error code list (3000 to 3999)............................................................................................22 - 28
22.3.6 Error code list (4000 to 4999)............................................................................................22 - 32
22.3.7 Error code list (5000 to 5999)............................................................................................22 - 41
22.3.8 Error code list (6000 to 6999)............................................................................................22 - 42
22.3.9 Error code list (7000 to 10000)..........................................................................................22 - 44
22.3.10 Canceling of Errors ...........................................................................................................22 - 45
Summary of Contents for Q2ACPU
Page 1: ......
Page 2: ......
Page 221: ...12 12 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Page 222: ...12 13 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU ...
Page 237: ...12 28 12 OVERVIEW OF PROCESSING PERFORMED BY THE QnACPU MEMO ...
Page 271: ...16 13 16 POWER SUPPLY MODULE 4 Names and description of parts of the A66P ...
Page 343: ...21 21 13 MAINTENANCE AND INSPECTION 21 4 2 Replacement of the fuse for an output module ...
Page 357: ...22 12 22 TROUBLESHOOTING ...
Page 359: ...22 14 22 TROUBLESHOOTING MEMO ...
Page 429: ...App 32 APPENDICES Trigonometric function Classification Symbol Description ...
Page 537: ...App 140 APPENDICES REMARK 1 Message 1 An error code is displayed in 2 Alert 1 3 Alert 2 ...
Page 539: ...App 142 APPENDICES 2 Q2ACPU Q2ACPU S1 modules Unit mm inch ...
Page 541: ...App 144 APPENDICES 2 A66P power supply module Unit mm inch ...
Page 543: ...App 146 APPENDICES 3 A35B base unit 4 A38B A38HB A38HBEU base unit Unit mm inch Unit mm inch ...
Page 567: ...MEMO ...
Page 569: ......
Page 570: ......