9.
9 -
9
MAINTENANCE FUNCTION
9.3.3
Resetting error
The QnACPU can reset the errors only for the errors that continue operation of the CPU
module.
The procedure for resetting an error is as follows.
1) Eliminate the cause of the error.
2) Store the error code to be reset in special register SD50.
3) Turn on special register SM50.
4) The error is reset.
If the CPU module is reset with the error reset, the special relay and special register
relating to the error, and the LED/LED indicator, return to their status before error
occurrence.
If the same error occurs again after the error reset, it is recorded in the error history again.
To reset multiple detected annunciators, only the first detected F number is reset.
POINT
When an error is reset by storing its error code in SD50, the last two digits of the
error code are ignored.
Example:
If errors with error codes 2100 and 2111 have occurred, and error code 2100 is
reset, error code 2111 is also reset.
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 ...
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