9 -
21
9.
MAINTENANCE FUNCTION
(1) A displayed message can be cleared by the same procedure as used to turn an LED
OFF. (Refer to Section 9.9.1 (2).)
However, if there are several display causes at a time, the next message is displayed
when the currently displayed message is cleared.
POINT
(1) When LED and LED indicator are left OFF for the error occurrence above, set the
factor number area to 0, which stores the applicable factor numbers from SD207 to
SD209.
Example:
To set the ERROR LED to remain OFF and the LED indicator to remain
blank when a fuse blown error occurs, set "0" in the item number setting
area whose item number is "2".
Since the item number "2" is not set, the ERROR LED and the LED
indicator remains OFF even if a fuse blown error is detected.The ERROR
LED and the LED indicator also remain OFF even if another error whose
error item number is "2" is detected (I/O module verify error, special
module access verify error).
(2) Even if the LED and the LED indicator are set to remain OFF, SM0 (the diagnostics
error flag) is still turned ON, SM1 (the self-diagnostics error flag) is still turned ON,
and the error code is stored in SD0 (CPU diagnosis error register).
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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