9.
9 -
17
MAINTENANCE FUNCTION
9.9
LED Indications
The QnACPU module has LEDs on its front face that indicate the operating status of the
CPU module.
In addition, Q3ACPU and Q4ACPU feature a LED inidcator.
The following shows the meanings of the LED and LED indications.
9.9.1
LED indication
(1) The following shows the meanings of the indications of each of the LEDs are given.
LED Name
Indication Detail
RUN
Indicates the operating status of the CPU module.
ON:
OFF:
Flickering:
Operating with the RUN/STOP key switch set to RUN or STEP RUN.
Operation is stopped, with the RUN/STOP key switch in the STOP, PAUSE, or STEP RUN position.
An error that stops operation has been detected.
The RUN/STOP key switch has been turned from STOP to RUN after writing a program in the STOP status.
To light, either turn the RUN/STOP key switch RUN
STOP
RUN, or reset operation using the RUN/
STOP key switch.
ERROR
Indicates the CPU module error detection status.
ON:
OFF:
Flickering:
A self-diagnostics error that does not stop operation, other than a battery error, has been detected.(The
operation mode at error occurrence has been set to "Resume" in PC RAS setting in the parameter mode.)
Normal
An error that stops operation has been detected.
USER
Indicates the CHK instruction detection status, and annunciator (F) statuses.
ON:
OFF:
Flickering:
An error has been detected by the CHK instruction, or an annunciator F has come ON.
Normal
Executing latch clear.
BAT.ALARM
Indicates the battery statuses of the CPU module itself and the memory card.
ON:
OFF:
A battery error has occurred due to low battery voltage.
Normal
BOOT
Indicates status of the boot operation execution.
ON:
OFF:
Execution has been completed.
The boot operation has not been executed.
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: ......