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MELSEC-Q
11 TROUBLESHOOTING
(4) Change the Current value field of the "COM. ERR. LED OFF request" back to "Not
requested".
Because the "COM. ERR. LED OFF request" current value does not return to "Not
requested" automatically after turn-off of the COM. ERR. LED, it must be manually
returned to "Not requested" after the COM. ERR. LED has turned off.
After confirming "Not lit", select "Not requested" in the "COM. ERR. LED OFF
request" setting value field and click the Execute test button.
When the processing is completed, a "Completed." message appears.
(5) Confirm the "COM. ERR. LED OFF request" current value.
The "COM. ERR. LED OFF request" current value must be as shown below.
• "COM. ERR. LED OFF request" current value "Not requested"