Flow When "Run" Led Turns Off - Mitsubishi MELSEC-Q EQ-V680D1 User Manual

7. TROUBLESHOOTING

7.2.2 Flow when "RUN" LED turns OFF

Error occurs
programmable controller
CPU normal?
Is the power ON?
Is the power
supply voltage within the
specified range?
The power supply capacity may be
insufficient.
Calculate the current consumption.
Is the power
supply capacity of the power
supply module OK?
RFID interface module runaway may
have occurred due to external noise.
Turn the power OFF and then ON again.
Is the "RUN" LED ON?
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Is the
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
End
Eliminate the error cause and reset
the CPU.
Turn the power ON.
Is "RUN" LED OFF?
YES
Adjust the power supply voltage to
within the specified range.
Is the "RUN" LED OFF?
YES
Investigate selection of the power
supply module used once again.
Please consult your local
representative, explaining a detailed
description of the problem.
NO
NO
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