7 - 3
7 - 3
7. TROUBLESHOOTING
7.2.2 Flow when “RUN” LED turns OFF
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Error occurs
Is the
programmable controller
CPU normal?
Is the power ON?
Is the power
supply voltage within the
specified range?
Is the power
supply capacity of the power
supply module OK?
Is the "RUN" LED ON?
End
The power supply capacity may be
insufficient.
Calculate the current consumption.
RFID interface module runaway may
have occurred due to external noise.
Turn the power OFF and then ON again.
Eliminate the error cause and reset
the CPU.
Turn the power ON.
Adjust the power supply voltage to
within the specified range.
Investigate selection of the power
supply module used once again.
Please consult your local
representative, explaining a detailed
description of the problem.
Is "RUN" LED OFF?
Is the "RUN" LED OFF?