Mitsubishi Electric MELSEC iQ-R Series User Manual page 99

When the RUN LED of the master station turns off
Start
A
NO
RUN LED on
Is power being
YES
supplied to the power
supply module?
NO
Supply power to the
power supply module.
A
End
*1 Page 112 Hardware Test
YES
Is the LED
YES
on the power supply
module on?
NO
Is the CPU module
being reset?
The hardware of the power
YES
supply module is faulty.
Replace the hardware.
The overcurrent protection
Cancel the reset operation.
circuit has been activated.
Check the current
consumption of the
mounted modules.
NO
YES
Are the modules
properly mounted?
NO
Remove the modules and
Perform the hardware test.
mount them again.
4 TROUBLESHOOTING
4.1 Checking with LED
4
*1
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