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MELSEC-Q
4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION
4.3.3 Stopping the CPU module (unintentional output prevention)
Set the RUN/STOP switch *1 of the CPU module to STOP position.
*1: Use the RESET/STOP/RUN switch for the Basic model QCPU, Universal model
QCPU, and safety CPU.
4.3.4 Checking the input power supply voltage
Check that the power voltage supplied to the power supply module is within the
specifications.
4.4 Powering On
Check the power supply to the network module.
4.4.1 Checking the on status of the POWER LED of the power supply module
The POWER LED turns on at the same time when the programmable controller
system is powered on.
4.4.2 Checking the on status of the RUN LED of the network module
The RUN LED turns on in green when the network module is operating normally.
If this LED does not turn on, refer to Chapter 8, "Troubleshooting."
STOP RUN
POWER
RUN MNG
T.PASS D.LINK
SD RD
ERR. L ERR.
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