Stopping The Cpu Module (Unintentional Output Prevention); Checking The Input Power Supply Voltage; Powering On; Checking The On Status Of The Power Led Of The Power Supply Module - Mitsubishi Electric Melsec QJ71LP21 Reference Manual

4 SETUP AND PROCEDURES BEFORE STARTING THE OPERATION

4.3.3 Stopping the CPU module (unintentional output prevention)

STOP RUN

4.3.4 Checking the input power supply voltage

4.4 Powering On

4.4.1 Checking the on status of the POWER LED of the power supply module

POWER

4.4.2 Checking the on status of the RUN LED of the network module

RUN MNG
T.PASS D.LINK
SD RD
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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.
Check that the power voltage supplied to the power supply module is within the
specifications.
Check the power supply to the network module.
The POWER LED turns on at the same time when the programmable controller
system is powered on.
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."
MELSEC-Q
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