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MELSEC-Q
4 SETTING AND PROCEDURE BEFORE OPERATION
(2) Starting the test
(a) High Performance model QCPU, Process CPU, and Redundant CPU
Set the RUN/STOP switch of the CPU module to the STOP position. When
resetting the CPU module, use the RESET/L.CLR switch.
3
4
5
STOP RUN
RESET L.CLR
3
4
5
STOP RUN
RESET L.CLR
3
4
5
STOP RUN
RESET L.CLR
Center RESET Center
CPU
module
(b) Universal model QCPU
Reset with the RESET/STOP/RUN switch.
Hold the switch in the RESET position until the ERR. LED starts flashing,
and release it after the LED turns off.
STOP
RUNRESET
Move to RESET.
CPU
module
STOP
RUNRESET
STOP
RUNRESET
STOP
The ERR. LED flickers.
When it goes off, release
the switch.
POINT
To execute the forward loop/reverse loop test, connect the cable correctly to OUT
and IN.
Also, do not connect or disconnect the cable during execution of the test. (Doing so
will result in test failure.)