Mitsubishi Electric MELSEC-Q Series - Checking Operation; Executing the Program Written to the Programmable Controller CPU; Resetting the CPU Module

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8 Checking Operation
Execute the program written to the CPU module to check the operation.
Check the program operation with the switches and lamps or the monitor function of GX Developer.
 Executing the program written to the programmable controller CPU
Use the "RESET/STOP/RUN" switch on the front of the CPU module for the operation.
The usage of the RESET/STOP/RUN switch
• RUN : Executes the sequence program operation.
• STOP : Stops the sequence program operation.
• RESET: Performs the hardware reset, operation error reset, and operation initialization.
Operating procedure
1. Resetting the CPU module
Reference
When the flashing "ERR." LED does not turn OFF, refer to the following page.
Troubleshooting (P.28)
RESET/STOP/RUN
switch
[LED display before resetting]
2
Tilt the "RESET/STOP/RUN" switch toward "RESET" on the front of the CPU module.
(for over a second)
1
Check the LED status before resetting the CPU module.
3
After the flash, "ERR." LED turns OFF, then release the switch.
[Resetting]
[Resetting completed]
4
The switch returns to "STOP", and the resetting is completed.
MODE: Green: ON
RUN : OFF
ERR.:
Red: Flashing slow
MODE: Green: ON
RUN : OFF
ERR.:
Red: Flashing fast
MODE: Green: ON
RUN : OFF
ERR.: OFF
Hold for over a second