Checking Operation; Executing The Program Written To The Programmable Controller Cpu; Resetting The Cpu Module - Mitsubishi Electric MELSEC Q Series Quick Start Manual

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

RESET/STOP/RUN
switch
Reference
When the flashing "ERR." LED does not turn OFF, refer to the following page.
Troubleshooting (P.28)
1 Check the LED status before resetting the CPU module.
[LED display before resetting]
MODE: Green: ON
RUN : OFF
ERR.: Red: Flashing slow
2 Tilt the "RESET/STOP/RUN" switch toward "RESET" on the front of the CPU module.
(for over a second)
[Resetting]
MODE: Green: ON
RUN : OFF
ERR.: Red: Flashing fast
3 After the flash, "ERR." LED turns OFF, then release the switch.
[Resetting completed]
MODE: Green: ON
RUN : OFF
ERR.: OFF
4 The switch returns to "STOP", and the resetting is completed.
Hold for over a second
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