Mitsubishi Electric MELSEC-L Series LD40PD01 - Troubleshooting with Leds; RUN LED Is Flashing or Turns off; ERR. LED Turns on

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14 TROUBLESHOOTING
14.4 Troubleshooting with LEDs
14.4 Troubleshooting with LEDs
RUN LED is flashing or turns off
RUN LED is flashing
RUN LED turns off
ERR. LED turns on
Check item Action
Is the simulation being executed? Check that the RUN LED turns on after the completion of the simulation.
Check item Action
Has the power been supplied? Check if the voltage supplied to the power supply module is within the rated
range.
Is the capacity of the power supply module sufficient? Calculate the total current consumption of the connected modules including
the CPU module, input/output modules, and intelligent function module to
check if the power capacity is sufficient.
Has the module been properly connected? Check if the module has been properly connected.
Other than the above Reset the CPU module and check if the RUN LED turns on. If the RUN LED
still does not turn on, the possible cause is a failure of the module. Please
consult your local Mitsubishi representative.
Check item Action
Is there an error? Check Latest error code (Un\G100) and take actions described in the
following section.
Page 238 List of Error Codes