13 TROUBLESHOOTING
13.3 Troubleshooting by Symptom
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13
13.3
Troubleshooting by Symptom
When the I/O module with diagnostic functions does not start up
When the RUN LED is off
When the ERR LED is flashing or turns on
When the LED is flashing
When the LED turns on
Check item
Action
Check whether five seconds have elapsed after power-off of the power supply
module.
When applying the input power source to the power supply module again, do
so five seconds or more after the shut-off of the power.
Check item
Action
Check whether power is supplied.
Check that the supply voltage to the power supply module is within the rated
range.
Check whether the capacity of the power supply module is enough.
Calculate the current consumption of the mounted modules, such as the
remote head module, I/O modules, and intelligent function modules, to check
that the power capacity is enough.
Check whether the modules are mounted properly.
Check the mounting state of each module.
Cases other than the above
Reset the remote head module and check that the RUN LED turns on.
If the RUN LED still remains off, the possible cause is a module failure. Please
consult your local Mitsubishi representative.
Check item
Action
Check whether a moderate error has occurred.
Check the error code in the "Module Diagnostics" window and take the action
described in the list of error codes.
Check item
Action
Check whether a minor error has occurred.
Check the error code in the "Module Diagnostics" window and take the action
described in the list of error codes.
Содержание MELSEC iQ-RX40NC6B
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