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Mitsubishi Electric MELSEC iQ-R Series User Manual Page 82

Cc-link ie field network waterproof/dustproof remote i/o module (with safety functions).
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When the I/O LEDs flash in red for all points
Check item
Does the voltage of the module power supplied externally reach the
voltage of the specifications?
Are the device connection and wiring correct?
Is the operating ambient temperature within the specified range?
Has any hardware failure occurred?
The above error is a module stop state (hardware failure), and thus other LEDs may not operate or the error history may not
be saved.
When the RUN LED does not turn on
Check item
Does the voltage of the module power supplied externally reach the
voltage of the specifications?
Has any hardware failure occurred?
When the RUN LED flashes
Check item
Does the voltage of the module power supplied externally reach the
voltage of the specifications?
Are the device connection and wiring correct?
Has any hardware failure occurred?
When the MODE LED flashes
Check item
Is the safety remote I/O module in execution of the unit test?
When the ERR. LED flashes or turns on
Check item
Has any error occurred?
10 TROUBLESHOOTING
10.1 Checking the LEDs
Action
Check that module power supply voltage is within the range of specifications.
Check that the device connection and wiring are correct.
Set the operating ambient temperature within the range of general specifications.
If the same error occurs again even after performing the above actions and turning off
and on the module power supply, the module may be in failure. Please consult your
local Mitsubishi representative.
Action
Check that the module power supply voltage is within the range of performance
specifications.
Page 20 Performance Specifications
After the check, turn off and on the module power supply.
If the RUN LED does not turn on even after the module power supply is turned off and
on, the module may be in failure. Please consult your local Mitsubishi representative.
Action
Check that module power supply voltage is within the range of specifications.
Check that the device connection and wiring are correct.
If the same error occurs again even after performing the above actions and turning off
and on the module power supply, the module may be in failure. Please consult your
local Mitsubishi representative.
Action
When the safety remote I/O module is in execution of the unit test, the MODE LED
turns off after the unit test is completed. Take corrective action according to the result
of the unit test.
Page 88 Unit Test
Action
Identify the error factor of the safety remote I/O module with the engineering tool and
take corrective actions.
Page 85 Checking error codes and warning codes

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