Mitsubishi Electric MELSEC iQ-R Series User Manual page 247

Hardware test for LED check
Turn the LED ON to perform the hardware diagnostic of the LED of a high speed data logger module.
The values in the buffer memory cannot be referenced in an engineering tool during the hardware test for LED
check.
Operating procedure
1.
Select "Hardware test for LED check" in "Basic Settings"  "Various Operations Settings"  "Mode Settings" for a high
speed data logger module in an engineering tool.
2.
Set the CPU module to the STOP state, and write the parameters.
3.
Reset the CPU module.
After it is reset, the hardware test for LED check is performed automatically. When the following contents are displayed,
check them visually for any errors.
LED name
RUN
ERR
OPR
INFO
CARD RDY
CARD ACS
4.
When the test is completed normally, change the mode set in the step 1 back to "Online," and reset the CPU module.
5.
When the test is completed abnormally (when any color or status is different from the one shown in the table above),
check if measures are taken to reduce noise of the system, and perform the test again. If it is completed abnormally
again, a hardware failure may occur in the high speed data logger module. Please contact your local Mitsubishi Electric
sales office or representative.
Do not use an electric screwdriver when removing the module. Loose the module fixing screws completely to remove the
module.
Display color
Green
Red
Green
Green
Green
Green
Display status
ON
ON
ON
ON
ON
ON
4 TROUBLESHOOTING
4.2 Checking the Module Status
4
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