The Err. Led Is On Or Flashing - Mitsubishi Electric MELSEC Q Series User Manual

6.3.3
Check the following.
(1) The ERR. LED is on
The transmission speed setting switch is incorrectly set.
The point mode setting switch is incorrectly set.
If the ERR. LED remains on even after the above actions are taken, the possible cause is a hardware failure.
Please consult your local Mitsubishi service center or representative, explaining a detailed description of the
problem.
(2) The ERR. LED is flashing
When the operation setting switch is switched after power-on, the ERR. LED starts flashing. Reset the switch to
the status before the switching.
If the ERR. LED remains flashing even after that, the possible cause is a hardware failure.
Please consult your local Mitsubishi service center or representative, explaining a detailed description of the
problem.
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The ERR. LED is on or flashing

Check item
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CHAPTER 6 TROUBLESHOOTING
Action
Correct the setting then power off and on the system or reset
the CPU module.
( Page 45, Section 4.3)
Correct the setting then power off and on the system or reset
the CPU module.
( Page 35, Section 3.4)
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