Chapter 10 Troubleshooting; Checking With Leds - Mitsubishi Electric AnyWire ASLINK User Manual

10
TROUBLESHOOTING
This chapter describes the details of errors that may occur when using the NZ2AW1GNAL and troubleshooting.
10.1

Checking with LEDs

This section describes troubleshooting using the LEDs.
Determining the module error status
The error status can be determined as follows by the status of the RUN LED and ERR. LED.
RUN LED ERR. LED
*2
Off On
On On
On Flashing
*1 If multiple errors occur, the error status is displayed in the order of major error > moderate error > minor error.
*2 If a module is in failure, the LED may not turn on.
If the PW LED does not turn on
If the PW LED does not turn on, check the following items.
Check item
Are any LEDs other than the PW LED on?
Is the module power supply (24VDC) wired?
Is the module power supply (24VDC) turned on?
Is the voltage of the module power supply (24VDC) within the
specified range?
If the RUN LED does not turn on
If the RUN LED does not turn on, check the following items.
Check item
Has a hardware error occurred?
When the RUN LED flashes
When the RUN LED flashes, check the following items.
Check item
Is the unit test running?
*1
Error type Description
Major error This error stops operation of the module and requires consultation with your local Mitsubishi
representative.
Moderate error This error stops operation of the module but can be dealt with by the customer.
Minor error This error does not stop the module from operating.
Action
If any LEDs other than the PW LED are on, the possible cause is a hardware error. Please
consult your local Mitsubishi representative.
Wire the module power supply (24VDC).
Turn on the module power supply (24VDC).
Keep the voltage value within the performance specifications.
Action
Power off and on the module power supply (24VDC).
If the RUN LED does not turn on, the module may be in failure.
Please consult your local Mitsubishi representative.
Action
After the unit test is completed, turn off the module power supply. After turning off the module
power supply (24VDC), turn off MODE switch 1 and turn the module power supply from off to
on.
10 TROUBLESHOOTING
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10.1 Checking with LEDs
10