Chapter 11 Troubleshooting; Checking The Leds - Mitsubishi Electric NZ2GF2S-60IOLD8 User Manual

11
TROUBLESHOOTING
This chapter describes error contents that may occur while the IO-Link module is used and how to troubleshoot.
11.1

Checking the LEDs

This section describes how to troubleshoot the system by the LEDs.
When the PW LED does not turn on
Check item
Is any LED other than the PW LED turned 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?
When the I/O PW LED does not turn on
Check item
Is the external power supply (24VDC) wired?
Is the external power supply (24VDC) turned on?
Is the voltage of the external power supply (24VDC) within the specified
range?
When the RUN LED does not turn on
Check item
Does the voltage of the module power supplied externally reach to the voltage
of the specifications?
Does any hardware error occur?
When the MODE LED flashes
Check item
Is the IO-Link module conducting the unit test?
When the MODE LED is off
Check item
Has the IO-Link module finished the unit test?
Action
When any LED other than the PW LED turns on, the possible cause is a
hardware failure. Please consult your local Mitsubishi representative.
Wire the module power supply (24VDC).
Turn on the module power supply (24VDC).
Set the voltage value within the range of performance specifications.
Action
Wire the external power supply (24VDC).
Turn on the external power supply (24VDC).
Set the voltage value within the range of performance specifications.
Action
Check that module power supply voltage is within the range of performance
specifications. ( Page 16 Performance Specifications)
After the check, power off and on the module.
If the RUN LED does not turn on even after the module power supply is turned
off and on, the possible cause is a module failure. Please consult your local
Mitsubishi representative.
Action
The IO-Link module is conducting the unit test. The MODE LED turns off when
the unit test is finished. Take corrective action according to the result of the
unit test. ( Page 124 Unit Test)
Action
The IO-Link module has finished the unit test. Take corrective action
according to the result of the unit test. ( Page 124 Unit Test)
11 TROUBLESHOOTING
121
11.1 Checking the LEDs
11