Mitsubishi Electric NZ2GF2S-60IOLD8 - Chapter 11 Troubleshooting; Checking the Leds

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