12 Troubleshooting and Maintenance
12 - 24
GX-series EtherCAT Slave Unit User’s Manual
Periodically inspect the following items to ensure that they do not deviate from the criteria.
If the items deviate from the criteria, adjust the environment so the criteria are met or adjust the Unit
itself.
Networks are constructed from an EtherCAT Master Unit and Slave Units.
If a Unit is malfunctioning, the entire network will be affected. The malfunctioning Unit must be replaced
quickly.
To restore network functions as quickly as possible, it is recommended that spare Units are kept on
hand ready to replace malfunctioning Units immediately.
Heed the following precautions when replacing nodes after a periodic inspection has revealed a
problem.
• Check that the new Unit does not have errors after replacement.
• If returning malfunctioning devices for repair, attach a detailed description of the malfunction to the
device and send the device to the OMRON representative listed at the end of this manual or to your
OMRON representative.
• If contacts are defective, wipe them with a clean pure cotton cloth that has been soaked in industrial
alcohol.
After replacing a Unit, make the switch and other settings the same as before the Unit was replaced.
Refer to the IO-Link System User’s Manual (W570) for information on replacing an IO-Link Master Unit.
Inspection item
Inspection
item
Inspection details Criteria
Inspection
method
Environment
Are the ambient and in-panel
temperatures appropriate?
−10 to 55°C Thermometer
Is the ambient and in-panel humidity
appropriate?
25 to 85% (with no
condensation)
Hygrometer
Has dust collected? No dust Visual inspection
Installation
Has the Slave Unit been secured? No looseness Phillips screwdriver
Are the communications cable
connectors inserted properly?
No looseness Visual inspection
Are the external wiring screws loose? No looseness Phillips screwdriver
Are the connection cables damaged? No visible damage Visual inspection
12-2-3 Handling when Replacing Units
Precautions when replacing Units
Settings after Unit replacement
12-2-4 Replacing the IO-Link Master Unit or IO-Link Devices
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