Replacing Faulty Units; Precautions; Settings When Replacing Ethercat Slave Units - Omron CJ1W-ECT21 Operation Manual

6 Maintenance and Replacement
6-2

Replacing Faulty Units

Replace a faulty EtherCAT Slave Unit as soon as possible. We recommend having spare Units avail-
able to restore network operation as quickly as possible.
6-2-1

Precautions

Observe the following precautions when replacing a faulty Unit.
• After replacement make sure that there are no errors with the new Unit.
• When a Unit is being returned for repair, attach a sheet of paper detailing the problem and return the
Unit to your OMRON dealer.
• If there is a faulty contact, try wiping the contact with a clean, lint-free cloth dampened with alcohol.
Precautions for Safe Use
To prevent electric shock when replacing a Unit, be sure to stop communications in the network
and turn OFF the power supplies to all of the nodes (master and slaves) before removing the
faulty Unit.
6-2-2

Settings When Replacing EtherCAT Slave Units

When a Unit has been replaced, verify that the following steps have been made correctly.
• Set the node address and unit number.
• Connect the communication cables.
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CJ-series EtherCAT Slave Units Operation Manual for NJ-series CPU Unit (W542)