Omron V680-CA1D User Manual page 84

Section 5
Troubleshooting
System Connections Check Flowchart
Are the connector and
cable connections OK?
Turn ON the power.
Is the ERROR
indicator lit or flashing?
Are communications
with the Tag normal?
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NO
Connect them correctly.
YES
YES
NO Replace the Controller.
YES
OK
NO
Is the rated
voltage supplied?
YES
Is the RESET input ON?
NO
Replace the Controller.
NO
Supply the rated voltage.
YES
Turn OFF the RESET input.