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Why can I no longer read from the ATV61 drive with modbus when drive is running?

Issue:
Communication via modbus

 Product Line:
ATV61/71, ATV32, ATV212, ATV312, ATV12
 
Environment:
All models and serial numbers
 
Cause:
The most likely cause is electrical noise coupled on the communication cable.
 
Resolution:
Move the communication cable(s) as far as possible away from any motor wires or voltage supply wires. 
 
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