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How can I prevent Undervoltage faults on ATV61 drives?

Published date: 13 May 2020

Prevent Undervoltage fault on ATV61 drive.

Product line:
ATV61, Altivar 61, ATV71, Altivar 71


Temporary voltage drops is causing UVR - Under voltage fault

Go to Drive Menu > 1.8 Fault Management > Undervoltage Mgt, and change the Undervoltage timeout from 0.2s to somewhere between 5-10s. 

If the line voltage is less than 480VAC, we can also look at adjusting the Mains Voltage setting to 460V which lowers the trip level for the Undervoltage fault. 

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