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How and when do you reform or trickle charge capacitors on a ATV61 or ATV71 Drive that has been setting in storage for a long time?

Issue:
How and when do you reform or trickle charge capacitors on a ATV61 or ATV71 Drive that has been setting in storage for a long time?

Product Line:
ATV61/71 series

Environment:
All serial numbers for ATV61/71 series

Cause:
N/A

Resolution:
Procedure for applying voltage to an Altivar after a long duration storage.

As a function of the length of storage, you must re-apply voltage progressively to the product to re-form the capacitors. Calculate the storage time from the date code of the product and not from the date of delivery.

Up to 1 year:
Apply voltage in the normal way

Between 1 and 2 years:
Apply voltage to the product for 1 hour without a run command.

More than 2 years:
Use a variable AC power supply to increase the voltage in such a fashion so as to have
- 25% of nominal voltage for 30 minutes
- 50% of nominal voltage for 30 minutes
- 75% of nominal voltage for 30 minutes
- 100% of nominal voltage for 30 minutes



CTA-ID : 2055546
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