Fault Angle Error on ATV 930 Drive

[SDSMTDOB]

Our drive has been receiving an Angle Error fault. During the fault the drive says it was in: RUN, 0.2Hz, and 2.2A. Our drives are set to run at 20Hz minimum when in RUN mode. The drive is identical to a hand full of other drives as far as function and parameter settings. The drive has been running for 2200 hrs without faults until now. The fault can be reset and the drive still works.

Can anybody elaborate on what needs to be done for the listed Resolutions listed below. 

We have checked:

>drive settings for Angle loop.

>checked most wiring connections.

According to FAQ:

What can cause an ASF or angle error on the ATV630 and ATV930 Process drives?

Issue:
Posible cause for an ASF or angle error on the ATV630/930 drives.

Product Line:
ATV630 and ATV930 Process drives

Environment:
All 

Cause:
For synchronous motors , the wrong speed loop setting when the reference goes to zero.

Resolution:
Verify the speed loop parameters
Verify the motor phases and the maximum current allowed by the drive. 

Published on:9/25/2018Last Modified on:9/28/2021

[BJacqz · Accepted solution]

As this is a difficult case, I suppose you already did what is proposed in your FAQ? I would suggest you to contact your local technical support representative. If they cannot help you directly, they have the possibility to escalade this kind of question to internal higher technical support.

[Chefcyclone]

We are having the same faults with our drive.   They are running a very large cooling tower fan.  It seems to only happen when it is very windy with temps around 50 causing the fan to cycle on and off freq.   Could the wind pushing the fan when they cycle off or on be related perhaps?