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What is an INF9 (internal I measure) fault on an ATV320 drive?

INF9 typically is caused incorrect current measurements within the VFD.


Repair/replacement of components for an ATV320 drive are limited.


Contact Schneider Electric Product Support for next steps.


If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions:

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If this FAQ did not solve your issue, you can call us at 1-888-778-2733 Option 2 and then 4 or e-mail us at drive.products.support@se.com to create a case with our Technical Support Team.

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