What causes a 4-20mA loss (LFF) on an ATV312 drive?
Issue:
ATV312 4-20mA loss, LFF error code on display
Product Line:
Altivar Machine 312
Resolution:
This will happen if the LFF is programmed to a function other than ignore (no).
If it is programmed to a function other than no, then the drive is designed to have a value of 4 mA minimum (unless CRL3 is changed to 0 instead of 4A) on AI3 input.
ATV312 4-20mA loss, LFF error code on display
Product Line:
Altivar Machine 312
Resolution:
This will happen if the LFF is programmed to a function other than ignore (no).
If it is programmed to a function other than no, then the drive is designed to have a value of 4 mA minimum (unless CRL3 is changed to 0 instead of 4A) on AI3 input.
If this article does not answer your question, check out our FAQ database that has answers to more commonly asked questions:
Frequently Asked Questions - Schneider Electric (se.com)
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.
If you are not located in North America, please contact your local Customer Care Center for assistance:
Support | Schneider Electric Global (se.com)
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