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.

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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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