Search FAQs

You are currently viewing the content available in Vietnam. If you are looking for information for another region, please select the correct country from the top-left dropdown in the page and 'Navigate to Browse FAQs' in the Support menu.

What can cause an ENF [Encoder] Fault on an ATV340 series drive and how do I correct it?

Issue:
Customer is experiencing an ENF [Encoder] Fault on an ATV340 series drive.

Product line:
ATV340

Environment:
Encoder function is being used.

Cause:
Encoder feedback error.

Resolution:

 Verify the configuration parameters for the encoder used.

 Verify the mechanical and electrical operation of the encoder.

 Check the consistency between the encoder signals and the direction of rotation of the motor.

 If necessary, reverse the direction of rotation of the motor ([Output Ph rotation] PHr parameter)