Technical FAQs

Ask a Question

How can I troubleshoot a bLF fault on an Altivar 31 or Altivar 312?

Issue:
How can I troubleshoot a bLF fault on an Altivar 31 or Altivar 312?

Product Line:
Altivar 31 and Altivar 312

Environment:
All products of Altivar 31 and Altivar 312

Cause:
Brake release current not reached

Resolution:
Possible Remedies below
• Check the drive/motor connection.
• Check the motor windings.
• Check the [Brake release I FW] (Ibr) setting in the
  [APPLICATION FUNCT.] (FUn-) menu
• Apply the recommended settings for [Brake engage
  freq] (bEn)
Was this helpful?
What can we do to improve the information ?