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

Issue:
What is bLF fault on an Altivar 31/Altivar 312?

Product Line:
Altivar 31 and Altivar 312

Environment:
All models

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)

Publié pour:Schneider Electric Belgium