What are the possible causes of InFb fault, with no brake resistor?
Resolution:
For the InFb [Internal- th. sensor] fault, check the Drive Thermal State under menu 1.2 Monitoring (Drv. thermal state, tHd)
• Inspect/repair the drive
• Remove and inspect the control board
• Replace the braking unit's temperature sensor
• Inspect/repair the braking unit
• The monitoring of this fault must be deactivated by the [Brake res. fault Mgt] (bUb) parameter, if there is no braking unit connected to the drive
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)
Released for: Schneider Electric USA


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