Installation Manual

Troubleshooting Charts Using Fault Codes
94 9000X AF Drives MN04001004E—May 2011 www.eaton.com
F12—Brake Chopper Supervision
F12
Circuit
OK?
No
Yes
Y
es
Check brake resistor and connections
in brake chopper circuit
Y
es
Make corrective measures. Check the
dimensioning of the braking resisto
r
F12?
Brake chopper
OK?
Replace defective parts
according to instructions
in service manual
No
No
Check conditions of brake
chopper according to instructions
in service manual
Replace power board
according to instructions
in service manual
Clear fault memory
Note: Earthfault on brake resistor = F7