Troubleshooting Charts Using Fault Codes
106 9000X AF Drives MN04001004E—May 2011 www.eaton.com
F42—Brake Resistor Over Temperature
F42
Is it possible
to slow down the
process?
Yes
No
No
T
oo rough usage of the internal brake resistor
Use longer deceleration time and try again
F42?
Yes
Change parameters – external brake resistor
Mount properly sized external brake resistor
Clear fault memory
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