Technical FAQs

Ask a Question

What can cause the secondary control power transformer fuse to blow on an enclosed drive?

Issue:
The secondary fuse of the control transformer is blowing.

Product Line:
S-Flex 21, S-Flex 212, E-Flex, M-Flex

Environment:
All models and serial numbers

Cause:
Caused by short circuit to ground.  Possible loose wire or defective or damaged contactor coil.

Resolution:
Trace short circuit with ohm meter.  Replace coil if necessary.

Was this helpful?
What can we do to improve the information ?