Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 77)

69
Problem Possible
Causes
Suggested
Solutions
Troubleshooting
Line fuse blows 1. Line fuses are
the wrong size.
2. Motor cable or
armature is shorted
to ground.
3. Nuisance
tripping caused by
a combination of
ambient conditions
and high-current
spikes (i.e.
reversing).
4. Field circuit is
open (shunt wound
motors only).
1. Check that line
fuses are correct
for motor size
(page 13).
2. Check motor
cable and armature
for shorts.
3. Add a blower to
cool the drive
components, or
decrease the duty
cycle of the
system.
4. Send drive to
Reliance Electric
repair department.
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