Rockwell Automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC - Manual (Page 78)

70
Problem Possible
Causes
Suggested
Solutions
Troubleshooting
Line fuse does
not blow, but
motor does not
run 1. Speed adjust
potentiometer,
voltage external
reference signal, or
current external
reference signal
set to zero speed.
2. Speed adjust
potentiometer,
voltage or current
external reference
signal not
connected to drive
input properly;
connections are
open.
3. S2 is shorted to
S1.
4. Drive is in
current limit mode.
1. Increase the
speed adjust
potentiometer,
voltage, or current
setting.
2. Check
connections
to input. Verify that
connections are
not open.
3. Remove short.
4. Verify that motor
is not jammed.
Increase
CURRENT LIMIT
setting if it is set
too low.
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