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Rockwell Automation DC3RD Digital Regenerative DC Drive User Guide 1/4 - 2 HP, 115/230 VAC User Manual

Page 52

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44

Troubleshooting

Problem

Possible

Causes

Suggested

Solutions

Line fuse does not
blow, but the motor
does not run when
the forward or
reverse pushbutton
is pressed

1. Forward or
reverse speed
adjust potentiometer
is set to zero speed.

2. Forward or
reverse speed
adjust potentiometer
is not connected to
drive input properly;
connections are
open.

3. Middle and right
INH-RUN terminals
are not jumpered.

4. INHIBIT terminals
are jumpered.

5. S2 is shorted to
S0.

6. Drive is in current
limit.

1. Increase the
forward or reverse
speed adjust
potentiometer setting

2. Check connections
to input. Verify that
connections are not
open.

3. Jumper middle and
right INH-RUN
terminals.

4. Remove jumper
from INHIBIT
terminal.

5. Remove short.

6. Verify if motor is
jammed. Increase
FWD TQ or REV TQ
setting if they are set
too low.

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