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

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Problem

Possible

Causes

Suggested

Solutions

Troubleshooting

Motor runs too
slow or too fast

1. Switches are set
incorrectly.

2. MIN SPD and
MAX SPD not
calibrated.

3. Motor field not
properly connected
(shunt wound
motors only).

4. TACH VOLTS
trimpot not
calibrated properly.

5. Motor is
demagnetized.

1. Verify all switch
settings.

2. Calibrate MIN
SPD and MAX
SPD.

3. Verify motor field
connections.

4. Recalibrate
TACH VOLTS
trimpot.

5. Check for proper
braking technique
and method by
which power is
cycled.

250-0287-rev2.qxd

3/12/01

10:27 AM

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