Rockwell-automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 Manuale Utente Scaricare il pdf (Pagina 80)

72

Problem Possible

Causes

Suggested

Solutions

Troubleshooting

Motor runs too

fast at set speed

1. MIN SPD and

MAX SPD settings

are too high.

2. Motor field

connections are

loose (shunt wound

motors only).

3. Motor is

demagnetized.

4. Tachometer

leads are reversed.

1. Recalibrate MIN

SPD and MAX

SPD.

2. Check motor

field connections.

3. Check for proper

braking technique

and method by

which power is

cycled.

4. Check

tachometer

connections.

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