Rockwell-automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 Uživatelský manuál stáhnout pdf (Strana 82)

74

Problem Possible

Causes

Suggested

Solutions

Troubleshooting

Motor will not

reach the

desired speed

Motor pulsates

or surges under

load

1. MAX SPD

setting is too low.

2. IR COMP setting

is too low.

3. Motor is

overloaded.

1. IR COMP is set

too high.

2. Motor “bouncing”

in and out of torque

limit.

1. Increase MAX

SPD setting.

2. Increase the IR

COMP setting.

3. Check motor

load. Resize the

motor if necessary.

1. Adjust the IR

COMP setting

slightly CCW until

the motor speed

stabilizes.

2. Make sure motor

is not undersized

for load; adjust

CURRENT LIMIT

trimpot.

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