Rockwell-automation DC3E Non-Regenerative DC Drive User Guide 1/4 - 2 Uživatelský manuál stáhnout pdf (Strana 77)

69

Problem Possible

Causes

Suggested

Solutions

Troubleshooting

Line fuse blows 1. Line fuses are

the wrong size.

2. Motor cable or

armature is shorted

to ground.

3. Nuisance

tripping caused by

a combination of

ambient conditions

and high-current

spikes (i.e.

reversing).

4. Field circuit is

open (shunt wound

motors only).

1. Check that line

fuses are correct

for motor size

(page 13).

2. Check motor

cable and armature

for shorts.

3. Add a blower to

cool the drive

components, or

decrease the duty

cycle of the

system.

4. Send drive to

Reliance Electric

repair department.

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