Rockwell-automation DC3RD Digital Regenerative DC Drive User Guide 1/4 Manual de usuario descargar pdf (Pagina 51)

43Troubleshooting

Problem Possible

Causes

Suggested

Solutions

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.

1. Check that line

fuses are properly

sized.

2. Check motor cable

and armature for

shorts.

3. Add a blower to

cool the drive

components;

decrease FWD TQ

and REV TQ settings;

check wiring to be

sure noise is reduced

or eliminated.

4. Send in drive to

Reliance Electric

repair department.

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Rockwell-automation DC3RD Digital Regenerative DC Drive User Guide 1/4 Manual de usuario Pagina 51