Allen-Bradley PowerFlex 700H Service Manual

Troubleshooting and Error Codes 1-5
Diagnostic Procedures by
Symptom
The following charts list drive symptoms, symptom descriptions and
recommended actions.
Blown Input Fuses
Use this procedure when a drive clears any of its external circuit breaker or
power fuses:
Rectifying
Module
OK?
No
Ye s
No
No
Ye s
Ye s
No
Ye s
No
Ye s
Ye s
No
Disconnect Motor
Leads
Perform Forward
Diode Tests on
Rectifying Module
Perform Forward
Diode Tests on
Output Power
Modules
Examine Bus
Capacitors for
Charring and
Damaged Reliefs
Check Motor and
Lead Resistances
at 1000V
Disconnect AC
Choke from
Rectifying Module
Replace
Rectifying
Module
Replace
Power
Modules
Replace
Capacitors
Remedy Motor
and Lead
Problems
Replace
AC
Choke
Reconnect
AC
Choke
Reconnect
Motor
Leads
Power
Modules
OK?
Capacitors
OK?
Motor and
Lead Resistances
> 1 Mohm?
Are There
Any Line to
Load Shorts?
Are There
Any Line to
Line Shorts?

Allen-Bradley PowerFlex 700H Specifications

General

Brand	Allen-Bradley
Model	PowerFlex 700H
Category	Controller
Language	English