Allen-Bradley PowerFlex 700H Service Manual

1-6 Troubleshooting and Error Codes
No Output Voltage
Use this procedure when there is no voltage present at the drive output
terminals, even though the drive indicates the motor is running:
Measure DC Bus
Voltage
Perform forward
diode tests on
Rectifying Module
Rectifying
Module OK?
Replace Rectifying
Module
No
Examine Bus
Capacitors for
Charring and
Damaged Reliefs
Capacitors
OK?
Replace
Capacitors
No
Measure Power
Supply Voltages
Replace Power
Supply
Check Board
Connections
Does Drive
Run?
Does Drive
Run?
Replace Power
Interface Board
(on 700S)
Does Drive
Run?
Replace Voltage
Feedback Board
(on 700S)
No
Ye s
Ye s
No
Ye s
No
No
DC Bus
Voltage within
Specification?
Voltages within
Specification?
Replace Main
Control Board
Ye s
No

Allen-Bradley PowerFlex 700H Specifications

General

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