Rockwell Automation Allen-Bradley PowerFlex 4, User Manual

Page: 67 / 94

Troubleshooting 4-5
Motor does not Start.
Drive does not Start from Start or Run Inputs wired to the terminal block.
Common Symptoms and Corrective Actions
Cause(s) Indication Corrective Action
No output voltage to the motor. None Check the power circuit.
•
Check the supply voltage.
•
Check all fuses and disconnects.
Check the motor.
•
Verify that the motor is
connected properly.
Check the control input signals.
•
Verify that a Start signal is
present. If 2-Wire control is used,
verify that either the Run
Forward or Run Reverse signal
is active, but not both.
•
Verify that I/O Terminal 01 is
active.
•
Verify that P036 [Start Source]
matches your configuration.
•
Verify that A095 [Reverse
Disable] is not prohibiting
movement.
Cause(s) Indication Corrective Action
Drive is Faulted Flashing red status light Clear fault.
•
Press Stop
•
Cycle power
•
Set A100 [Fault Clear] to option 1
“Clear Faults”.
•
Cycle digital input if A051 - A052
[Digital Inx Sel] is set to option 7
“Clear Fault”.
Incorrect programming.
•
P036 [Start Source] is set to
option 0 “Keypad” or option 5
“RS485 (DSI) Port”.
•
A051 - A052 [Digital Inx Sel] is
set to option 5 “Local” and the
input is active.
None Check parameter settings.
Incorrect input wiring.
See
1-14 for wiring examples.
•
2 wire control requires Run
Forward, Run Reverse or Jog
input.
•
3 wire control requires Start and
Stop inputs
•
Stop input is always required.
None Wire inputs correctly and/or install
jumper.
Incorrect Sink/Source DIP switch
setting. None Set switch to match wiring scheme.
userman.book Page 5 Friday, June 21, 2002 2:48 PM