Common Symptoms And Corrective Actions - Allen-Bradley PowerFlex 4M User Manual

Common Symptoms and Corrective Actions

Motor does not Start.
Cause(s)
No output voltage to the motor.
Improper boost setting at initial
start-up.
Drive is Faulted
Drive does not Start from Integral Keypad.
Cause(s)
Integral keypad is not enabled. Green LED above Start key is
I/O Terminal 01 "Stop" input is
not present.
Indication
None
None
Flashing red status light
Indication
not illuminated.
None
PowerFlex 4M Adjustable Frequency Drive FRN 1.xx - 2.xx User Manual
Troubleshooting
Corrective Action
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
P106 [Start Source]
matches your configuration.
• Verify that
A434 [Reverse
Disable] is not prohibiting
movement.
Set A453 [Boost Select] to option 2
"35.0, VT".
Clear fault.
• Press Stop
• Cycle power
• Set
A450 [Fault Clear] to option 1
"Clear Faults".
• Cycle digital input if
t201
[Digital Inx Sel] is set to option 7
"Clear Fault".
Corrective Action
• Set parameter
P106
Source] to option 0 "Keypad".
• Set parameter
t201 -
Inx Select] to option 5 "Local"
and activate the input.
Wire inputs correctly and/or install
jumper.
Publication 22F-UM001D-EN-E
4-5
- t202
[Start
t202 [Digital