4-6 Troubleshooting
PowerFlex 4M Adjustable Frequency Drive FRN 1.xx - 2.xx User Manual
Publication 22F-UM001D-EN-E
Drive does not Start from Start or Run Inputs wired to the terminal block.
Drive does not respond to changes in speed command.
Cause(s) Indication Corrective Action
Drive is Faulted Flashing red status light Clear fault.
• Press Stop
• Cycle power
• Set A450
[Fault Clear] to option 1
“Clear Faults”.
• Cycle digital input if t201
- t202
[Digital Inx Select] is set to option
7 “Clear Fault”.
Incorrect programming.
• P106
[Start Source] is set to
option 0 “Keypad” or option 5
“RS485 (DSI) Port”.
• t201
- t202 [Digital Inx Select] is
set to option 5 “Local” and the
input is active.
None Check parameter settings.
Incorrect input wiring.
See 1-15
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.
Cause(s) Indication Corrective Action
No value is coming from the
source of the command.
The drive “Run” indicator is lit
and output is 0 Hz.
• Check d012
[Control Source] for
correct source.
• If the source is an analog input,
check wiring and use a meter to
check for presence of signal.
• Check d002
[Commanded Freq]
to verify correct command.
Incorrect reference source is
being selected via remote
device or digital inputs.
None • Check d012
[Control Source] for
correct source.
• Check d014
[Dig In Status] to
see if inputs are selecting an
alternate source. Verify settings
for t201
- t202 [Digital Inx Select].
• Check P108
[Speed Reference]
for the source of the speed
reference. Reprogram as
necessary.
• Review the Speed Reference
Control chart on page 1-19
.
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