4-6 Troubleshooting
PowerFlex 40 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual
Publication 22B-UM001I-EN-E
Drive does not Start from Start or Run Inputs wired to the terminal block.
Drive does not Start from Integral Keypad.
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
- A054
[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
- A054 [Digital Inx Sel] is
set to option 5 “Local” and the
input is active.
None Check parameter settings.
Incorrect input wiring.
See 1-18
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
Integral keypad is not enabled. Green LED above Start key is
not illuminated.
• Set parameter P036
[Start
Source] to option 0 “Keypad”.
• Set parameter A051
- A054
[Digital Inx Sel] to option 5
“Local” and activate the input.
I/O Terminal 01 “Stop” input is
not present.
None Wire inputs correctly and/or install
jumper.
22B-UM001.book Page 6 Tuesday, May 30, 2017 5:22 PM
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