Rockwell Automation Publication 20Y-TG001C-EN-P - April 2017
17
Troubleshooting and Error Codes
Chapter 1
Common Symptoms and
Corrective Actions
AFE does not start from start, or run inputs that are wired to the terminal
block.
Instability in the AC line input current and DC bus voltage.
Cause
Indication
Corrective Action
AFE is faulted
Flashing red status light
Clear the fault.
Press Stop.
Cycle the power.
Set parameter 121 [Fault Clear] to ‘1’.
‘Clear Faults’ on the HIM Diagnostic
menu.
Incorrect input wiring. See the ‘Control
Wiring’ section in the PowerFlex Active Front
for information.
Important:
Jumper from terminal 17 to 20
is required when using the 24V DC internal
supply.
None
Wire inputs correctly and/or install
jumper.
Incorrect digital input programming.
None
Program parameters 221…226
[Digital Inx Sel] for correct inputs.
Run programming can be missing.
There is some other start inhibit.
Check status bits of
parameter 100 [Start
Inhibits].
Correct the source of the inhibit.
Cause
Indication
Corrective Action
AC line voltage more than 5% above normal.
Instability in AC line
current and DC bus
voltage.
Can trip on fault F7
‘Overload’.
Increase parameter 060 [DC Volt
Ref] proportional to the percentage
of the AC line voltage that is above
nominal.
Negative reactive I Ref on parameter 065
[Reactive I Ref] with a soft (high impedance)
AC line.
Instability in AC line
current and DC bus
voltage.
Can trip an F7 overload.
Change parameter 065 [Reactive I
Ref] value to zero. Verify if the AFE
is running on a soft line per the AC
line source considerations.
