Rockwell Automation 20C PowerFlex 700H Drives Programming - Manual (Page 77)

Rockwell Automation Publication 20C-PM001F-EN-P - March 2012 77
Troubleshooting Chapter 3
Clear Alarms Alarms are automatically cleared when the condition that caused the alarm is no
longer present.
Common Drive Symptoms
and Corrective Actions Drive does not Start from Start or Run Inputs Wired to the Terminal
Block
Drive does not Start from HIM
Cause(s) Indication Corrective Action
Drive is Faulted Flashing red status light Clear fault.
• Press Stop
• Cycle power
• Set [Fault Clear] to 1 (see page 42 )
• “Clear Faults” on the HIM Diagnostic
menu.
Incorrect input wiring. See pages Installation
Manual for wiring examples.
• 2 wire control requires Run, Run Forward,
Run Reverse or Jog input.
• 3 wire control requires Start and Stop inputs.
• 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.
• Mutually exclusive choices have been made
(i.e., Jog and Jog Forward).
• 2 wire and 3 wire programming may be
conflicting.
• Exclusive functions (i.e, direction control)
may have multiple inputs configured.
• Stop is factory default and is not wired.
None Program [Digital Inx Sel] for correct
inputs (see page 53 ).
Start or Run programming may be
missing.
Flashing yellow status light
and “DigIn CflctB”
indication on LCD HIM.
[Drive Status 2] shows type
2 alarm(s). Program [Digital Inx Sel] to resolve
conflicts (see page 53 ).
Remove multiple selections for the same
function.
Install stop button to apply a signal at
stop terminal.
Cause(s) Indication Corrective Action
Drive is programmed for 2 wire control. HIM
Start button is disabled for 2 wire control. None If 2 wire control is required, no action
needed.
If 3 wire control is required, program
[Digital Inx Sel] for correct inputs (see
page 53 ).