Troubleshooting 4-7
Motor and/or drive will not accelerate to commanded speed.
Motor operation is unstable.
Drive will not reverse motor direction.
Cause(s) Indication Corrective Action
Acceleration time is excessive. None Reprogram P039
[Accel Time 1] or
A067
[Accel Time 2].
Excess load or short
acceleration times force the
drive into current limit, slowing
or stopping acceleration.
None Compare d003
[Output Current] with
A089
[Current Limit].
Remove excess load or reprogram
P039
[Accel Time 1] or A067 [Accel
Time 2].
Check for improper A084
[Boost
Select] setting.
Speed command source or
value is not as expected.
None Verify d002
[Commanded Freq].
Check d012
[Control Source] for the
proper Speed Command.
Programming is preventing the
drive output from exceeding
limiting values.
None Check P035
[Maximum Freq] to
insure that speed is not limited by
programming.
Cause(s) Indication Corrective Action
Motor data was incorrectly
entered.
None 1. Correctly enter motor nameplate
data into P031
, P032 and P033.
2. Enable A097
[Compensation].
3. Use A084
[Boost Select] to
reduce boost level.
Cause(s) Indication Corrective Action
Digital input is not selected for
reversing control.
None Check [Digital Inx Sel] (See
page 3-13). Choose correct input
and program for reversing mode.
Digital input is incorrectly
wired.
None Check input wiring. (See page 1-13)
Motor wiring is improperly
phased for reverse.
None Switch two motor leads.
Reverse is disabled. None Check A095
[Reverse Disable].
To Next Page
Loading...
Need help?
General
