Other States - INVT Goodrive20-UL VFD Series Operation Manual

Goodrive20-UL Series VFD
Fault
code
[36] Electronic
LL
underload fault

6.2.4 Other states

Fault code
PoFF System power off
Fault type



Fault type

Possible cause
are set improperly.
The parameter gained
from autotuning is
inaccurate.
The VFD is not
connected to motor.
The VFD will report
the underload
pre-alarm according
to the set value.
Possible cause
System power off or low
DC voltage.
-112-
Fault tracking
Solutions

Check whether control
parameters are set
correctly.

Increase
maladjustment
detection time.

Check the load and
the underload
pre-alarm point.
Solutions

Check the grid.