Details about Function Parameters
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output appropriate voltage. This function can ensure larger output torque under heavy loads and
smaller output currents under zero load.
Tracking startup, auto torque elevation and slip compensation involve some motor parameters.
Please confirm that these parameters conform to the parameters on the nameplate.
0
Max. output
voltage
Voltage
Basic frequency; max. output voltage
Amplitude
of manual
toque
elevation
Cut-Off Point of
Manual Torque
Elevation
Basic
frequency
Max.
frequency
Frequency
F2-05
Slip Compensation Gain
Factory
Setting
s
0.0
%
Modification
○
Setting
Range
0.0
~
300.0
%
F2-06
Filter Time of Slip Compensation
Factory
Setting
s
1.0s
Modification
×
Setting
Range
0.1
~
25.0s
F2-07
Clipping of Electric Slip
Compensation
Factory
Setting
s
200
%
Modification
×
F2-08
Clipping of Regenerated Slip
Compensation
Factory
Setting
s
200
%
Modification
×
Setting
Range
0
~
250
%
; the rated motor slip frequency is taken as 100
%
Slip Compensation: If the output frequency remains unchanged, the load change may cause a slip
change and the rotation speed will drop. Slip compensation supports online adjustment of the
inverter’s output frequency according to load torque, minimizes change in rotation speed with
load and improves speed control accuracy.
Slip compensation is effective in chases where auto torque elevation is enabled (when F2-01=2
or 3);
Slip compensation may be adjusted by F2-05 “Slip Compensation Gain”. It is recommended that
the adjustment be done according to the drop of the rotation speed when the motor temperature is
relatively stable under load operation. If the slip compensation gain is 100%, it means that the
compensation value at the rated torque is the rated slip frequency. .
Formula of Rated slip frequency: Rated slip frequency =Rated frequency— (Rated rotation speed