Basic Parameter Group 01
PARAMETER DESCRIPTION 69
5.2.6 Load pattern selection V/F
In V/F control, you can choose the best output characteristics for different applications and load.
For constant torque loads (conveyor belt, etc.)
For variable torque loads (fans and pumps, etc.)
Special two-point V/F curve
Load pattern selection
When 01-12(P.14)=4, suppose that 01-04(P.19)=220V, 01-26(P.98)=5Hz, 01-27(P.99)=10%, when the inverter is
running at 5Hz, the output voltage equals to 01-04(P.19)×01-27(P.99)=220V×10%=22V.
If RT is “on”, 01-24(P.46) “the second torque boost” is valid.
Output frequency
Hz
01-10
(P.0)
0 01-03(P.3)
Output voltage
%
100%
Applicable to constant torque loads
(conveyor belt, etc.,)
01-10
P.0
0
01-03
(P.3)
100%
Output frequency
Hz
Output voltage
%
Curve equation of output voltage and output frequency is
V=
Base voltage-Base voltage*P.0* Output frequency
2
Base frequency
2
+ Base voltage * P.0
01-10
P.0
0
100%
01-03
P.3
Output voltage
%
Output frequency
Hz
Forward
Reverse
Ascending / descending loads
01-10
P.0
0
100%
Reverse
01-03
P.3
Output voltage
%
Output frequency
Hz
Forward
Ascending / descending loads