CHV100 Series Close Loop Vector Control Inverter
.65.
Figure 6.10 Multiple V/F curve diagram.
Function
Code
Name
Description
Setting
Range
Factory
Setting
P4.01
Torque boost
0.0%:
auto
0.1
％
~10.0
％
0.0~10.0
％
1.0
％
P4.02
Torque boost
cut-off
0.0%~50.0%
(motor rated frequency)
0.0~50.0
％
20.0%
Torque boost will take effect when output frequency is less than cut-off frequency of
torque boost (P4.02). Torque boost can improve the torque performance of V/F control at
low speed.
The value of torque boost should be determined by the load. The heavier the load, the
larger the value.
Notice: This value should not be too large, otherwise the motor would be
over-heat or the inverter would be tripped by over-current or over-load.
If P4.01 is set to 0, the inverter will boost the output torque according to the load
automatically. Please refer to following diagram.
Figure 6.11 Torque boost diagram.
