To obtain higher output torque and better stabilization, especially in low speed range,
the voltage generated at the motor resistor must be taken into account. So, a voltage
boost must be provided. This voltage boost is dependent on the corresponding parameters.
● [S0.21]=0.1 % ~ 20.0 %: manual torque boost
This value demonstrates the voltage boost value at zero frequency. For other frequency
range, the voltage boost value is linear / square decreasing with increasing
output frequency before a certain frequency.
For linear V/F curve, this function is only valid before half of base frequency, for example:
if "Base frequency" [S2.00] is 50.00 Hz, then torque boost function is only
valid before 25.00 Hz.