Goodrive20-EU series VFD    Function parameters 
51 
Detailed instruction of parameters 
Upper-limit 
setting of 
braking torque 
P03.21 sets P03.19) 
1: Set via AI1 (100% relative to three times of 
motor current) 
2: Set via AI2 (same as above) 
3: Set via AI3 (same as above) 
4: Set via HDI (same as above) 
5: Set via MODBUS communication (same as 
above) 
6 – 8: Reserved 
Note: Setting mode 1 – 8, 100% corresponds to 
three times of the motor current. 
Electromotion     
torque 
upper-limit 
setting via 
keypad 
The function code is used to set the limit of the 
torque.   
Setting range: 0.0 – 300.0% (motor rated 
current) 
Braking torque 
upper-limit 
setting via 
keypad 
Flux 
weakening 
coefficient in 
constant power 
zone 
The usage of motor in flux weakening control.   
Function code P03.22 and P03.23 are effective 
at constant power. The motor will enter the flux 
weakening state when running at rated speed. 
Change the flux weakening curve by modifying 
the flux weakening control coefficient. The bigger 
the flux weakening control coefficient is, the 
steeper the weakening curve is. 
Flux weakening
coefficient of the motor
 
 
Min. limit 
0.10
1.00
2.00
m
 
Setting range of P03.22: 0.1 – 2.0 
Setting range of P03.23: 10% – 100% 
The lowest flux 
weakening 
point in 
constant power 
zone