Function Parameters 9-47
AC10 Inverter
9.11 Torque control parameters
FC00 Speed/torque control selection
1:Torque control
2:Terminal switchover
0: Speed control. Inverter will run by frequency setting. Output torque will automatically match
the torque of load, and output torque is limited by max torque (set by manufacture.)
1: Torque control. Inverter will run by torque limit setting. Output speed will run at the speed
required to develop the load setpoint. Output speed is limited by max speed (set by FC23 and
FC25). Please set the proper torque and speed limits.
2:Terminal switchover. User can set DIx terminal as torque/speed switchover terminal to
switch between torque and speed control. When the terminal is true, torque control is enabled.
When the terminal is false, speed control is enabled.
Delay time of torque/speed control
switchover(s)
This function is valid with terminal switchover.
Torque accel/decel time (s)
The time is for inverter to run from 0% to 100% of motor rated torque.
0: Digital given (FC09)
(adjust with keypad)
1: Analog input AI1
2: Analog input AI2
Torque reference coefficient
(analogue input)
Torque reference command value (%)
FC07: when input given torque reaches max value, FC07 is the ratio of inverter output torque
and motor rated torque. For example, if FC06=1, F402=10.00, FC07=3.00, when AI1 channel
output 10V, the output torque of inverter is 3 times of motor rated torque.
Offset torque reference source
0: Digital given (FC17)
(adjust with keypad)
1: Analog input AI1
2: Analog input AI2
Offset torque coefficient
Offset torque cut-off frequency (%)
Offset torque command value (%)
Offset torque is used to output larger start torque which equals to setting torque and offset
torque when motor drives big inertia load. When actual speed is lower than the setting
frequency by FC16, offset torque is given by FC14. When actual speed is higher than the
setting frequency by FC16, offset torque is 0.
When FC14≠0, and offset torque reaches max value, FC15 is the ratio of offset torque and
motor rated torque. For example: if FC14=1, F402=10.00 and FC15=0.500, when AI1 channel
outputs 10V, offset torque is 50% of motor rated torque.