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Chapter 6 A0 torque control and limit
When the speed control/torque control switching terminal is invalid, the control mode is
determined by A0-00. If the terminal is valid, the value corresponding to A0-00 is inverted.
In any case, when the torque control inhibit terminal is valid, the inverter is fixed to the
speed control mode.
A0-01
Torque setting source
selection in torque
control mode
0
：
Digital setting (A0-03) 1: AI1
2: AI2 3: AI3 4: Pulse setting 5:
Communication reference 6: MIN (AI1,
AI2)
7: MAX (AI1, AI2)
1-7 option full scale, corresponding to
A0-03 digital setting
Default
：
0
A0-03
Torque digital setting
-200.0%
～
200.0%
Default
：
150.0%
A0-01 is used to select the torque setting source mode. The torque setting uses a
relative value, and 100.0% corresponds to the rated torque of the inverter.
When the torque is set to 1~7 mode, 100% of communication, analog input and pulse
input correspond to the percentage of A0-03.0-01
A0-05
Torque control forward
maximum frequency
0.00Hz
～
Maximum frequency
Default
：
50.00Hz
A0-06
Torque control reverse
maximum frequency
0.00Hz
～
Maximum frequency
Default
：
50.00Hz
It is used to set the forward or reverse maximum running frequency of the inverter under
the torque control mode.
When the inverter torque is controlled, if the load torque is less than the motor output
torque, the motor speed will continue to rise. To prevent accidents such as flying in the
mechanical system, the maximum motor speed during torque control must be limited.
A0-07
Torque control
acceleration time
0.00s
～
65000s
Default
：
0.00s
A0-08
Torque control
deceleration time
0.00s
～
65000s
Default
：
0.00s
In the torque control mode, the difference between the motor output torque and the load
torque determines the speed change rate of the motor and the load, so the motor speed may
change rapidly, causing problems such as excessive noise or mechanical stress. By setting
the torque control acceleration/deceleration time, the motor speed can be changed gently.
However, for situations where fast torque response is required, the torque control
acceleration/deceleration time must be set to 0.00 s.
A5
组
Control optimization parameter
A5-00
DPWM
switching
upper limit frequency
0.00Hz
～
15.00Hz
Default
：
12.00
Only valid for VF control. The wave-forming mode of the asynchronous machine VF is
