P9.28 Forward maximum frequency in torque
control
0.00Hz to
maximum
frequency
50.00Hz
P9.29 Reverse maximum frequency
in torque control
0.00Hz to
maximum
frequency
50.00Hz
Two parameters are used to set the maximum frequency in forward or reverse rotation in
torque control mode.
In torque control, if the load torque is smaller than the motor output torque, the motor's
rotational speed will rise continuously. To avoid runaway of the mechanical system, the
motor maximum rotating speed must be limited in torque control.
You can implement continuous change of the maximum
frequency in torque control dynamically by controlling the
frequency upper limit.
P9.30 Acceleration time in torque control 0.00s～65000s 0.00s
P9.31 Deceleration time in torque control 0.00s～65000s 0.00s
In torque control, the difference between the motor output torque and the load torque
determines the speed change rate of the motor and load. The motor rotational speed may
change quickly and this will result in noise or too large mechanical stress. The setting of
acceleration/deceleration time in torque control makes the motor rotational speed change
softly.
However, in applications requiring rapid torque response, set the acceleration/deceleration
time in torque control to 0.00s.
6.11 Parameter Protection（Group PA）
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