Inovance MD500T75G - Page 159

MD500 User Manual 7. Description of Parameters
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Setting Torque Limit in Torque Control
Function Code Parameter Name Setting Range Default
A0-01 Torque reference source
in torque control
0: Set by A0-03
1: AI1
2: AI2
3: AI3
4: Pulse reference (DI5)
5: Communication reference
6: MIN (AI1, AI2)
7: MAX (AI1, AI2)
0
A0-03 Torque digital setting
in torque control
-200.0% to 200.0% 150.0%
These two function parameters select the channel of setting the torque reference in torque control.
The torque reference is a relative value. 100.0% corresponds to the rated AC drive torque (can be viewed in U0-06). When the
torque reference is a positive value, the AC drive runs in the forward direction. When the torque reference is a negative value, the
AC drive runs in the reverse direction.
Function Code Parameter Name Setting Range Default
A0-05 Forward max. frequency
in torque control
0.00 Hz to max. frequency (F0-10) 50.00 Hz
A0-06 Reverse max. frequency
in torque control
0.00 Hz to max. frequency (F0-10) 50.00 Hz
These function parameters set the maximum frequency of the AC drive in forward and reverse directions in torque control.
The motor speed will rise continuously if the load torque is smaller than the motor output torque. This function limits the motor
speed in torque control to prevent runaway.
Function Code Parameter Name Setting Range Default
A0-07 Acceleration time in
torque control
0.00s to 65000s 0.00s
A0-08 Deceleration time in
torque control
0.00s to 65000s 0.00s
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This helps to prevent problems such as big noise or too large mechanical stress caused by quick change of motor speed.
But in applications where rapid torque response is required, for example, two motors are used to drive the same load, you need to
set these two parameters to 0.00s.
For example, two motors drive the same load. To balance the load level the two motors, set one drive as the master in speed
control and set the other as the slave in torque control.
The slave will follow the output torque of the master as its torque reference, which requires quick response to the master output
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