TECO A510s - Torque Limit Setting

4-301
21-05 Positive torque limit
Range
0~300 %
21-06 Negative torque limit
Range
0~300 %
21-07
Forward regenerating torque limit
Range
0~300 %
21-08
Reversal regenerating torque limit
Range
0~300 %
Use the torque limit function to limit the torque applied to the load, or limit the regenerative torque.
In speed control the torque limit function has a higher priority than the motor speed control and compensation.
This might result in extended acceleration, deceleration times and a reduction in motor speed.
Torque limit can be set in two ways:
- Use torque limit parameters (21-05 to 21-08) to set a fixed torque limit.
- Set the torque limit by using the multi-function analog input (AI2).
There are four torque limits that can be set separately, one for each quadrant:
(I) Positive torque limit in forward direction (21-05 positive torque limit)
(II) Positive torque limit of reverse direction (21-06 negative torque limit)
(III) Negative torque limit in reverse direction (21-07 forward regenerating torque limit)
(IV) Negative torque limit in forward direction (21-08 reversal regenerating torque limit)
Refer to Figure 4.4.127.
Output Torque (T)
Positive torque
Negative torque
Motor Speed
Forward
direction
Reverse
direction
21-08
21-05
21-06 21-07
III
III IV
I: Forward rotation positive torque
II: Reverse rotation positive torque
III: Reverse rotation negative torque
IV: Forward Rotation negative torque
Figure 4.4.127 Torque limit setting