Torque Control
To maintain constant torque or force, the sensor that returns the feedback to the motion controller must return a value proportional to the torque or force. The motion controller operates torque-control and position-control systems in much the same way. The main difference is that the feedback in position-control systems returns the current position, while the feedback in torque-control systems returns a voltage proportional to the current force or torque.
You can implement force feedback on NI motion controllers using either analog feedback or by monitoring force.
Note The NI SoftMotion Controller does not support analog feedback. |