DUAL FEEDBACK - VOICE COIL POSITIONING STAGE
-The controller can only close the loop on one feedback device at a time. In this case it can close the loop on the position and monitor the force or close the loop on the force and monitor the position.
. A program or motion profile will be written on a PC or laptop and downloaded to the motion controller. This program will contain parameters such as speed, acceleration, deceleration, PIDs, desired position/force, etc…
. Based on the program parameters, the motion controller will send a +/- 10V reference signal to the servo amplifier.
. The servo amplifier will take the reference input signal and provide the necessary current to generate the required force from the motor to move to the desired position.
. The motor will move to the desired position or achieve the desired force at the programmed speed and acceleration.
: Motor position/force is sent back to the controller to verify that the desired position/force has been reached and maintained.