Closed Loop Servo Motor Operating Instructions

In order for a linear servo motor to operate properly, it needs to be connected to a motion controller and servo amplifier (sinusoidal or trapezoidal). A feedback device (encoder, resolver) is also needed in order to close the servo position loop. See diagram 1 for operation flow.

Step 1. 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, etc…

Step 2. Based on the program parameters, the motion controller will send a +/- 10V reference signal to the servo amplifier.

Step 3. 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.

Step 4. The motor will move to the desired position at the programmed speed and acceleration.

Step 5: Motor position is sent back to the controller (typically 500 times per second) to verify that the desired position has been reached and maintained.