DC servo motors are used when smooth motion is needed. For example, if a measurement is to be made while the stage is in motion, the DC motors, with their smooth travel, is the motor of choice. However, because DC motors are servoed, when traveling at high speeds they tend to hunt once they reach the target point, adding a delay time to the motion. Once the motor has moved the desired distance, the power to the motor ceases and the motor will remain static until more pulses come from the controller telling the motor to move. For vacuum compatibility and custom configurations, call the Newport applications engineers .
Downloadable drivers are now available for download.