What are Absolute and Incremental Servo Motors?

Servo motors are also known by names such as absolute servo motors and incremental servo motors. So what are absolute and incremental servo motors? What are the differences between them? In this week’s blog post, Şahin Rulman will discuss absolute encoder servo motors and incremental encoder servo motors.

Information About Absolute Encoder Servo Motors

Absolute encoder-equipped servo motors have an encoder with a disk that rotates to indicate the position of the servo motor when power is activated. In other words, the encoders in servo motors function as sensors that inform the driver of the motor’s speed and position. A servo motor with an absolute encoder used in an industrial robot or multi-axis transfer system has the ability to resume operation quickly after a power outage or prevent errors in the process. However, for this feature to be actively utilized, the power must be activated in absolute encoder servo motors. Absolute encoder servo motors, which enhance operational efficiency, typically require a backup battery to function.

Information About Incremental Encoder Servo Motors

In fact, servo motors with incremental encoders are conventional servo motors. You may be wondering, “If servo motors with incremental encoders are the same as normal servo motors, why are their names different?” The main reason for this is that most servo motors already have incremental encoders. Since most are designed this way, incremental encoder-equipped servo motors have gradually come to be referred to simply as “servo motors.” The incremental encoders found in classic servo motors can detect the motor’s rotation, speed, and direction of rotation. Typically, the detection waveform output is not modified, so the current position is lost when power is cut off. For more details about incremental servo motors, please visit the following link.

We have come to the end of our blog post on servo motors with absolute encoders and incremental encoders. Throughout the post, we have provided general information about the types of servo motors with absolute encoders and incremental encoders. We would like to remind you that you can review our servo motor models via the relevant link and contact us at 0212 576 04 06 if you have any questions.