The water-cooled SIMOTICS M-1FE built-in motors are used in combination with the SINAMICS S120 drive system for applica- tions that require the highest quality of machining, accuracy and running smoothness, as well as very short ramp-up times.

There are two main versions of SIMOTICS M-1FE built-in motor available:

• High-Torque series
  6-pole/8-pole and 16-pole synchronous motors are available that have been developed for turning and grinding machines with moderate maximum speeds.
  These motors are characterized by an extremely high torque utilization. In this case, the speed range is approximately 1:2.
• High-Speed series
  This series includes 4-pole synchronous motors for milling applications. These motors are optimized for high maximum speeds and a speed range of over 1:4.

A Voltage Protection Module VPM is required for certain motor types if they are operated up to maximum speed.