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Product/Service Catalog

SIMOTICS S-1FT7 Synchronous Servo Motor


Siemens Industry, Inc.

The SIMOTICS S-1FT7 motors are permanent magnet synchronous motors with high overload capability and an integrated encoder system for speed and position control depending upon needs of the motion control application.  The motors are available with various configurable options including encoder type, holding brake, shaft extension, and planetary gearbox.  When combined with the SINAMICS S120 drive system the encoder is available with an electronic nameplate (DRIVE-CLiQ interface) which enables quick machine configuration due to automatic load of motor data into drive system and reduction of hardware components.  Continuous rated power is available up to 46 Hp @ 3,000 rpm.


  • Two rotor inertia categories of Compact and High Dynamic to assist in optimized control of load
  • Low torque ripple to optimize performance in machine tool applications that require extreme high surface quality and optimum machining results
  • Wide torque and speed characteristic with natural cooling, forced ventilation, and water-cooling methods
  • Encoder system available as incremental and absolute multiturn with up to 24-bit resolution to support precise application requirements
  • Raised reliability of motor via decoupled encoder which insulates encoder from thermal and vibration stresses
  • Electronic nameplate for quick machine startup



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