Siemens extends synchronous-reluctance drive systems


Siemens is extending its portfolio of Simotics synchronous-reluctance motors to include the two new shaft heights, AH90 and AH225. With these new additions, the company is addressing calls from renowned manufacturers of pumps.

The motors are available in a power range of 0.55 to 45 kW, and now also with rated speeds of 1,500 and 3,000 min1. In conjunction with the recently launched Sinamics Reluctance Control License, precise encoderless closed-loop torque control is possible down to a standstill. The license enables field-oriented (vector) closed-loop control even when at a standstill – reliably eliminating the possibility of the synchronous motor “stalling” at any time even if the load inertia is not known.

As digitalization is the key to fast, efficient working, Siemens has equipped the motors and converters with a data matrix code. Attached to the motor enclosure and the display or converter housing, this code provides users with access to technical data, spare part information and operating instructions at a glance. The data is accessed with the aid of a mobile terminal and the Simotics Digital Data App for motors, or alternatively the Siemens Industry Online Support App for converters.

The availability of 2D or 3D engineering data makes for shorter, more flexible design and engineering processes. As an integrated drive system, Simotics reluctance motors and Sinamics converters are specifically coordinated to work together. Compared to induction motors, they offer highly efficient operation, particularly in the partial load range. The coordinated system comprising a Sinamics G120 converter and synchronous-reluctance motor enables the ideal closed-loop control of pumps.



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