Design Engineering

Control Unit

Siemens SINAMICS CU250S-2 units designed for variable speed drives.

June 11, 2021   by DE Staff

Siemens Industry has released its Sinamics CU250S-2 control unit for use with its Sinamics G120 variable speed drives. The unit provides vector control with different encoder interfaces for feedback. The unit can be combined with existing power modules to support all G120 drive applications, with or without encoder evaluation. Additionally, STO (Safe Torque Off), SBC (Safe Brake Control) and SS1 (Safe Stop 1) features are integrated. With the purchase of an optional software license, extended safety functions can be obtained, along with software for a single positioning function (Epos). Communications interfaces include Profibus DP, Profinet (Ethernet I/P), RS485 (USS protocol, Modbus RTU) and CANopen. Other features include an integrated USB port, plus an integrated slot for an SD card.

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