Siemens 6SL3246-0BA22-1FA0 SINAMICS G120 CU250S-2 PN PROFINET STO SIL3 VFD Control Unit

The Siemens 6SL3246-0BA22-1FA0 is a SINAMICS G120 CU250S-2 PN control unit with an integrated PROFINET interface, drawing 24 V DC at up to 2.00 A. It supports sensorless vector, V/f, and encoder-based vector or torque control, plus Safety Integrated STO, SBC, and SS1 without an external safety relay.

Technical Specifications

Selection Notes

CU250S-2 PN adds PROFINET and the S (Servo) control level to the G120 CU250 family — pick it over a CU240 unit when the application needs full closed-loop vector or torque control with an encoder (DRIVE-CLiQ, HTL/TTL/SSI, or resolver via terminal) rather than open-loop V/f. Safety Integrated STO/SBC/SS1 is built in as standard; the extended safety functions and EPOS positioning both require their respective extended license per the order data, so factor that into the BOM if the application needs motion control beyond basic start/stop/speed.

Applications

Closed-loop speed and torque control of pumps, fans, and conveyor drives on a PROFINET network where machine safety requires STO/SS1 without a separate safety relay.