Siemens 6SN1118-0DG21-0AA1 Performance Module is a Simodrive 611-D plug-in, one-axis closed-loop control unit for digital drives, designed to drive feed drives and main spindle drives. As a 1-axis, plug-in performance module in the Simodrive 611-D family, it provides closed-loop servo control for precise motion in CNC or automation setups, with variant versions including Version B and the associated part number 6SN11180DG210AA1. Siemens discontinued this model on September 30, 2021.
