Siemens 6RA-4012-0BA00 SIMODRIVE Servo Drive System

Siemens 6RA4012-0BA00 SIMODRIVE servo drive circuit board is a component of the legacy SIMODRIVE motion-control platform, carrying the exact part number 6RA4012-0BA00 and commonly described by distributors as a SIMODRIVE circuit board servo drive or DC drive stack card within the 6RA40 family. Used as the drive-control element in a SIMODRIVE stack, it works with compatible power modules and a Siemens control unit to execute servo commands that govern motor speed, torque, and position across one or more axes, enabling precise, repeatable motion in machinery such as CNC tooling, packaging equipment, and robotics in older installations. Vendor listings note a power-section rating in the 15/30 A range for this part, signaling its role in medium-current drive configurations; when paired with the appropriate 6RA40 power modules, cable assemblies, and configuration software from Siemens, it forms a complete servo drive chain within older automation architectures.