Product Description:

The MAC025C-0-QS-4-E/040-B-0/WI668LV is an AC servo motor in the MAC AC Servo Motors series manufactured by Bosch Rexroth Indramat. It is built as a drive element for analog control loops, converting electrical commands into proportional mechanical rotation so machinery axes can accelerate, decelerate, or hold the speeds required in packaging, pick-and-place, and material-handling equipment. The motor is intended for applications where an external amplifier regulates current and monitors feedback to keep motion stable through changing load conditions. Because it works within an analog servo system, response quality depends on the paired drive, the feedback loop, and the inertia of the connected load. Its compact format suits automation assemblies that need precise rotary response without separate cooling hardware on the motor body.

The unit dissipates heat through natural convection, so no forced airflow or liquid circuit is required and the housing must remain exposed to ambient air during continuous duty. Its frame conforms to the Size C envelope, while length code 025 indicates the stack depth used for this motor. Power is delivered through a compact connector on side B, which helps keep cable routing clear when the motor is mounted against machine panels or closely spaced brackets. Rotor position is reported by an incremental encoder with standard mounting, providing pulse-train feedback that the drive converts into velocity and position data for closed-loop control. This type of feedback supports smooth speed correction during acceleration, deceleration, and steady-state operation.

The motor is supplied without a blocking brake, so static holding torque must be generated by the drive or by external clamps when power is removed. For applications that require more detailed speed monitoring, the feedback interface supports tacho feedback and encoder signals so the controller can compare commanded and actual shaft response during operation. Classified as a motor for analog drives, it remains suitable for systems that use analog velocity or torque references instead of digital fieldbus commands. Where a load must remain fixed at standstill, a separate retaining method is required to prevent unwanted movement.