Product Description:

The MAC025A-0-WS-4-E/040-B-0/WI651LV/S001 is an AC servo motor produced by Bosch Rexroth Indramat and assigned to the MAC AC Servo Motors series. Designed as a drive element for analog control loops, the unit converts command voltages into controlled torque and speed for positioning tables, packaging stations, and similar automation axes. Its compact frame and standardized electrical interface allow straightforward integration with legacy and contemporary drive controllers in existing automation systems.

The electromagnetic system uses winding code WS. This winding gives phase resistance and inductance that allow the drive amplifier to reach nominal current without saturation. Frame designation A indicates the external flange and shaft geometry, while length index 025 adds an extended stator stack that increases continuous torque relative to shorter modules in the same frame. Power conductors are routed through a connector on side B, keeping the motor terminals away from the driven machinery when the shaft faces side A and simplifying cable management inside tight cabinets. Heat is removed through natural convection, so the installation must provide free air circulation and avoid sealed enclosures that trap heat.

The control loop relies on an integrated incremental encoder with standard mounting, delivering position pulses that the drive translates into speed and angle data. When higher resolution or velocity feedback is required, the motor can be supplied with tachofeedback and an incremental or absolute encoder, giving flexibility between coarse and fine motion profiling without mechanical changes. A holding device is not present, so any vertical load must be secured by external brakes or by drive torque during power loss. As a motor for analog drives, its feedback and winding characteristics are matched to voltage-command servo drives rather than digital fieldbus systems, allowing the motor to retrofit legacy machinery while still meeting current performance demands.