Product Description:

The MAC025A-0-WS-4-E/040-B-1/WI673LV belongs to the MAC AC Servo Motors series from Bosch Rexroth Indramat. It is a compact rotary actuator intended for precise velocity and torque control on automation axes in packaging, handling, and similar machinery. The code string identifies the motor’s place in the series and indicates its mechanical size, electrical winding, brake arrangement, and installed feedback configuration. Its compact form is useful where mounting space is limited and predictable servo response is required.

The electromagnetic package uses the WS winding set, which sets the stator resistance and inductance pairing for analog amplifiers. Heat produced by copper losses is removed through natural convection, so housing fins can release heat without external blowers or liquid cooling circuits. Power is supplied through a plug on a connector on side B, keeping cable runs clear of the driven load on side A. The stator stack depth is identified by the 025 length code, and the mounting flange uses the compact Size A frame. This layout suits machines with a limited installation envelope while still supporting moderate continuous torque demand.

A standard blocking brake is integrated so the shaft is held whenever the drive is disabled, which helps prevent drift on vertical or suspended loads. Position data for the control loop comes from an incremental encoder mounted in the standard rear recess, and its count stream can be used with reference marks for homing. The overall feedback arrangement uses tacho feedback with an incremental or absolute encoder, combining speed information with position sensing for closed-loop control. Classified as a motor for analog drives, this model works with MAC amplifiers that use proportional voltage commands rather than fieldbus-based control.