Product Description:

The MAC041A-0-FS-4-E/050-A-0/WI651LV is an AC servo motor manufactured by Bosch Rexroth Indramat and belongs to the MAC AC Servo Motors series. This motor is used in industrial automation systems to provide accurate velocity and position control on light-duty axes such as feeders, labeling heads, or compact gantries. By transforming drive amplifier signals into synchronized mechanical motion, it supports applications that demand repeatable indexing and rapid response without mechanical transmission backlash.

The motor uses winding code FS, which matches the stator copper and insulation layout to the thermal limits of the frame. With frame size A, the outside diameter and shaft height remain compact so the motor can fit into confined machinery envelopes. The active magnetic stack has a length code of 041, giving the rotor enough axial iron to generate the rated stall torque without adding excessive mass. Heat is removed solely through natural convection, so clearance around the housing is necessary and no external blower is required. Power conductors exit through a connector on side A, allowing the cable to be routed in parallel with the machine bed and reducing stress on the leads during axis travel.

The motor has no mechanical holding brake, so any static load must be secured by drive torque or an external locking device when power is removed. For velocity feedback, the motor can be equipped with tachofeedback and an incremental or absolute encoder, allowing coarse speed regulation through the tachometer and fine position control through digital counts. The standard build includes a incremental encoder with standard mounting, which simplifies alignment with legacy control cards. The unit is classified as a motor for analog drives, so it accepts sinusoidal current from analog amplifiers instead of pulse-width-modulated digital outputs and remains compatible with earlier Rexroth drive generations still common in mature production lines.