Product Description:

The MAC090C-0-GD-4-C/110-A-0/WI522LV is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. It operates as a torque-controlled rotary actuator that receives command signals from analog drive amplifiers and delivers responsive motion for positioning tables, feeders, and material-handling axes. By integrating precise rotor feedback with a compact electromagnetic design, the motor provides the accuracy and responsiveness required in industrial automation systems where repeatable speed and position control are required.

One identifying feature of this model is its winding code GD, which indicates the resistance and inductance values expected by the matching drive so that current loops can reach rated torque without saturation. Thermal management relies on natural convection, so heat is released through the housing fins instead of forced airflow. The power leads exit through a connector on side A, which simplifies cable routing when the gearbox or load is mounted at the opposite end. Accurate mechanical alignment is supported by a 110 mm centering diameter that matches standard Rexroth flanges. Its classification as a motor for analog drives indicates compatibility with voltage-controlled amplifiers that use tachometer or resolver feedback rather than fully digital buses.

Because the unit is supplied without a blocking brake, holding torque must be provided by the drive or an external mechanism when the shaft must remain stationary after power down. Speed feedback is supplied through the combined channel specified as tacho feedback with an incremental or absolute encoder, allowing velocity signals or full position data to reach the controller. The main position sensor is an incremental encoder with standard mounting. Its tacho quality is rated as standard, which is adequate for mid-bandwidth positioning loops commonly used in packaging, printing, and light machining equipment.