Product Description:

Bosch Rexroth Indramat manufactures the MAC090B-0-PD-3-C/110-B-1/S001 as part of its MAC AC Servo Motors series. This servo unit converts electrical command signals from analog drive amplifiers into mechanical rotation, giving machine axes closed-loop velocity control. By combining a permanent-magnet rotor with precise tacho feedback, the motor supports constant speed tracking under varying loads, making it suitable for transfer lines, packaging equipment, and automated assembly stations. Within these installations, it typically drives ball screws or gearboxes while delivering moderate torque with minimal maintenance.

The motor has a rated speed of 1500 rpm, which can be maintained continuously when the stator windings receive their nominal current. Heat produced by copper and iron losses is removed through natural convection, so no fan or external coolant is required and surrounding airflow remains undisturbed. A centering pilot measuring 110 mm simplifies alignment with IEC flanges and helps keep runout within micrometer limits. For load holding after power is removed, a blocking brake is fitted as standard. Its spring-applied design locks the shaft until release voltage is supplied. Speed feedback is provided by integrated tacho feedback on the second shaft end, allowing analog drives to monitor real-time shaft speed without an external encoder.

During operation, the built-in tacho generator delivers 3 V/1000 rpm, giving the controller a linear voltage proportional to speed. Power conductors exit through a connector on side B, which keeps cable bends short when the motor is placed at the rear of a machine frame. The stator uses winding code PD, matching the impedance and back-EMF profile expected by legacy MAC drive modules. Classified as a motor for analog drives, it uses standard tacho components to meet velocity-loop accuracy requirements without digital conversion. The permanent-magnet rotor enables responsive torque production as the connected amplifier adjusts current for changing mechanical loads. This arrangement allows the speed-control loop to respond directly to the generator signal during acceleration, steady operation, and deceleration.