Product Description:

The MAC090A-0-ZD-2-C/110-A-1 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Designed for closed-loop motion tasks, it interfaces with analog velocity and current controllers used in industrial automation lines. By translating analog setpoints into rotary motion, it drives indexing tables, small conveyors, and pick-and-place axes, while its integral tacho generator supplies real-time speed feedback to the drive. That feedback lets the external amplifier correct speed deviations during load changes, which helps maintain stable motion in repetitive operating cycles. A mid-size frame allows direct mounting to gearheads or couplings without additional adapters.

The motor’s mechanical interface starts with a centering diameter of 110 mm, which guides the pilot fit and helps keep shaft runout low. Under rated excitation, the rotor reaches a nominal speed of 1500 rpm, giving drives a steady operating point for synchronous processes. Speed feedback is scaled by a tacho voltage of 3 V/1000 rpm, so every additional thousand revolutions per minute adds three volts to the signal returned to the controller. That linear feedback signal allows the controller to compare commanded speed with actual speed without a digital feedback interface. Heat produced by copper losses is removed through natural convection, so no auxiliary blower or liquid loop is required. Power conductors exit through a connector on side A, allowing cable routing to follow the motor housing without crossing neighboring devices.

A spring-applied blocking brake holds the shaft when control power is absent, preventing load drift on vertical or overhung axes. Because the brake is spring-applied, it remains engaged when power is removed and releases only when energized. The stator carries a ZD winding, matching impedance and inductance to MAC series drive modules that supply the needed current density. Rotor speed is monitored by built-in tacho feedback of standard quality, providing a linear voltage signal suitable for legacy velocity loops. The unit is supplied as a motor for analog drives, so it works with controllers that use analog command signals rather than digital fieldbus references.