Product Description:

The MAC090A-0-ZD-1-B/110-A-1/DI1250 is a rotary servo unit produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It is intended for industrial axes that require precise torque and velocity control in packaging, assembly, and material-handling equipment. The motor integrates electrical feedback and mechanical centering features for use with precision gearboxes or direct couplings. In plant environments, it serves as the prime mover for workstations that demand continual, predictable speed regulation under closed-loop command.

A centering flange of 110 mm provides concentric seating against mounting surfaces. Thermal dissipation is handled through natural convection, so the housing releases heat without external fans or coolant. Rotor position is detected by an incremental encoder feedback system whose pulse train is read directly by the analog drive card for velocity and position loops. Under rated load, the shaft speed stabilizes at 1500 rpm, allowing the motor to support moderate linear speeds when it is paired with suitable transmission components. Mains power reaches the stator windings through a molded circular plug located on Side A of the stator jacket, permitting straightforward cable routing along the machine frame.

For stop-and-hold demands, a standard blocking brake is integrated so the axis can remain locked when power is removed. Drive controllers that monitor velocity can reference the tachogenerator output of 3 V/1000 min⁻¹ to refine analog speed loops, especially during low-speed creep moves. Winding designation ZD corresponds to the resistance and inductance values expected by compatible factory-set drive macros. Because it is classified as a motor for analog drives, its signal levels and connector pinouts align with legacy Rexroth amplifier families still common in material-handling and packaging installations.