Product Description:

The MAC090B-0-PD-4-C/110-A-0/WI522LV is an AC servo motor produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Engineered as a motor for analog drives, it delivers controlled rotary motion to machinery that relies on current-mode amplifiers. Integrated tacho and encoder elements inside the frame provide continuous speed and position signals, helping packaging lines, printing stations, and material-handling axes maintain closed-loop regulation during routine starts, stops, and speed changes. This layout lets the external amplifier compare commanded motion with actual motor behavior without adding separate feedback hardware outside the housing.

The motor has a centering diameter of 110 mm, which helps align the stator concentric to the driven load. Heat is removed solely by natural convection, so airflow around the housing must stay clear when the unit runs at its nominal speed of 1500 rpm. Power leads exit through a connector on side A, which can simplify cable routing when the motor is mounted with that side facing the cabinet. This placement can reduce cable bending near the flange in tight machine layouts. The built-in tachogenerator outputs 3 V/1000 rpm, giving the analog controller a proportional voltage signal for speed correction during acceleration or load changes.

Position information is supplied by an incremental encoder with standard mounting, and the winding code is PD, which allows the matching drive to use the proper current limits and commutation data. The motor has no blocking brake, so any holding torque must be provided by external mechanics or by the drive's static current. The feedback quality is standard, which suits general-purpose motion where a speed variance of ±1 rpm is acceptable. The feedback assembly also supports optional absolute encoders for axes that need position retention after power is removed, and the convection-based cooling layout keeps operating noise low by avoiding forced-air blowers.