Product Description:

The MAC090C-0-KD-3-C/110-A-0/S005 is an AC servo motor built by Bosch Rexroth Indramat and assigned to the MAC AC Servo Motors series. It functions as a motor for analog drives, translating current-regulated command signals into controlled rotary motion for machine tools, material-handling axes, and other industrial automation stages. By combining a permanent-magnet rotor with an integrated tacho generator, the unit supplies both motive power and real-time speed feedback, allowing legacy analog amplifiers to maintain closed-loop regulation without separate sensors.

Its centering flange measures 110 mm, providing a fixed reference that keeps the stator coaxial with attached gearheads or pulleys. Heat produced in the windings is removed through natural convection, so additional fans or liquid circuits are unnecessary in typical installations. The motor reaches a rated speed of 1500 rpm, which suits gearing ratios commonly used in legacy analog positioning systems. The KD winding gives the motor the phase resistance and inductance needed for the associated analog drive to deliver rated current without exceeding its voltage limits. The unit is supplied without a blocking brake, which reduces total inertia and leaves holding duties to external mechanical devices when they are required.

The three-phase supply connects through a connector on side A, simplifying cable runs when the drive rack is mounted beside the motor’s non-drive end. Motion feedback is provided by tacho feedback with a second shaft end. The generator outputs 3 V/1000 rpm, giving the analog controller a proportional voltage that scales linearly with shaft speed, and the additional rear shaft allows the tacho generator to share the axis with user-installed couplings or encoders. The unit uses standard tacho quality, so ripple and linearity remain within normal Indramat tolerances during continuous duty.