Product Description:

The MAC071B-0-PS-3-C/095-A-1 is an AC servo motor built by Bosch Rexroth Indramat and part of the MAC AC Servo Motors series. It is intended for closed-loop positioning or velocity control where an analog drive sends command signals and the motor responds with precise motion. Within automation cells, the unit delivers repeatable rotary power while its internal tachogenerator returns speed feedback to the drive for real-time correction. Because it works with analog drive control, it fits servo systems that use voltage or current command interfaces rather than digital motion networks.

The motor’s electromagnetic holding device applies 3 Nm of brake torque to secure the shaft during power-off or emergency stops. This helps prevent unintended movement when the axis is stopped between cycles or when main power is removed. A centering boss with a diameter of 95 mm aligns the flange with mounting fixtures and helps maintain accurate mechanical fit. Heat is removed through natural convection, so the motor operates without an auxiliary fan when ambient conditions remain within the allowed range for the series. The stator uses the PS winding configuration, which supports continuous operation at a nominal speed of 4000 rpm. Power leads exit through a side A connector, which keeps cable routing straightforward when that face is oriented toward the control cabinet.

Speed feedback is delivered by a resolver-driven tacho assembly with tacho feedback with a second shaft end, allowing an additional encoder or mechanical load to be coupled if required. At rated speed, the tacho produces 1.5 V/1000 rpm, giving the drive a clear voltage gradient for closed-loop regulation. The rotor and stator dimensions correspond to size 071, so inertia and peak torque scale in line with other motors in the MAC family.