Product Description:

The MAC071B-0-FS-4-C/095-A-1/WI522LV is an AC servo motor built by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Intended for analog drive controllers, this unit translates voltage-controlled commands into accurate shaft movement for positioning tables, pick-and-place axes, and similar industrial automation tasks. A flange-mounted housing, an integrated blocking brake, and internal feedback devices allow the motor to support closed-loop motion without separate external transducers. This arrangement is useful in compact machines where dependable speed regulation and repeatable positioning are both required. Because the motor combines motion generation and sensing in one body, it suits retrofit equipment that was designed around compact analog servo packages.

The blocking brake delivers 3 Nm of static holding torque, allowing vertical or overhung loads to stay in place when the drive is disabled. A flange centering diameter of 95 mm aligns the motor with gearboxes or machine frames, which helps reduce radial misalignment during installation. The rotor has a nominal speed of 2000 rpm, matching legacy analog drives that regulate velocity by reference voltage. Heat is dissipated through natural convection, so no external blower is required. That cooling approach also reduces maintenance points because there is no separate fan assembly mounted on the motor. Winding code FS sets the electrical values expected by the matching analog amplifier and supports stable torque production across normal operating ranges.

Speed feedback is supported by a tacho generator that produces 3 V/1000 rpm, giving the controller a proportional voltage signal for velocity loops, while the auxiliary encoder helps maintain accurate position reporting during low-speed moves. The encoder and tacho generator serve different control functions, letting the same motor handle steady speed regulation and indexed movement in older automation platforms. The compact frame is size 071, which gives a practical balance of torque density and inertia for medium-duty axes. Power leads exit through a connector on side A, keeping cabling clear of adjacent mechanics and allowing straightforward routing toward the control cabinet. Position sensing relies on an integrated incremental encoder with standard mounting, so the motor can work with Indramat analog drive cards and many compatible third-party amplifiers.