Product Description:

The MAC090A-0-RD-2-C/110-A-1 is an AC servo motor manufactured by Bosch Rexroth Indramat and included in the MAC AC Servo Motors series. Within an automation cell, it converts the sinusoidal output of an analog drive amplifier into controlled rotary motion so linear slides, indexing tables, or feed rollers can reach commanded positions at predictable speeds. A built-in tachometer provides instantaneous velocity data to the amplifier, allowing tight speed loops, quick correction of load changes, and stable motion during repetitive positioning cycles.

The flange has a centering recess of 110 mm, permitting repeatable mechanical alignment and preventing radial misplacement during installation. Heat produced by the stator is removed through natural convection, eliminating the need for external blowers and simplifying enclosure design in installations where available airflow is limited. Closed-loop speed control is achieved with integrated tacho feedback; the generated analog voltage is proportional to shaft speed and feeds directly into the regulator circuit. Electrical power is routed through a connector on side A, which keeps the cable exit in line with common cabinet layouts and reduces awkward bends near the motor housing. Because it is specified as a motor for analog drives, its internal inductance, back-EMF profile, and tachometer constants are matched to amplifier families that supply continuous current without digital communication.

A standard blocking brake holds the shaft when power is removed, preventing unintended motion on vertical or suspended axes. Speed sensing is complemented by standard tacho quality, so the feedback signal stays within the tolerance band assumed by the controller during normal operation. This combination supports analog servo operation with controlled stopping and proportional speed feedback. It is suited to systems that rely on direct motor feedback rather than network-based position data.