Product Description:

The MAC112D-2-FD-1-B/130-A-1/I1250/S05 is an AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. As a motor intended for analog motion controllers, it converts commanded armature currents into torque and speed for positioning tables, feed axes, and other industrial automation hardware that still rely on current-loop regulation instead of digital fieldbuses. This model is supplied with a blocking brake as standard, and it can hold loads statically with a torque of 45 Nm.

Heat is removed through axial surface cooling, which is assisted by an external blower rated at AC 115 V; this arrangement maintains winding temperature during continuous duty and permits higher RMS currents without thermal derating. The housing aligns to machines through a centering pilot of 130 mm, allowing quick concentric placement on ISO flanges and minimizing shaft runout. The mechanical envelope corresponds to motor size 112 with length code D, providing a balance between peak torque density and overall mass. Rotor position data is delivered to the drive by incremental encoder feedback, supporting closed-loop current and velocity control to within a few arc-minutes of error. Power conductors exit on side A through a dedicated connector, so cabinet layouts can route motor and feedback lines in separate channels to reduce electrical interference.

The electrical characteristics are tuned by the winding code FD, allowing the shaft to reach a nominal speed of 2000 rpm under rated voltage and load. For velocity supervision, a tacho generator produces 3 V/1000 rpm, giving the analog controller a linear voltage reference that improves stability at low speeds. The unit is categorized as a motor for analog drives, so it suits legacy MAC installations that still use analog control architecture and separate feedback handling.