Product Description:

The MAC112D-2-ED-4-C/130-A-0/WI520LX/S005 is an AC servo motor built by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Classified as a motor for analog drives, it provides closed-loop velocity and position functions to machinery that still relies on analog command stages. The unit combines a tachogenerator with encoder feedback so drive electronics can monitor both real-time speed and shaft position. Because it is supplied without a blocking brake, it is suited to continuous motion applications where holding torque is not required when power is removed.

The mechanical interface follows a centering diameter of 130 mm, allowing precise alignment against compatible flanges. Heat is removed through axial surface cooling, and the integral blower runs on AC 115 V, so the cooling circuit can use a common single-phase supply. During rated operation, the rotor reaches a nominal speed of 3000 rpm, which suits many legacy MAC drives that regulate torque through armature current rather than frequency. Winding code ED sets the phase resistance and inductance so the motor can deliver its intended torque curve while remaining within thermal limits.

A shaft machined with a DIN 6885 keyway transfers torque to couplings without relying on taper friction. The frame is identified as motor size 112 with length variant D, giving the housing the axial dimension and inertia expected for this torque class. Power conductors terminate on a connector on side A, which can simplify cable routing when multiple axes share a common manifold plate. Speed feedback from the tacho is proportional to shaft rotation at 3 V/1000 rpm, providing a consistent gain factor for analog velocity loops. Incremental encoder signals in the specified feedback arrangement provide the fine position information needed for trimming and servo stiffness.