Product Description:

The MAC112D-0-ED-4-C/130-A-0/WI520LV is a servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Classified as a motor for analog drives, it supplies controlled torque and velocity for automated axes that rely on analog command interfaces. The unit fits into machine layouts where precise speed following and position holding are required without added braking hardware. In typical operation, an external amplifier regulates motor current and uses the feedback signals to correct motion changes caused by varying load conditions.

The mechanical frame uses a centering diameter of 130 mm, couples to mounting flanges sized for the MAC 112 housing, and supports the 112 frame code for overall stator width. Rotor stack depth follows the D length designation, providing additional active iron for higher continuous output. Heat is dissipated through natural convection, so no external blower or liquid circuit is needed. Rated velocity reaches 3000 rpm, enabling direct connection to gearboxes or belt transmissions. This speed range suits machine axes that use moderate gear reduction or direct coupling to compact transmission elements. The ED winding code supplies electrical resistance and inductance values matched to Indramat analog amplifiers, while the motor ships without a blocking brake, leaving stopping torque generation to the connected drive or external mechanics.

Speed feedback is delivered through a tachogenerator that produces 3 V/1000 rpm and through an incremental encoder mounted in the standard position, giving pulse trains for digital counting. This dual-channel arrangement supports either velocity loops from the tacho or position loops from the encoder, depending on the controller used. Power enters through a connector on side A, simplifying cable runs when the motor is installed with its shaft toward the process zone. Tacho quality is standard, and the ED winding supports the natural-convection cooling scheme by keeping current density within the limits of the insulation system.