Product Description:

The MAC090C-0-GD/4-C/110-A-1/WI538LX/S01 is an AC servo motor produced by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. The unit supplies controlled torque and speed for industrial automation lines that still employ analog drive amplifiers. Its mechanical size corresponds to the 090 frame class, allowing it to fit existing MAC motor mounting patterns while delivering the dynamic response required for positioning axes, printing machinery, or material-handling stations.

Winding code GD indicates the stator’s copper fill and impedance, so the drive can match the motor’s voltage constant without saturation. A centering diameter of 110 mm aligns the flange accurately with the machine housing and keeps radial runout within prescribed limits. Heat is removed solely by natural convection, eliminating the need for external blowers and allowing cabinet-free mounting when ambient airflow is sufficient. Power conductors enter through a connector on side A, which keeps cabling on the same face as the primary load and simplifies routing in multi-axis assemblies.

The motor is fitted with a standard blocking brake that clamps the shaft whenever the drive disables torque, preventing drift on vertical or indexing axes. As a motor for analog drives, it is wired for velocity and tacho loops instead of digital fieldbus communication, making it compatible with legacy transducer cards. The feedback arrangement uses tacho feedback with an incremental or absolute encoder, offering speed or position signals without mechanical modification. Internal sensing is further detailed as an incremental encoder with standard mounting, which keeps the encoder flange flush with the housing so replacement parts remain interchangeable across the MAC family. Motion quality during low-speed operation is supported by standard tacho quality, which helps maintain consistent tachogenerator output for precise velocity feedback.