Product Description:

The MAC025C-0-QS-4-E/040-B-0/WI670LV belongs to the MAC AC Servo Motors series manufactured by Bosch Rexroth Indramat. This servo motor converts electrical input from a compatible drive into controlled mechanical rotation for small tooling heads, feeders, auxiliary spindles, and other compact machine axes. Its closed-loop operation supports accurate positioning and stable speed control as mechanical loads change during a production cycle. The compact housing also allows the motor to fit into automated equipment where installation space is limited and responsive movement is required.

Heat generated by the stator is removed through natural convection, so no external fan or liquid cooling circuit is required. The housing must remain exposed to sufficient airflow to prevent heat from accumulating around the motor during continuous operation. The mechanical envelope uses a frame size 025 and frame length C, providing a compact body for light-duty axes. The motor is supplied without a blocking brake, so stationary loads must be held by drive-applied torque, an external clamp, or another mechanical device when required. Power is routed through a connector on side B, allowing the cable to be directed toward the rear of the machine when the shaft faces forward. This connector position can also keep the service loop away from nearby tooling and moving machine components.

Rotor position and speed data are generated by a sensor configuration that provides tacho feedback with an incremental or absolute encoder. This unit uses an incremental encoder with standard mounting, supplying pulse signals that allow the connected controller to monitor shaft movement and correct positioning errors. The tacho signal provides a proportional velocity reference for stable speed regulation throughout the operating range. As a motor for analog drives, the unit presents feedback voltages and encoder pulses through discrete electrical connections rather than a digital fieldbus. This arrangement supports established drive systems that process analog torque or velocity commands and use separate conductors for feedback signals. The sensor and connector arrangement keeps the control interface compact while providing the information needed for closed-loop motion.