Product Description:

The MAC041A-0-FS-4-E/050-B-1/WI668LV/S001 is a compact servo unit engineered for closed-loop motion duties in the MAC AC Servo Motors series and built by Bosch Rexroth Indramat. As a brushless AC motor, it converts drive current into precise shaft torque and speed, forming the electromechanical element of drive packages that position tooling, conveyors, or pick-and-place axes in industrial automation cells. Its design combines permanent-magnet excitation with electronic commutation, allowing rapid reversal without mechanical brushes. Low torque ripple supports smooth movement and repeatable process cycles during demanding automated operations.

The motor has a frame size of 041 and a frame length of A, an arrangement that keeps inertia low while providing adequate magnetic depth for moderate continuous loads. The stator follows the FS winding code, matching the voltage and current ratings used by compatible legacy servo amplifiers. Thermal energy leaves the housing through natural convection, so no external blower or liquid circuit is required as long as ambient air can circulate around the ribbed shell. This cooling method also eliminates moving fan components from the motor assembly. Power leads exit through a keyed connector on side B, simplifying cable routing when the mounting flange is close to a fixed panel.

A standard blocking brake engages automatically when supply power is removed, securing vertical or unbalanced loads during maintenance stops. Motion data for the velocity loop can be obtained through tacho feedback with incremental or absolute encoder signals, allowing the connected amplifier to monitor shaft movement. Position information is delivered by an incremental encoder with standard mounting located under the rear end bell. The feedback arrangement provides the drive with the information needed to correct speed and position deviations during operation. Because the unit is a motor for analog drives, its sensor set and brake coil connect directly to classic ±10 V controlled amplifiers without control-system adaptation. This interface supports integration with established automation platforms that use analog command signals for closed-loop axis control.