Product Description:

The MAC041B-0-BS-4-E/050-B-0/WI651LV 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 supplies controlled torque and speed for packaging lines, printing machinery, and general factory automation. Permanent-magnet excitation and electronic commutation support accurate shaft rotation in closed-loop motion systems. The integrated feedback arrangement allows a compatible drive controller to monitor movement and correct deviations caused by changing loads.

Heat is dissipated through natural convection, so the installation must provide enough open space for warm air to rise away from the motor housing. The motor has a size of 041 and a frame length of B, providing a compact mechanical profile for smaller motion axes. Power reaches the windings through a keyed circular connector, which provides a secure electrical connection during machine operation. The connector on side B directs the power cable toward the rear of the housing and supports orderly cable routing along linear axes. Feedback wiring follows a separate signal path to reduce interference from the motor power conductors and preserve accurate position data.

The motor has no blocking brake, so an external brake, mechanical lock, or drive-generated torque must hold the load when the axis is stationary. Its feedback system combines tacho feedback with an encoder channel, allowing the drive to monitor both shaft velocity and position. Tacho voltage supports analog velocity regulation, while digital encoder counts provide the position information required for controlled movement. This configuration uses an incremental encoder with standard mounting, which provides a consistent mechanical interface and straightforward signal cable installation. The encoder arrangement is suitable for applications that perform a reference routine after startup rather than retaining an absolute shaft position while power is removed.