Product Description:

The MAC025C-0-QS-4-E/040-B-1/WI651LV is a compact AC servo motor manufactured by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Designed for analog drive amplifiers, it converts current-loop commands into precise rotary motion for light automation axes that require fast response and repeatable positioning. Its electromagnetic design supports rapid torque changes while keeping the motor’s overall mass low. These operating characteristics make the motor suitable for pick-and-place heads, small indexers, and other compact motion axes in industrial machinery.

The motor has a frame size of 025 and a frame length of C, providing a compact housing for installations with limited space. Heat is removed through natural convection, so no fan or liquid-cooling circuit is fitted. The installation must provide sufficient clearance around the housing to prevent restricted airflow and excessive heat accumulation during continuous operation. A standard blocking brake is integrated into the motor and secures the shaft when drive torque is disabled, helping prevent back-driving or movement caused by gravity loads. Power conductors exit through a connector on side B, allowing the motor cable to be routed away from nearby machine components and moving assemblies.

The sensor package combines tachofeedback with an incremental encoder to provide the analog drive with speed and position information. The tachometer produces a continuous signal that allows the amplifier to monitor velocity and correct deviations caused by changing loads. The encoder supplies incremental position pulses that support repeatable movement, direction monitoring, and reference-position detection within the connected control system. This feedback arrangement is compatible with analog velocity and position loops used in established industrial machinery. Separating the power and feedback connections also helps reduce interference between high-current motor conductors and low-level sensor signals. The resulting signal arrangement supports stable speed regulation and accurate homing across repetitive motion cycles without requiring a modern fieldbus interface.