Product Description:

The MAC025A-0-WS-4-E/040-D-0/WI651LV/S001 is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. It supplies closed-loop rotary power for positioning tables, pick-and-place axes, and conveyor stations in automated production cells. Its compact size suits installations where space is limited and precise velocity control is required.

The winding code WS identifies the stator coil geometry and wire gauge used, which affect the voltage constant and torque curve. Frame data identify both length and diameter; the length index 025 indicates a short magnetic stack that reduces mass, while the frame designation A marks the smallest housing in the MAC family for tight spaces. This layout helps keep inertia low for light moving assemblies. Heat produced in the winding is dissipated by natural convection, so the motor relies on ambient airflow and does not need an auxiliary fan. The motor has no blocking brake, so holding torque must be supplied by an external mechanical lock or by drive current when the shaft is stationary.

The signal interface supports multiple feedback functions. A combined tacho feedback plus encoder channel can return either incremental pulses or absolute position data to the drive, allowing both speed regulation and homing without extra sensors. This arrangement lets one device handle feedback tasks that might otherwise require separate components. When the incremental option is selected, shaft position is reported by an incremental encoder mounted in the standard housing recess, simplifying alignment during service. The unit is a motor for analog drives, confirming compatibility with earlier current-controlled amplifiers that accept ±10 V velocity or torque commands. It belongs to the MAC AC Servo Motors line, which uses standardized mounting flanges and connectors across the family.