Product Description:

The MAC071C-0-NS-4HC/095-B-0/WI518LV is an AC servo motor from Bosch Rexroth Indramat in the MAC AC Servo Motors series for analog drive systems in automated machinery. It supplies regulated torque and speed to axes controlled by voltage-command amplifiers. Integrated tacho feedback and encoder feedback allow the analog regulator to close both speed and position loops. This arrangement supports steady motion in feed axes, indexing units, and handling modules where simple closed-loop control is preferred over more complex digital drive platforms.

Thermal management relies on natural convection, so heat leaves the housing without external fans. Under rated conditions, the rotor reaches 3000 rpm, a speed that matches many legacy analog amplifiers. A centering diameter of 95 mm provides a pilot fit for face mounting. Power is delivered through a connector on side B, which helps keep cable routing clear of the driven load. The built-in tacho generator outputs 1.5 V/1000 rpm, providing a proportional signal for speed control. Position feedback is handled by an incremental encoder with standard mounting, supporting accurate speed and position regulation. Because cooling is passive, the installation does not require separate fan power or airflow ducting.

Winding code NS identifies the electrical characteristics used with this motor configuration, including the resistance and current behavior expected by compatible analog amplifiers. Axial size category C indicates the active stack length for this version, giving the motor moderate mass and inertia for mid-range positioning tasks. Frame designation 071 identifies the motor size used for mounting and coupling dimensions. The motor is supplied without a blocking brake, so holding force must be provided elsewhere when the axis must remain fixed at standstill.