Product Description:

The MAC071B-0-PS-4-C/095-B-0/WI520LV is an AC servo motor produced by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. Classified as a motor for analog drives, it is used on positioning axes where speed regulation is handled by an external analog velocity loop. Its brushless design supports continuous industrial duty, and the compact housing suits machinery where mounting space is limited. This type of motor is commonly applied where smooth rotary response and repeatable motion are needed.

This model delivers a rated speed of 4000 rpm, giving it the headroom needed for fast traverse moves and quick indexing. Heat is removed through natural convection, so no auxiliary blower is required. A centering diameter of 95 mm aligns the flange with gearboxes or direct-drive mounts for consistent concentricity. Power reaches the stator windings through a connector on side B, which keeps cabling on the non-drive end of the machine. The stator uses winding code PS, which indicates electrical values used with compatible Indramat analog amplifiers. Motor size 071 corresponds to this frame configuration, while the B housing length keeps the overall motor depth moderate.

The tachogenerator produces 1.5 V/1000 rpm as its velocity signal, and the standard quality grade supports general servo feedback tasks. Position data is provided by an incremental encoder mounted in the feedback stack, and its standard interface supports connection to compatible controls. The motor is supplied without a blocking brake, so any required holding torque at standstill must come from an external device. The feedback devices are integrated into the motor, which reduces the need for separate sensing hardware at the axis. This arrangement allows the drive to monitor speed and position during analog servo operation.