Product Description:

The MAC090B-0-PD-3-C/110-A-0 is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Classified as a motor for analog drives, it pairs with legacy current-controlled amplifiers to deliver closed-loop torque and speed regulation. In automated conveyor cells, indexing tables, or machine tools, the unit translates command voltages into precise shaft rotation, providing the electromechanical actuation needed for repeatable production cycles. Its construction follows the dynamic requirements of midsize motion axes where moderate inertia, steady thermal loading, and continuous-duty operation are expected. The motor format suits established installations that continue to use analog servo architecture rather than newer digital platforms.

Mechanical alignment is facilitated by a centering diameter of 110 mm, which positions the stator concentric to the driven load and helps maintain accurate mounting. The shaft reaches a nominal speed of 1500 rpm, allowing velocity control without entering field-weakening ranges during normal operation. Stator winding designation PD indicates the resistance and inductance values used by the drive to limit current and calculate acceleration profiles. Heat is removed through natural convection, so the housing transfers heat directly to ambient air without fan power or ducting. The motor is supplied without a blocking brake, an arrangement often used on horizontal axes where holding torque is provided by the drive or external clamps.

For speed feedback, the design integrates tacho feedback and a second shaft end; the additional shaft extension allows external encoder mounting while the built-in tachogenerator supplies a proportional voltage of 3 V/1000 rpm. This signal is of standard quality and provides sufficient linearity for general-purpose speed loops in analog control systems. Mains power reaches the stator windings through a connector on side A, so cables can be routed parallel to the machine frame with minimal bending and a clean exit path.