Product Description:

The MAC090A-0-RD-1-B/110-A-0/I1250/S01 is an AC servo motor developed by Bosch Rexroth Indramat for the MAC AC Servo Motors series. It functions as a motor for analog drives within automated machinery, providing closed-loop shaft rotation that follows velocity or position commands issued by legacy drive amplifiers. By directly converting electrical control signals into mechanical torque, the unit supports tasks such as indexing tables, packaging axes, and material-handling positions in manufacturing cells. This operating style suits equipment that relies on repeatable motion with established analog control hardware.

The motor’s mounting and steady-state performance are described by several operating values. A centering diameter of 110 mm aligns the housing with adjacent gearboxes, while the continuous torque at standstill reaches 3.5 Nm when the windings conduct a continuous current of 11.4 A. With a torque constant of 0.34 Nm/A, the drive controller can predict output torque from phase current, and natural convection cooling dissipates the associated copper losses without external fans. Under rated excitation, the rotor attains a nominal speed of 3000 rpm, supported by a winding inductance of 3.2 mH and a phase resistance of 0.56 Ω that shape current rise times. Incremental encoder feedback reports shaft position, enabling analog regulators to maintain commanded motion profiles.

Dynamic behavior and enclosure protection are also suited to industrial use. During acceleration, the windings can accept a peak pulse current of 76 A, using a rotor moment of inertia of 20 × 10⁻⁴ kg·m² to support rapid speed changes without excessive overshoot. The motor weighs 12.5 kg and carries a protection rating of IP65, so it can be mounted on machines exposed to dust or low-pressure water sprays. Thermal response is characterized by a time constant of 45 min, and the absence of a blocking brake means holding force must be provided by the drive or by external mechanics. Power and signal conductors are routed through a connector on side A, which helps organize cable routing on compatible machine layouts.