Product Description:

The MAC90B-0-PD-2-C/110-A-1/S01 is an AC servo motor produced by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. Intended for analog drives, the unit converts commanded current into proportional mechanical torque so machine tools, packaging stations, and material-handling axes can follow velocity or position set points. A 110 mm pilot diameter centers the housing on gearbox or mounting flanges for accurate alignment. The holding brake engages when power is removed, preventing the shaft and connected load from moving while the axis is inactive.

During continuous operation, the rotor reaches a nominal speed of 2000 rpm, supporting moderate-speed positioning with low acoustic noise. At standstill, the motor can sustain 7.2 Nm of torque without overheating while drawing a current of 11.9 A. Short acceleration bursts are supported by a peak pulse current of 86 A, which momentarily increases torque for rapid indexing or load pickup. The electromagnetic design provides a torque constant of 0.67 Nm/A, so each ampere of phase current produces approximately two-thirds of a newton-meter at the shaft. The stator windings have an inductance of 5.1 mH and a resistance of 0.97 Ω. These electrical characteristics affect the controller voltage needed to regulate current and influence the response of the current loop.

The integrated brake provides a holding torque of 6.5 Nm and uses a 24 V DC coil that draws 0.7 A during release. A motor mass of 18 kg adds thermal inertia and helps damp vibration in rigid mounting frames. The sealed housing has a protection rating of IP65, keeping dust and low-pressure water jets away from internal components. Copper and steel require approximately 60 min to reach a steady operating temperature, providing tolerance for cyclic loads before thermal saturation occurs. The rotor has an inertia of 36 × 10⁻⁴ kg·m², allowing the servo system to track changing command profiles without excessive overshoot. This inertia must be considered with the connected load when selecting acceleration and deceleration rates.