Product Description:

The MAC90A-0-ZD-2-C/110-A-0/S05 is an AC servo motor produced by Bosch Rexroth Indramat for the MAC AC Servo Motors series. Designed for analog drives, it converts command signals from legacy controllers into controlled shaft motion for indexing tables, feeders, and small gantries. In automated equipment, it provides adjustable torque and speed so the drive amplifier can regulate motion directly for closed-loop positioning tasks. This makes the motor suitable for machinery that needs repeatable movement without relying on mechanical ratio changes to set operating speed.

During continuous operation, the motor can deliver 3.7 Nm of shaft torque while drawing a steady current of 8.1 A from the drive. With a torque constant of 0.51 Nm/A, current demand remains closely tied to torque output, which helps analog amplifiers respond predictably to load changes. The rated mechanical speed is 2000 rpm, which suits screw drives and belt stages that run best at moderate rotational speed. The stator has an inductance of 1.9 mH, and the windings also present 1.85 Ω of resistance, so the drive should supply a smooth waveform to limit heating and current ripple. Heat is removed by natural convection, position feedback comes from a built-in tacho generator, the housing uses a 110 mm centering diameter for alignment, all power and signal conductors exit on side A, and the motor is supplied without a blocking brake.

For short-duration moves, the drive may command up to 53 A of pulse current so the motor can produce acceleration torque well above its continuous level. Dynamic response is influenced by a rotor inertia of 20 × 10⁻⁴ kg·m², while the 12.5 kg motor mass works with a thermal time constant of 45 min to moderate temperature rise during changing load conditions. The enclosure is rated IP65, which helps protect internal parts from dust and low-pressure water jets when the motor is installed directly on a machine frame.