Product Description:

The MAC090C0-GD-3-C/110-A-1/S001 is an AC servo motor manufactured by Bosch Rexroth Indramat within the MAC AC Servo Motors series. As a motor for analog drives, it pairs with legacy drive amplifiers to deliver speed-controlled rotation to machine tools, packaging lines, and transfer stations. The unit converts electrical energy into mechanical torque while sending tacho feedback from its second shaft end to the controller, allowing the analog loop to maintain commanded velocity under load changes.

The motor mounts to a machine frame with a 110 mm centering diameter that aligns the stator housing and supports the 23 kg mass. When power is removed, an integrated brake supplies 6.5 Nm of holding torque to secure vertical axes. During dynamic operation, the windings can accept up to 196 A of pulse current for rapid acceleration, while the continuous three-phase line is limited to 20.2 A RMS. At its rated excitation, the rotor reaches 3000 min⁻¹ so that material feeds or spindles maintain process speed without hunting. The motor’s 1.5 mH inductance and 0.24 Ω resistance affect the electrical time constant that the analog controller must consider when tuning current loops.

Heat is removed by natural convection, and the 60-minute thermal time constant shows how slowly the winding temperature rises during overload. Sealing to IP65 prevents dust ingress and water jets from affecting the stator, letting the motor run in washdown zones without extra housings. Motion responsiveness is influenced by a rotor inertia of 53 × 10⁻⁴ kg·m², which must be matched to load inertia so the analog loop stays stable at 9.6 Nm standstill torque. During holding conditions, the windings carry 24.8 A, and each ampere produces 0.43 Nm/A of torque, a constant the drive uses for current-to-torque conversion. The combination of tacho feedback, natural cooling, and low inductance supports precise positioning without active fans.