MAC090A-0-ZD-2-C/110-A-1
MAC AC Servo Motors
The MAC090A-0-ZD-2-C/110-A-1 is an AC servo motor produced by Bosch Rexroth Indramat as part of the MAC AC Servo Motors series. Designed for use with analog drive amplifiers, this motor converts electrical control signals into regulated mechanical rotation for positioning or velocity tasks in automated machinery. Its mechanical interface matches the MAC family footprint, allowing quick replacement or scaling within existing Rexroth drive systems and making it a direct actuator for conveyor sections, tooling axes, or material-handling stations.
A centering diameter of 110 mm positions the stator precisely against the mating flange and maintains concentricity between shaft and load. Heat is removed by natural convection, so no external blower or liquid circuit is required; cabinet layout must therefore permit unobstructed air flow around the housing. Speed information is provided through integrated tachofeedback, enabling analog controllers to close the velocity loop without an additional encoder. Under nominal excitation the rotor reaches 1500 min⁻¹, matching drive tables for smooth low-frequency operation. Power and resolver conductors exit through a connector on side A, simplifying harness routing in line-mounted installations.
Mechanical holding capacity is ensured by a factory-installed blocking brake, allowing the axis to stay fixed whenever the drive is disabled. The wound stator follows the ZD winding profile, so torque-speed curves align with medium inertia loads demanded by common machine tools. For velocity feedback the motor’s tachogenerator delivers 3 V/1000 min⁻¹, and its standard quality signal is suitable for typical ±10 V analog regulators without extra filtering. These electrical characteristics finalize the interface, letting designers specify cable lengths, amplifier gain, and braking resistors within the MAC family envelope.
Technical Specifications
Blocking Brake
Standard
Centering Diameter
110 mm
Continuous torque at standstill
3.7 Nm
Cooling Type
Natural convection
Feedback Configuration
With tachofeedback
Mass
12.5 kg
Nominal RPM
1500min-1
Nominal Speed
2000 min-1
Peak Pulse Current
53 A
Permissible Ambient Temperature
0°C to + 45 °C
Power connection
Side A
Power Connection Location
Connector to side A
Product Type
Motor for analogue drives
Rotor moment of inertia
20 x 10-4 kgm2
Tacho Quality
Standard
Tacho voltage
3V/1000min-1
Torque constant at 20 °C
0.51 Nm/A
Winding Code
ZD
Windings resistance at 20 °C
1.85 Ohm
Shipping & Payment Options
Warranty
Repair
We offer a repair service for the MAC090A-0-ZD-2-C/110-A-1. 
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