MAC093C-2-KS-4-C/110-A-1/DI520LB/S001

MAC AC Servo Motors

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The MAC093C-2-KS-4-C/110-A-1/DI520LB/S001 is an AC servo motor produced by Bosch Rexroth Indramat within the MAC AC Servo Motors series. Classified by the manufacturer as a motor for analogue drives, it supplies regulated torque and speed to automation axes that rely on analog velocity or current commands. In factory environments it is selected for position control on machining centers, transfer stations, and handling equipment where repeatable 2,000 rpm nominal speed is required.

At standstill the rotor can deliver 19.5 Nm of continuous torque while drawing a sustained current of 22 A; these two ratings define the thermal operating point when the stator windings are continuously energized. The electromagnetic conversion efficiency is indicated by a torque constant of 0.910 Nm/A, so each ampere from the drive produces nearly one newton-meter of shaft torque. Magnetic energy storage is governed by a winding inductance of 7.0 mH, a value that influences current ripple and the bandwidth of the current loop. Copper losses during operation are tied to a winding resistance of 0.433 Ohm measured at 20 °C. Axial surface cooling, aided by an external 115 V AC blower, removes the heat generated at these electrical load points and keeps the 50 minute thermal time constant within specification.

For short acceleration bursts the motor can accept a peak phase current of 110 A without demagnetizing the rotor. Its IP rating of IP65 seals the housing against dust ingress and water jets, allowing installation up to 1,000 m elevation without additional environmental measures. A rotor inertia of 0.0042 kg·m² balances dynamic response with load stability, while the total motor mass of 22.0 kg must be supported by the machine frame. An integral blocking brake holds position when power is removed, and tachofeedback or an incremental encoder with shock-damped mounting provides velocity and position data to the drive controller.

Technical Specifications

Blocking Brake
Standard

Blower Voltage
AC 115 V

Centering Diameter
110 mm

Continuous Current At Standstill
22 A

Continuous Torque At Standstill
19.5 Nm

Cooling Type
Axial Surface Cooling

Feedback Configuration
W/ tachofeedback incremental or absolute encoder

Mass
22.0 kg

Max Installation Elevation
1000 m

Motor Length
C

Motor Size
093

Nominal RPM
2000min-1

Nominal Speed
2000 rpm

Peak Current
110 A

Power Connection Location
Connector to side A

Product Type
Motor for analogue drives

Protection Category
IP65

Rotor Inertia
0.0042 kg·m²

Tacho Quality
Standard

Tacho voltage
3V/1000min-1

Thermal Time Constant
50 min

Torque Constant (20°c)
0.910 Nm/A

Type of position feedback
Incremental encoder with shock-damped mounting

Winding Code
KS

Winding Inductance
7.0 mH

Winding Resistance (20°c)
0.433 Ohm

Frequently Asked Questions

Internal Product Review

The MAC093C-2-KS-4-C/110-A-1/DI520LB/S001 is an AC servo motor from Bosch Rexroth Indramat's MAC series, featuring a nominal speed of 2000 rpm and continuous torque at standstill of 19.5 Nm. With axial surface cooling and a standard blocking brake, this unit is designed for reliable operation in demanding analogue drive applications. Its IP65 protection rating ensures durability in industrial environments.