MAC090B-0-PD-1-B/110-A-1/I625/S001
MAC AC Servo Motors
Rated 4.1 stars (13 total reviews)
The MAC090B-0-PD-1-B/110-A-1/I625/S001 belongs to the MAC AC Servo Motors series produced by Bosch Rexroth Indramat. It is a brushless permanent-magnet motor intended for analogue drive systems where closed-loop speed and torque regulation are needed to position machine axes and transfer loads in industrial automation lines.
This motor supplies a continuous stall current of 11.9 A that pairs with a continuous stall torque of 7.2 Nm to maintain static loads without overheating. During sustained motion the rotor reaches a nominal speed of 1500 min⁻¹, and each ampere delivered to the windings generates torque at a rate of 0.67 Nm/A. For short accelerations or shock loads the drive may command up to 86 A of peak current. Natural convection removes heat from the stator, so no external blower is required. Incremental encoder feedback provides pulse-based position data to the controller, while a tacho generator outputs 3 V per 1000 min⁻¹ for analog speed loops. The PD winding set presents 5.1 mH of inductance and 0.97 Ω of resistance, characteristics the amplifier must match for stable current regulation. Power enters through a connector on side A to simplify cable routing inside the cabinet.
The mechanical profile centers on a rotor inertia of 0.0036 kg·m², suited to mid-range load inertia ratios. A centering diameter of 110 mm aligns the flange to gearboxes or mounting plates with minimal run-out. Thermal equilibrium is modeled with a time constant of 60 min, indicating slow temperature rise during intermittent duty. The frame mass of 18 kg adds structural damping inside multi-axis gantries. A blocking brake is supplied as standard, and the motor’s designation as a unit for analogue drives ensures compatibility with legacy velocity controllers that rely on tacho feedback rather than digital serial communication.
Technical Specifications
Blocking Brake
Standard
Centering Diameter
110 mm
Continuous Stall Current
11.9 A
Continuous Stall Torque
7.2 Nm
Cooling Type
Natural convection
Feedback Configuration
Incremental Encoder Feedback
Max Peak Current
86 A
Motor Mass
18 kg
Nominal RPM
1500min-1
Power Connection Location
Connector to side A
Product Type
Motor for analogue drives
Rotor Inertia
0.0036 kg·m²
Tacho voltage
3V/1000min-1
Thermal Time Constant
60 min
Torque Constant (20 °c)
0.67 Nm/A
Winding Code
PD
Winding Inductance
5.1 mH
Winding Resistance (20 °c)
0.97 Ohm
Frequently Asked Questions
Internal Product Review
The MAC090B-0-PD-1-B/110-A-1/I625/S001 is an AC servo motor from Bosch Rexroth Indramat, designed for analog drives with a standard blocking brake and natural convection cooling. With a continuous stall torque of 7.2 Nm and a nominal speed of 1500 RPM, this unit delivers consistent performance in demanding automation environments. The incremental encoder feedback and power connection to side A make installation straightforward for a wide range of motion control systems.
Fax: 1-919-867-6204
Shipping & Payment Options
Warranty
Indramat USA 1 Year Warranty
Repair
We offer a repair service for the MAC090B-0-PD-1-B/110-A-1/I625/S001. 
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