MSK071C-0300-FN-M1-UG2-NNNN

MSK IndraDyn S Synchronous Motors

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The Bosch Rexroth Indramat MSK071C-0300-FN-M1-UG2-NNNN motor from the MSK IndraDyn S Synchronous Motors series is a robust IndraDyn S Synchronous Servomotor designed for demanding applications. Featuring liquid cooling and a plain shaft, it delivers a continuous torque at standstill of 14.0 Nm at 100 K with a continuous current of 8.5 A, while providing a maximum torque of 44.0 Nm at a peak current of 32.9 A. The motor uses an optical encoder with a multiturn absolute design and an Hiperface interface, offering 128 signal periods resolution and a rotatable, 240° encoder connector. Cooled via FN constraint and built in standard design with a C length and size 071, it also includes a 30 Nm electrically released holding brake for secure positioning. With winding inductivity of 10,900 mH and a rated speed code of 0300, this servo motor ensures precise, reliable control in high-performance systems.

Technical Specifications

Cooling
Liquid cooling

Encoder Connector
Rotatable, 240°

Encoder Technology
Optical

Encoder Turn Type
Multiturn Absolute

Encoder Interface
Hiperface

Encoder Resolution
128 signal periods

Motor Length
C

Motor Size
071

Holding Brake
With holding brake, electrically-released

Holding Brake Torque
30 Nm

Constraint
Requires Cooling FN

Design
Standard

Product Type
IndraDyn S Synchronous Servomotor

Shaft Type
Plain shaft

Rated Speed Code
0300

Continuous Current at Standstill 100 K
8.5 A

Continuous Torque at Standstill 100 K
14.0 Nm

Maximum Current
32.9 A

Maximum Torque
44.0 Nm

Winding Inductivity
10,900 mH

Frequently Asked Questions

Why is a 30 Nm electrically released holding brake used, and what are its limits on MSK071C-0300-FN-M1-UG2-NNNN?

It secures axes against drift at standstill or during power-off to resist back-driving loads up to the brake’s static torque. It’s not designed as a dynamic/service brake for repetitive energy absorption during motion.

How does the FN liquid-cooling option on MSK071C-0300-FN-M1-UG2-NNNN influence duty cycles and integration?

It enables sustained thermal headroom for repetitive acceleration/braking or prolonged stall torque if the external circuit maintains rated flow and supply pressure.

What does the “M1” encoder in MSK071C-0300-FN-M1-UG2-NNNN provide compared with single-turn devices?

The M1 is an optical multiturn absolute Hiperface encoder with 128 signal periods for delivering absolute position across revolutions and fine interpolation for precise commutation. It simplifies homing and improves low-speed smoothness and stiffness when paired with IndraDrive controllers.

What installation advantages come from the “U” 240° rotatable connector on MSK071C-0300-FN-M1-UG2-NNNN?

The rotatable plug lets you clock the connector for optimal cable exit for improving strain relief in tight cabinets and moving axes. It reduces bend-radius stress and simplifies EMC-conscious routing in multi-axis builds.

How does Hiperface communication on MSK071C-0300-FN-M1-UG2-NNNN assist commissioning and diagnostics?

The Hiperface combines analog sine/cosine tracks with digital RS-485 data for absolute position and encoder diagnostics. It supports quick startup, error reporting and reliable interpolation in high-resolution motion profiles.

Common Misspellings

Internal Product Review

Bosch Rexroth Indramat manufactures MSK071C-0300-FN-M1-UG2-NNNN as a servo motor that uses liquid cooling for maintaining operatable thermal range. It has an optical encoder for providing precise speed and motion control. This motor comes with an integrated 30 Nm holding brake and delivers a rated torque of 14.0 Nm. It fits in machine-tool, packaging and printing roles due to its 240° rotatable connector that eases installation and plain shaft design for simplifying coupling.