MSK071C-0300-NN-S2-UG1-RNNN

MSK IndraDyn S Synchronous Motors

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The MSK071C-0300-NN-S2-UG1-RNNN from Bosch Rexroth Indramat features natural convection cooling and optical encoder technology. Part of the MSK IndraDyn S Synchronous Motors, it has motor size 071, length C, and an electrically released holding brake. It offers a singleturn encoder with EnDat2.1 interface and 2048 resolution.

It delivers continuous torque of 14.0 Nm and maximum torque of 44.0 Nm. The maximum current reaches 32.9 A. The design ensures increased concentricity for reliable performance.

Technical Specifications

Cooling
Natural convection

Encoder Connector
Rotatable, 240°

Encoder Technology
Optical

Encoder Turn Type
Singleturn

Encoder Interface
EnDat2.1

Encoder Resolution
2048 signal periods

Motor Length
C

Motor Size
071

Holding Brake
With holding brake, electrically-released

Holding Brake Torque
23 Nm

Design
Increased concentricity

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

How does natural-convection cooling influence deploying MSK071C-0300-NN-S2-UG1-RNNN inside cabinets or tight machine bays?

Its self-cooling dissipates heat to mainatain ambient cindition without fans or liquid circuits, so clearance and airflow are critical. Its 14 Nm continuous rating assumes the 100 K thermal model and adequate ventilation around the motor body.

Why use an optical single-turn EnDat 2.1 encoder with 2048 signal periods on this IndraDyn S motor?

Its optical scanning and the digital EnDat 2.1 interface delivers precise position and velocity feedback with low interpolation error and straightforward commissioning. Its absolute position resets each revolution, so homing or external reference is required for multi-turn applications.

What is the practical benefit of the 240° rotatable encoder connector on MSK071C-0300-NN-S2-UG1-RNNN?

The connector reduces bending stress to simplify routing in crowded machines and supports serviceability. It also minimizes connector collision risks when motors are mounted close to linear guides or guarding.

How does the increased concentricity design translate into application results for precision axes?

Its improved rotor and shaft concentricity reduces mechanical runout and torque ripple for enhancing contour accuracy and registration. It is used in processes such as web printing, pick-and-place and fine indexing.

How does the 23 Nm electrically released holding brake on MSK071C-0300-NN-S2-UG1-RNNN interact with safety functions?

The spring-applied brake holds the axis when de-energized and is intended for holding, not dynamic stopping. Its drive safety (e.g., Safe Torque Off) and mechanical safeguards on vertical axes addresses risk during faults or e-stops.

Common Misspellings

Internal Product Review

Bosch Rexroth Indramat designs the AC motor MSK071C-0300-NN-S2-UG1-RNNN with a passive natural-convection cooling and it includes an optical EnDat 2.1 single-turn encoder of 2048 periods. It possesses an electrically released brake and delivers 14 Nm continuous. This motor comes with an increased concentricity and a 240° rotatable connector for easy integration in assembly handling and electronic production systems.