R911339615 (MSK071C-0300-FN-M2-UG2-RNNN)

MSK IndraDyn S Synchronous Motors

MSK071C-0300-FN-M2-UG2-RNNN Series Image

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The R911339615 (MSK071C-0300-FN-M2-UG2-RNNN) is a Bosch Rexroth IndraDyn S synchronous servomotor designed for precise industrial motion control. Its optical multi-turn absolute encoder with EnDat 2.1 interface provides 2048 signal periods and position tracking for 4,096 mechanical revolutions. The motor includes a plain shaft per DIN 3760 - design A and an electrically-released 30 Nm holding brake. Electrical connections use rotatable 240° connectors for both power and encoder. The unit features liquid cooling, conforms to IP65 for dust and water resistance, and operates within a 40°C ambient temperature and 95% relative humidity. Key performance parameters include a motor size of 071, motor length C, winding code 0300, continuous current at standstill of 8.5 A, continuous torque at standstill of 14.0 Nm, maximum current of 32.9 A, maximum torque of 44.0 Nm, winding inductivity of 10,900 mH, all within a compact and concentric design requiring FN cooling.

Technical Specifications

Product
MSK Synchronous Motors

Application
Rotary main and servo drive motors

Measuring Method
Optical

Holding Brake
Electrically-released

Holding Torque
40Nm

Output Shaft
Plain, with sealing ring

Shaft Sealing Ring Design
DIN 3760 - design A

Protection Rating
IP 65 according to DIN EN 60529

Maximum Ambient Temperature
40° C

Maximum Relative Humidity
95%.

Frequently Asked Questions

How does the EnDat 2.1 multiturn (2048 periods) encoder in MSK071C-0300-FN-M2-UG2-RNNN improve positioning accuracy and avoid homing?

The optical EnDat 2.1 multiturn encoder supplies absolute position over 4,096 mechanical revolutions with 2,048 signal periods for fine interpolation, so axes retain position across power cycles. It eliminates homing routines, shortens startup and improves closed-loop resolution on robotics, packaging and CNC axes.

How does the 240° rotatable power/encoder connector on MSK071C-0300-FN-M2-UG2-RNNN aid machine layout and serviceability?

The “U” electrical connection option provides a 240° rotatable plug to let installers aim cable exits away from obstructions and maintain bend-radius in dense panels. Its flexibility eases routing to reduce strain on feedback leads during maintenance and supports rapid module swaps in multi-axis machines.

What is the function of the electrically-released 30 Nm holding brake in MSK071C-0300-FN-M2-UG2-RNNN on vertical or safety-critical axes?

The integrated holding brake is spring-applied and electrically released for delivering about 30 Nm static torque to secure the load when power is removed or during E-stop events. It prevents back-driving on vertical axes that stabilizes positioning during servo disable and simplifies compliance with safe-torque-off strategies.

What does the plain shaft with increased concentricity on MSK071C-0300-FN-M2-UG2-RNNN imply for coupling selection and runout?

Its plain shaft with increased concentricity minimizes total indicated runout at the coupling to aid smooth rotation and lower vibration in high-repeatability axes.

How does the multiturn absolute range (up to 4,096 mechanical revolutions) interact with machine kinematics on MSK071C-0300-FN-M2-UG2-RNNN?

The absolute tracking across 4,096 revolutions accommodates reducers and long-travel axes without index switches for preserving position through power interruptions. It when combined with safe-torque-off at the drive, the axis can re-enable to a known position quickly for improving OEE on tightly scheduled packaging or robotic workcells.

Common Misspellings

Internal Product Review

The Bosch Rexroth Indramat MSK071C-0300-FN-M2-UG2-RNNN synchronous servomotor is equipped with an EnDat 2.1 multiturn encoder of 2048 periods and it possess a 30 Nm brake system. Its continuous torque is specified as 14 Nm at 8.5 A and its peak torque is 44 Nm. This motor connects through a 240° rotatable connector for simplifies integration in robotics, packaging and CNC applications.

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Cary, NC 27513, USA

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Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.