MSK071C-0302-NN-S1-UG0-NNNN
MSK IndraDyn S Synchronous Motors
The MSK071C-0302-NN-S1-UG0-NNNN servo motor from Bosch Rexroth Indramat is part of the robust MSK IndraDyn S Synchronous Motors series, featuring a continuous torque at standstill of 14.0 Nm and a maximum torque of 44.0 Nm. With a continuous current at standstill of 8.5 A and a maximum current of 32.9 A, this motor delivers precise motion control in demanding automation systems. Its primary function is to provide high-dynamic positioning and speed regulation in industrial servo applications, making it ideal for assembly lines, robotics, and packaging machinery.
In-depth technical specifications underscore the motor's capabilities. The winding inductivity of 10,900 mH supports stable current flow and minimizes torque ripple. The motor's design is classified as Standard with a plain shaft output, ensuring straightforward mechanical integration. Cooling is achieved through natural convection, eliminating the need for external cooling circuits. The integrated optical encoder employs the Hiperface interface with 128 signal periods and singleturn turn type, all connected via a rotatable 240° encoder connector. These features guarantee high-resolution feedback for accurate position tracking and smooth velocity control.
Additional attributes enhance compatibility and operational reliability. The Standard design accommodates common mounting configurations, and the plain shaft simplifies coupling to various loads. Natural convection cooling ensures silent, maintenance-free operation, while the lack of a holding brake reduces complexity in systems not requiring mechanical brakes. As a fully electronic synchronous servomotor in the IndraDyn S family, it supports seamless integration with Rexroth drives and controllers. In industrial applications, this motor delivers exceptional efficiency, precise control, and long-term stability, resulting in reduced downtime and increased productivity.
Technical Specifications
Cooling
Natural convection
Encoder Connector
Rotatable, 240°
Encoder Interface
Hiperface
Encoder Resolution
128 signal periods
Encoder Technology
Optical
Encoder Turn Type
Singleturn
Motor Length
C
Motor Size
071
Holding Brake
Without holding brake
Design
Standard
Product Type
IndraDyn S Synchronous Servomotor
Shaft Type
Plain shaft
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 the 10,900 mH winding inductivity of the MSK071C-0302-NN-S1-UG0-NNNN influence current control and torque ripple in closed-loop operation?
The higher inductivity filters phase current to reduce ripple and smoothes electromagnetic torque, so the controller can run tighter velocity and position loops. It also mitigates switching harmonics for improving thermal behavior at low speed and enhancing standstill stability.
What does an optical singleturn Hiperface encoder with 128 signal periods contribute to the MSK071C-0302-NN-S1-UG0-NNNN’s positioning accuracy and servo stiffness?
Its each sine/cosine period multiplies via interpolation to very fine angular resolution for yielding precise commutation and crisp servo response. Its Hiperface protocol carries analog tracks plus digital data for calibration and diagnostics to improve commissioning consistency and fault detection capabilities.
Why is natural convection cooling appropriate for the MSK071C-0302-NN-S1-UG0-NNNN, and when would you reconsider thermal strategy?
The convection eliminates fans and coolant circuits to enable quiet, maintenance-free operation at the specified continuous torque. If duty cycle elevates RMS current or ambient temperature, consider design derating, heat sinking or selecting a forced-ventilated variant to maintain winding temperature margins.
How does the plain shaft design on MSK071C-0302-NN-S1-UG0-NNNN affect mechanical integration and torsional compliance in couplings?
Its plain shaft simplifies hub-and-key or clamp-style coupling choices and keeps rotor runout predictable. Its low-backlash, torsionally stiff couplings maintains bandwidth. Adding compliance or elastomer elements can attenuate resonance when the load has flexible transmissions.
What is the purpose of the rotatable 240° encoder connector on MSK071C-0302-NN-S1-UG0-NNNN during installation?
The swivel connector lets installers orient the plug to clear cable trays, doors or moving axes without stressing harnesses. Its improved strain relief and bend-radius management reduce intermittent encoder faults and maintain EMC performance in dynamic cable carriers.
Common Misspellings
MSK071C0302NNS1UG0NNNN
MSK071C 0302 NN S1 UG0 NNNN
MSK-071C-0302-NN-S1-UG0-NNNN
MSK71C-0302-NN-S1-UG0-NNNN
Internal Product Review
The Bosch Rexroth Indramat’s MSK071C-0302-NN-S1-UG0-NNNN servomotor targets accurate positioning and speed regulation through its optical singleturn Hiperface of 128 periods. It provides 14.0 Nm standstill torque, 44.0 Nm peak and utilizes a normal current of 8.5 A as well as 32.9 A of full load currents. This motor includes a plain shaft and lacks any holding brake assembly. It is widely applicable in machine tools, printing/packaging, woodworking and automotive assembly.
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