MSK071C-0300-NN-M1-UP1-NNNN
MSK IndraDyn S Synchronous Motors
The MSK071C-0300-NN-M1-UP1-NNNN, Bosch Rexroth Indramat, and part of the MSK IndraDyn S Synchronous Motors series, offers high-precision motion control for demanding automation tasks. This IndraDyn S Synchronous Servomotor is designed in a compact Motor Size 071 housing with a Motor Length C footprint and a Rated Speed Code 0300 for seamless integration with standard drive amplifiers. Equipped with an integrated Multiturn Absolute encoder and a robust shaft with keyway, the unit delivers reliable position feedback. A built-in holding brake, electrically-released ensures position retention during power loss.
Featuring Natural convection cooling, the motor maintains optimal thermal performance without external fans or additional hardware. The Hiperface encoder interface supports 128 signal periods resolution via an Optical multiturn design and a rotatable, 240° connector that accommodates diverse mounting orientations. Electrical parameters include a Continuous Current at Standstill 100 K of 8.5 A, yielding a Continuous Torque at Standstill 100 K of 14.0 Nm, and a Maximum Current of 32.9 A for rapid acceleration and high-speed synchronization. Peak mechanical output reaches a Maximum Torque of 44.0 Nm, while a Winding Inductivity of 10,900 mH ensures smooth current flow, low ripple, and predictable torque response under dynamic loads.
Its standard shaft with keyway and robust electrically-released holding brake torque of 23 Nm simplify integration into conveyors, packaging, and assembly lines, reducing retrofit complexity. The MSK071C’s modular design and precise feedback scheme enhance system reliability, reduce commissioning time, and minimize maintenance cycles. With no reliance on auxiliary cooling, it delivers quiet, energy-efficient performance ideal for cleanroom, laboratory automation, and precision positioning applications.
Technical Specifications
Cooling
Natural convection
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
23 Nm
Design
Standard
Product Type
IndraDyn S Synchronous Servomotor
Shaft Type
Shaft with keyway
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 is the 23 Nm electrically-released holding brake on MSK071C-0300-NN-M1-UP1-NNNN intended to be used?
It is designed to secure axes at standstill (e.g., vertical loads) and for safe retention during power loss, not as a service brake to stop moving masses. Its dynamic deceleration requires sizing beyond static torque.
Does the 240° rotatable plug on MSK071C-0300-NN-M1-UP1-NNNN simplify cabinet and cable routing?
Yes, being able to rotate the power/encoder plug over 240° allows exit orientation to be matched to machine geometry for reducing bend stress and improving sealing. It also eases service in dense enclosures and multi-motor arrays.
What does the keyway per DIN 6885-1 (“P” option) on MSK071C-0300-NN-M1-UP1-NNNN mean for coupling selection and sealing?
The keyed shaft conforms to DIN 6885-1 dimensions for standard hubs, making torsionally rigid or elastomer couplings straightforward. Its paired shaft-sealing ring improves ingress protection around the journal that is useful for dusty packaging and machining cells.
How does a winding inductivity of 10,900 mH influence drive tuning and current loop dynamics?
Its higher inductivity smooths current ripple and linearizes torque production for aiding low-ripple interpolation with the optical encoder. Its trade-off is a slower current rise, so aggressive bandwidths may require careful voltage headroom and well-tuned feed-forward terms.
How should the 8.5 A/14.0 Nm (100 K, standstill) ratings guide servo sizing for this model?
The continuous standstill ratings validates thermal equilibrium at low duty cycles or holding torque requirements, while 14 Nm at 8.5 A is thermal anchor. Its transient moves can leverage 32.9 A maximum current and 44 Nm peak torque if RMS limits remain compliant.
Common Misspellings
MSK071C0300NNM1UP1NNNN
MSK071C 0300 NN M1 UP1 NNNN
MSK-071C-0300-NN-M1-UP1-NNNN
MSK71C-0300-NN-M1-UP1-NNNN
Internal Product Review
The servo motor MSK071C-0300-NN-M1-UP1-NNNN from Indramat integrates a multiturn-absolute Hiperface encoder that offers 128 periods for precise speed and motion control. It has a 240° rotatable plug for easy connectivity and its 23 Nm electrically-released brake ensures safe operations. This unit is designed in a fan-less size-071 structure that delivers 14 Nm by utilizing 8.5 A at standstill and 44 Nm peak torque to fit into packaging, printing, assembly/handling and machine-tool axes.
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