MSK071C-0300-NN-S1-UG0-NSNN
MSK IndraDyn S Synchronous Motors
The MSK071C-0300-NN-S1-UG0-NSNN from Bosch Rexroth Indramat is part of the MSK IndraDyn S Synchronous Motors series. This IndraDyn S Synchronous Servomotor uses natural convection cooling and an optical Hiperface encoder with 128 signal periods and a 240° singleturn rotatable connector. It provides 14.0 Nm continuous torque at 8.5 A and 44.0 Nm peak at 32.9 A, features 10,900 mH inductivity and standard and explosion protection design.
Technical Specifications
Cooling
Natural convection
Encoder Connector
Rotatable, 240°
Encoder Technology
Optical
Encoder Turn Type
Singleturn
Encoder Interface
Hiperface
Encoder Resolution
128 signal periods
Motor Length
C
Motor Size
071
Holding Brake
Without holding brake
Design
Standard and Explosion Protection
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
What thermal behavior should I expect from natural-convection cooling, and when is it appropriate?
Its heat dissipation relies on surface area and ambient airflow for making it suitable for moderate continuous loads and intermittent duty cycles. For higher thermal loads, fans or liquid-cooling MSK variants are typical alternatives.
How does the single-turn Hiperface encoder (128 signal periods) on MSK071C-0300-NN-S1-UG0-NSNN influence commissioning accuracy and servo loop stability?
It provides absolute position within one mechanical revolution and clean sine/cosine feedback for precise commutation. Its 128-period scale supports fine interpolation in the drive for aiding smooth torque production and tuning repeatability.
Why is the 10,900 mH winding inductivity on MSK071C-0300-NN-S1-UG0-NSNN relevant for drive sizing and current-loop design?
Its higher inductance attenuates current ripple and can broaden stable current-loop settings with standard PWM frequencies. It also interacts with DC-link voltage and back-EMF to shape current rise time during fast torque steps.
How does the 240° rotatable encoder connector help during installation on tight machines?
The connector simplifies cable exit orientation for helping avoid sharp bends and reducing strain on feedback cables. It also improves serviceability when the motor is mounted near guards or machine frames.
How should I interpret the continuous 14.0 Nm @ 8.5 A and peak 44.0 Nm @ 32.9 A ratings on MSK071C-0300-NN-S1-UG0-NSNN?
The continuous torque is the thermally sustainable value at the stated temperature rise, while peak torque is limited by current and timing. Its duty cycle, ambient and cooling needs to be varified to ensure the application remains within thermal limits.
Common Misspellings
MSK071C0300NNS1UG0NSNN
MSK071C 0300 NN S1 UG0 NSNN
MSK-071C-0300-NN-S1-UG0-NSNN
MSK71C-0300-NN-S1-UG0-NSNN
Internal Product Review
The Bosch Rexroth Indramat’s IndraDyn S servomotor MSK071C-0300-NN-S1-UG0-NSNN delivers 14 Nm of torque, while drawing 8.5 A current and supports up to 44 Nm at 32.9 A. Its optical single-turn encoder connects through an adjustable 240° connector eases alignment. This unit dissipates heat through natural convection and its inductive value is 10900 mH to suit operations in machine-tool and robotics duties.
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