MSK071C-0450-NN-M1-UP1-NSNN

MSK IndraDyn S Synchronous Motors

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The MSK071C-0450-NN-M1-UP1-NSNN is an IndraDyn S Synchronous Servomotor manufactured by Bosch Rexroth Indramat in the MSK IndraDyn S Synchronous Motors series. It offers natural convection cooling, an optical multiturn absolute encoder with Hiperface interface and 128 signal periods resolution, 14.0 Nm continuous torque at standstill, 44.0 Nm maximum torque, and a 23 Nm electrically released holding brake.

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 and Explosion Protection

Product Type
IndraDyn S Synchronous Servomotor

Shaft Type
Shaft with keyway

Rated Speed Code
0450

Continuous Current at Standstill 100 K
10.4 A

Continuous Torque at Standstill 100 K
14.0 Nm

Maximum Current
40.1 A

Maximum Torque
44.0 Nm

Winding Inductivity
6,700 mH

Frequently Asked Questions

What commissioning advantages come from the optical multiturn absolute encoder on MSK071C-0450-NN-M1-UP1-NSNN?

The Hiperface multiturn feedback provides absolute position over multiple revolutions with 128 signal periods for eliminating homing sequences after power cycles and speeding start-ups. It also improves synchronization with IndraDrive controllers in cyclic real-time motion profiles.

How does natural-convection cooling influence sizing and enclosure choices for MSK071C-0450-NN-M1-UP1-NSNN?

Its passive heat rejection allows cabinet airflow and mounting clearances is important, so derating must consider ambient temperature and duty cycle. It simplifies maintenance and enables sealed enclosures where fans are undesirable or contamination-prone.

Why is the 23 Nm electrically-released holding brake useful, and how should it be applied on MSK071C-0450-NN-M1-UP1-NSNN?

It secures vertical axes and prevents drift during emergency stops or power loss, while current removes the brake during operation. Its static loads plus safety factors remain below 23 Nm at the motor shaft.

How does the 6,700 mH winding inductivity of MSK071C-0450-NN-M1-UP1-NSNN affect current control bandwidth?

The higher inductivity smooths ripple and eases PWM filtering but increases electrical time constant for requiring tuned current loop gains to maintain fast torque response. Its controller autotuning should be applied to balance stability and dynamic stiffness.

How does the keyed shaft of MSK071C-0450-NN-M1-UP1-NSNN influence coupling and overload protection?

The keyway provides positive torque transmission and simplifies hub alignment; select backlash-rated couplings to protect encoder bearings. Its torque-limiting couplers or clutches should be used to shield mechanics during transients near the 44 Nm peak.

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Internal Product Review

The Rexroth Indramat’s MSK071C-0450-NN-M1-UP1-NSNN motor includes a 23 Nm electrically-released designed of brake for safe operations. It uses passive cooling by dissipating heat through its surface and relies on a 128 signal periods feedback encoder for monitoring and control. This motor comes with a rotatable 240° connector for easy cable routing and it yields 14.0 Nm torque in normal load conditions at standstill. Its keyed shaft makes integration easy in packaging, machine tools and robotic systems.