R911382840 (MSK071C-0300-NN-S1-UG0-NSNN)

MSK IndraDyn S Synchronous Motors

MSK071C-0300-NN-S1-UG0-NSNN Series Image

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The Bosch Rexroth synchronous servomotor R911382840 (MSK071C-0300-NN-S1-UG0-NSNN) is engineered for high-torque applications and features a moment of inertia of 0.00173 kg·m². It has an IP65-rated casing for protection against dust and low-pressure water jets, and an internal sensor monitors motor temperature. The motor provides 18 Nm standstill torque and 11 A continuous current at rest, with a maximum torque of 44 Nm and peak current of 32.9 A. Winding inductance is 10,900 mH. Its rotatable 240° encoder connector supports Hiperface optical singleturn technology with 128 signal periods. The shaft is a plain type with a sealing ring, and cooling is achieved by natural convection. Dimensions correspond to size 071, length C, with a weight of 13.9 kg. The design supports both standard and explosion protection configurations. No holding brake is present.

Technical Specifications

Type
Synchronous Motor

Suited For
Applications requiring high torque

Moment of Inertia
0.00173 kgm2

Outer Casing
Designed to meet IP 65 protection requirements

Insulation Rating
155

Temperature Monitoring System
Internal sensor

Output Shaft
Plain output shaft with a sealing ring

At Standstill Torque
18 Nm

Continuous Current
11 A

Torque at 100 K
14 Nm

Continuous Current Rating at 100 K
8.5 A

Thermal Time Constant
15 minutes

Heat Transmission
Provides natural convective heat transmission

Weight
13.9 kg

Winding Inductance
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

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.

1620 Old Apex Road
Cary, NC 27513, USA

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

Fax: 1-919-867-6204

[email protected]

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

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.