R911335569 (MSK071C-0300-NN-M2-UG1-RNNN)

Name: R911335569 (MSK071C-0300-NN-M2-UG1-RNNN)
Brand: Indramat Motors
SKU: MSK071C-0300-NN-M2-UG1-RNNN
Price: 307.00 USD
Availability: InStock

MSK IndraDyn S Synchronous Motors

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The MPN R911335569 (MSK071C-0300-NN-M2-UG1-RNNN) is an IndraDyn S Synchronous Servomotor configured with a motor size of 071 and length C. It features a plain shaft with a sealing ring and is equipped with an optically-based multiturn absolute EnDat 2.1 encoder providing 2048 signal periods. The motor includes an electrically-released holding brake rated at 23 Nm and is designed with increased concentricity. With an IP65 protection rating, the housing, connectors, and shaft offer resistance to dust and low-pressure water jets. The unit is specified with a winding code 0300, a continuous current at standstill of 8.5 A at 100 K, continuous torque at standstill of 14.0 Nm, maximum current of 32.9 A, maximum torque of 44.0 Nm, and winding inductivity of 10,900 mH. Cooling is standard via natural convection, with surface and liquid cooling options supported for applications requiring greater thermal management. The encoder connector is rotatable 240° to facilitate system integration.

Technical Specifications

Motor Type
Synchronous Motor

Optional Features
Multiple Encoders,Holding Brakes

Housing Design
Increased Concentricity and Run Out

Optional Holding Brake Rating
23 Nm Holding Torque

Release Signal
24 Volts DC

Encoder Type
Optical Multiturn Absolute EnDat 2.1

Encoder Signal Periods
2048

Shaft Design
Plain with a Sealing Ring

Protection Rating
IP65

Cooling Method
Natural Convection or Surface Cooling

Implicit Torque Output
Depends on Cooling Method

Motor Liquid Cooling
Available

Frequently Asked Questions

How does the optical EnDat 2.1 multiturn encoder (2048 periods) on MSK071C-0300-NN-M2-UG1-RNNN help servo loop accuracy and startup behavior?

It provides absolute multi-revolution position referencing for removing homing cycles and improving first-move repeatability. Its EnDat 2.1 and incremental 1 Vpp signals interpolates 2048 signal periods for fine commutation and low speed ripple.

What does natural-convection cooling imply for continuous torque and allowable ambient on MSK071C-0300 variants?

The convection housing dissipates heat without fans that allows a continuous torque 14.0 Nm at 8.5 A. Its typical ambient guidance for comparable MSK071C models is 0–40 °C at ≤1000 m elevation.

Why specify the “increased concentricity” design on MSK071C-0300-NN-M2-UG1-RNNN?

Its higher mechanical concentricity reduces runout-induced torque ripple and improves velocity uniformity to aid print registration, metrology moves and surface finish on precision axes. Its housing is explicitly offered with a high-concentricity option in the MSK071C family.

How is the electrically-released 23 Nm holding brake on MSK071C-0300-NN-M2-UG1-RNNN applied in vertical-axis safety?

The brake holds the load when the drive is disabled for supporting gravity-countering axes during E-stop or power loss. Its sizing uses 23 Nm static torque vs. reflected load torque with safety margin per the machine’s risk assessment.

What is the advantage of the 240° rotatable encoder connector specified on MSK071 size-071 motors?

The swivel connector simplifies cable exit orientation to minimize bend stress and easing routing in tight cabinets or moving carriages. It also streamlines maintenance by allowing access without re-terminating cables.

Common Misspellings

MSK071C0300NNM2UG1RNNN

MSK071C 0300 NN M2 UG1 RNNN

MSK-071C-0300-NN-M2-UG1-RNNN

MSK71C-0300-NN-M2-UG1-RNNN

Internal Product Review

The Rexroth Indramat’s IndraDyn S MSK071C-0300-NN-M2-UG1-RNNN motor is presented with natural-convection cooling and an optical EnDat 2.1 multiturn encoder that supports 2048 signal periods. It delivers 14.0 Nm at 8.5 A (standstill) and 44.0 Nm peak torque. This motor has an electrically-released 23 Nm brake system that makes it well-suited for packaging, printing and assembly/handling axes.