MSK101C-0300-NN-M2-BG2-RNNN

MSK IndraDyn S Synchronous Motors

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The MSK101C-0300-NN-M2-BG2-RNNN servomotor is equipped with a plain shaft and an electrically-released holding brake. Bosch Rexroth Indramat's MSK IndraDyn S Synchronous Motors series motor uses an optical EnDat2.1 encoder and relies on natural convection cooling. It delivers 110 Nm max torque and 36.5 Nm continuous torque at standstill.

Technical Specifications

Cooling
Natural convection

Power Connector
B-Side

Encoder Technology
Optical

Encoder Turn Type
Multiturn Absolute

Encoder Interface
EnDat2.1

Encoder Resolution
2048 signal periods

Motor Length
C

Motor Size
101

Holding Brake
With holding brake, electrically-released

Holding Brake Torque
70 Nm

Constraint
Requires Cooling FN

Design
Increased concentricity

Product Type
IndraDyn S Synchronous Servomotor

Shaft Type
Plain shaft

Rated Speed Code
0300

Continuous Current at Standstill 100 K
21.3 A

Continuous Torque at Standstill 100 K
36.5 Nm

Maximum Current
84.2 A

Maximum Torque
110.0 Nm

Winding Inductivity
6,000 mH

Frequently Asked Questions

How does the EnDat 2.1 multiturn absolute encoder on MSK101C-0300-NN-M2-BG2-RNNN improve commissioning and control-loop stability?

It delivers absolute position over multiple turns with bidirectional diagnostics for minimizing homing cycles and start-up overhead. Its deterministic digital interface reduces interpolation error and enhances low-speed smoothness for tight velocity and position loops.

Why specify a plain shaft on MSK101C-0300-NN-M2-BG2-RNNN instead of a keyed or serrated variant?

The plain (cylindrical) shaft allows precision friction-fit or shrink-fit couplings that minimize backlash and runout to match the motor’s increased concentricity design. It eases alignment in high-accuracy machine axes and gearhead integrations.

How does the electrically-released holding brake (70 Nm) interact with safety and power-loss events on MSK101C-0300-NN-M2-BG2-RNNN?

The spring-applied, power-to-release brake clamps on power loss for holding vertical loads or tooling at rest. It disengages cleanly when energized for motion to support safe stops in packaging, handling and press feeders.

How does 6,000 mH phase inductivity influence inverter selection and current ripple on MSK101C-0300-NN-M2-BG2-RNNN?

Its higher inductivity attenuates current ripple and improves current-loop stability for easing EMI filtering. It is important to choose IndraDrive-class inverters with suitable DC-link voltage and switching frequency to maintain dynamic response without exceeding voltage limits.

How does “increased concentricity” in this IndraDyn S design affect application accuracy for MSK101C-0300-NN-M2-BG2-RNNN?

Its enhanced rotor/shaft concentricity reduces mechanical runout for lowering cogging-related torque ripple and improving interpolation quality. Its result is smoother surface finish in milling and steadier registration in web handling.

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Internal Product Review

The Rexroth Indramat’s MSK101C-0300-NN-M2-BG2-RNNN servomotor pairs a plain shaft with an electrically-released 70 Nm brake for easy integration and safe operations. It uses an optical EnDat 2.1 multiturn feedback system and gets cool through natural-convection process. This motor comes with a B-side power point for simplifying layouts. It offers 36.5 Nm of continuous and 110 Nm peak torque to suit installation with packaging, printing, robotics and metal-forming drives.