R911340428 (MSK100A-0200-NN-S1-BP1-NNNN)

MSK IndraDyn S Synchronous Motors

MSK100A-0200-NN-S1-BP1-NNNN Series Image

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The synchronous servomotor R911340428 (MSK100A-0200-NN-S1-BP1-NNNN) from Bosch Rexroth features a standard design with a shaft with keyway and a B-side power connector. It is equipped with an optical singleturn Hiperface encoder, offering 128 signal periods. The motor delivers a continuous torque at standstill of 17.0 Nm at 100 K, with a continuous current of 10.4 A, and reaches a maximum torque of 54.0 Nm and maximum current of 41.4 A. The thermal time constant is 48 Nm, and winding inductivity is 13,900 mH. Cooled by natural convection, it is rated IP65 and includes an electrically-released holding brake with 32 Nm torque. Operating within a 0 to 40°C ambient temperature, the unit weighs 23 kg and achieves up to 440 rpm with noise emission below 75 dB(A).

Technical Specifications

Product Type
Synchronous Motor

Installation Space Requirement
Minimal

Protection Level
IP 65

Functionality
Rotary main and Servo platform

Thermal Protection Standards
Class 155

Maximum Velocity
440 rpm

Thermal Time Constant
48 Nm

Noise Output
less than 75 db(A)

Maximum Current
41.4 A

Torque Constant
1.89 Nm/A

Suitable Temperature
0 C to 40 C

Weight
23 kg

Rotor Inertia Level
Low

Stability
High (with wider air gaps)

Frequently Asked Questions

What benefits does the electrically released 32 Nm holding brake provide on MSK100A-0200-NN-S1-BP1-NNNN during E-stop or power-loss events?

The spring-applied design clamps the axis when power is removed for preventing drift on vertical or overhauling loads. It facilitates safe states without relying on drive torque for complementing STO/SafeMotion in IndraDrive systems.

Why choose natural-convection cooling for this Bosch Rexroth IndraDyn S motor, and what are the thermal implications?

The passive cooling simplifies integration where airflow is available and dust ingress is a concern, while no auxiliary blower wiring is needed. Its thermal models must respect enclosure temperature rise, while forced-air or liquid options exist in the MSK family for higher continuous power.

How does the single-turn Hiperface optical encoder in MSK100A-0200-NN-S1-BP1-NNNN aid servo loop stability and commissioning?

The 128-period Hiperface scale yields clean sinusoidal signals for precise interpolation for improving phase-margin in high-bandwidth position or velocity loops. Its autoconfiguration via the interface accelerates startup and reduces parameter entry errors.

How do the torque ratings (≈17 Nm continuous at standstill; ≈54 Nm peak) impact sizing for intermittent indexing duties?

The peak torque covers acceleration and settling windows, while the continuous value limits dwell/hold segments to avoid thermal overload. Its duty-cycle calculations should verify RMS torque and current against drive limits.

What’s the role of the keyway shaft and B-side power connector on MSK100A-0200-NN-S1-BP1-NNNN in mechanical and electrical integration?

Its keyed shaft simplifies positive torque transmission to couplings or pulleys with repeatable phasing. It eases cable routing in tight cabinets for aligning with standardized MSK power/encoder interfaces.

Common Misspellings

Internal Product Review

The MSK100A-0200-NN-S1-BP1-NNNN servomotor from Bosch Rexroth is a standard IndraDyn S model with a 100 frame size and natural convection cooling. It delivers 17.0 Nm continuous torque and uses a Hiperface singleturn optical encoder with 128 signal periods. Ideal for packaging, CNC machining, and automation systems requiring precise control.

1620 Old Apex Road
Cary, NC 27513, USA

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Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

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

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