R911346442 (MSK101C-0300-NN-S3-AP0-NNNN)

MSK IndraDyn S Synchronous Motors

MSK101C-0300-NN-S3-AP0-NNNN Series Image

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The R911346442 (MSK101C-0300-NN-S3-AP0-NNNN) is an IndraDyn S synchronous servomotor engineered for industrial automation applications, featuring natural convection cooling and standard design. It is constructed with a size 101, length C motor and a shaft with keyway. The model includes a singleturn capacitive Hiperface encoder with 16 signal periods of resolution for precise position feedback, interfacing via a feedback cable. The winding code is 0300, supporting a continuous standstill current of 21.3 A and producing a continuous standstill torque of 36.5 Nm at 100 K. Maximum current and torque ratings are 84.2 A and 110.0 Nm respectively. Winding inductivity is specified at 6,000 mH. The power connector is located on the A-side, and the housing meets IP65 requirements for dust and water ingress protection. No holding brake is included.

Technical Specifications

Protection Class
IP65

Flange
Provided for direct integration into servo system

Installation
Instructions provided in documentation

Frequently Asked Questions

How does natural-convection cooling on MSK101C-0300-NN-S3-AP0-NNNN influence duty and enclosure integration?

Its self-cooled operation reduces auxiliary hardware for aiding sealed cabinets or clean environments where forced airflow is undesirable. Its thermal sizing should consider ambient limits and mounting to maintain continuous stall capability without exceeding winding temperature class.

Why choose a keyway shaft on this MSK101C variant for torque transmission?

The keyed shaft offers positive torque transmission with standard hub components for simplifying interchange with pulleys, couplings or gear inputs. It also eases field service compared to shrink-fit alternatives in many general-automation lines.

What benefits does the capacitive Hiperface single-turn encoder in MSK101C-0300-NN-S3-AP0-NNNN provide for commissioning and control?

The capacitive sensing with Hiperface supports resilient position feedback that is immune to many optical contamination issues, while delivering precise sine/cosine commutation signals. Its interface also exposes encoder memory for device data and zero-set operations for simplifying startup and diagnostics.

How should I interpret the 36.5 Nm continuous stall torque and 110 Nm maximum torque for axis design?

The 36.5 Nm is for thermal steady-state sizing at 100 K stator rise to ensure the load-duty profile stays within thermal limits. Its 110 Nm peak accommodates brief acceleration or disturbance rejection within current and mechanical constraints.

How does winding inductivity (6,000 mH listed) affect current ripple and control bandwidth on the MSK101C?

Its higher inductivity reduces current ripple at a given PWM frequency for aiding smooth torque production, it can limit current-loop bandwidth. It is important to tune current regulators and choose switching frequency to balance responsiveness and losses.

Common Misspellings

Internal Product Review

The Rexroth Indramat’s MSK101C-0300-NN-S3-AP0-NNNN servomotor couples natural-convection cooling with a capacitive Hiperface single-turn encoder (16 signal periods) and keyway shaft. It generates 36.5 Nm continuous stall torque and 110 Nm peak, while its maximum current capability is up to 84.2 A at full load. This unit fits in packaging, printing, robotics and machine-tool axes due to its A-side power connector and its compact “C” layout.