R911311672 (MSK101D-0300-FN-M2-AG0-RNNN)

MSK IndraDyn S Synchronous Motors

MSK101D-0300-FN-M2-AG0-RNNN Series Image

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The R911311672 (MSK101D-0300-FN-M2-AG0-RNNN) is an MSK series synchronous servomotor engineered for high dynamic performance, extended power range, and precise torque delivery. It features liquid cooling and a plain output shaft, favoring applications with continuous start-stop cycles and a high repetition rate. The integrated optical multiturn absolute encoder with EnDat 2.1 interface provides an encoder resolution of 2048 signal periods and system accuracy of ±20 angular seconds. The motor supports a continuous current at standstill of 34.9 A (100 K), continuous torque at standstill of 57.0 Nm (100 K), maximum current of 137.7 A, maximum torque of 160.0 Nm, and winding inductivity of 3,200 mH. Design elements include increased concentricity and a non-positive, zero-backlash shaft-hub connection. Dual independent temperature monitoring systems are incorporated to control thermal load during operation.

Technical Specifications

Construction
Compact

System Accuracy
±20 angular seconds

Temperature Monitoring Systems
Temperature sensor, temperature model

Tolerates Shaft Extension Runout and Axial Runout
Yes, according to DIN 42955

Cooling Method
Liquid cooling

Suitable for Continuous Start-Stop Operations
Yes

Frequently Asked Questions

For Bosch Rexroth Indramat MSK101D-0300-FN-M2-AG0-RNNN, what coolant specs and plumbing are required?

Use compatible materials (Al-Mg housings, Viton O-rings) and keep flow/pressure within Rexroth’s liquid-cooling table; design in bleed points and temperature sensing near the inlet. Follow the 3 bar max pressure, 0.11 L channel volume, and condensation-avoidance rule during commissioning.

How does the listed winding inductance (~3.2 mH) impact drive tuning and cabling?

Higher phase inductance eases current-loop stability but increases electrical time constant, so verify current bandwidth and adjust current controller gains accordingly; also consider cable length/LC effects for EMI. Vendor data for the MSK101D family cites ~3.2 mH and typical torque constants for tuning baselines.

What are the practical effects of using the motor without a holding brake?

On vertical or safety-critical axes you’ll need an external brake or counterbalance; the drive’s STO alone won’t prevent gravity-induced motion. Rexroth offers alternative brake options with specified holding torques and switching characteristics if required.

How does “increased concentricity” influence coupling and precision?

This option tightens mechanical runout, reducing radial/axial misalignment error transferred to the load and easing servo tuning for high-precision axes. It is intended for applications like grinding or semiconductor handling where motion quality and spindle-side TIR matter.

What are the environmental and insulation implications for this motor in industrial cells?

The MSK line is typically IP65 with insulation class F, suiting washdown-prone machine spaces when connectors and seals are properly mated. Verify ingress protection at the connector set and any brake/vent interfaces during integration.

Common Misspellings

Internal Product Review

The MSK101D-0300-FN-M2-AG0-RNNN servomotor from Bosch Rexroth features liquid cooling, a plain shaft, and a multiturn absolute optical encoder with EnDat2.1 interface. It offers 57.0 Nm continuous torque, 160.0 Nm peak torque, and operates at a rated speed code of 0300. This motor is ideal for robotics, CNC machining, and semiconductor equipment.

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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