MSK076C-0300-NN-M1-UP0-NNNN

MSK IndraDyn S Synchronous Motors

Rated 4.1 stars (11 total reviews)

Bosch Rexroth Indramat MSK Synchronous Motors MSK076C-0300-NN-M1-UP0-NNNN image

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The MSK076C-0300-NN-M1-UP0-NNNN synchronous servomotor from Bosch Rexroth Indramat is part of the MSK IndraDyn S Synchronous Motors series. It features natural convection cooling, optical encoder technology with 128 signal periods, a rotatable 240° encoder connector, and operates without a holding brake. It delivers 13.5 Nm continuous torque, 43.5 Nm maximum torque, and reaches up to 4700 RPM. The voltage constant is 113 V per 1000 RPM.

Technical Specifications

Cooling
Natural convection

Encoder Connector
Rotatable, 240°

Encoder Technology
Optical

Encoder Resolution
128 signal periods

Motor Length
C

Motor Size
076

Holding Brake
Without holding brake

Design
Standard

Product Type
IndraDyn S Synchronous Servomotor

Shaft Type
Shaft with keyway

Rated Speed Code
0300

Winding Inductance
12.6 mH

Voltage Constant
113 V per 1000 RPM

Thermal Time Constant
60 minutes

Maximum Speed
4700 RPM

Continuous Torque (100K Overtemperature)
13.5 Nm

Winding Resistance at 20 degrees C
1.85 Ohms

Maximum Torque
43.5 Nm

Frequently Asked Questions

What does the 113 V/1000 rpm voltage constant imply for drive selection on MSK076C-0300-NN-M1-UP0-NNNN?

The back-EMF scales with speed (~113 V per krpm), so the DC bus and inverter must allow commanded speed without saturation. Its data is referenced to ~750 V DC link conditions in catalog tables for guiding bus-voltage and field-weakening margins.

Why specify an optical encoder with 128 signal periods and a 240° rotatable connector?

The 128-period Hiperface option offers clean sine-cosine feedback with low signal bandwidth demands and wide max-speed capability, while multi-turn variants (M1) add absolute turns counting. Its 240° rotatable connector simplifies cable exit orientation and routing in dense machines.

How do 1.84 Nm/A torque constant and current limits translate to acceleration planning for MSK076C-0300-NN-M1-UP0-NNNN?

The torque ≈ Kt × I; with value of Kt≈1.84 Nm/A identifies motor torque and load inertia determines achievable angular acceleration (α = T/J).

What are the control implications of 12.6 mH phase inductance and 1.85 Ω resistance in this motor?

The inductance shapes current-loop bandwidth and switching-frequency losses, while its resistance sets copper loss (I²R) and thermal rise at standstill torque. Its drive current controller should be tuned with these parameters and thermal model to respect the 60-minute thermal constant.

What environmental protection and mechanical options exist in the MSK line relevant to this product code?

The MSK motors are designed to IP65, with options for shaft keyway, reduced runout and brake variants, while its electrical and encoder connections are standardized across sizes. It simplifies interchange and spares strategies across machine families.

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Internal Product Review

The Bosch Rexroth Indramat’s MSK076C-0300-NN-M1-UP0-NNNN servomotor is equipped with an optical 128-period encoder that connects through a 240° rotatable connector. It uses natural-convection cooling and possess a keyed shaft design. This motor delivers a rated torque of 13.5 Nm in continuous mode and 43.5 Nm of peak at 4700 RPM. It has no holding brake and its winding impedance is specified as 1.85 Ω to support applications in packaging, machine-tool, printing and robotics.