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KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW Bosch Rexroth Indramat

MPN: R911374653

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The Bosch Rexroth Indramat KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW is a motor-integrated servo drive in the KSM Motor Integrated Servo Drives series. It operates with a supply voltage of DC 750 V and features a hybrid connector, plain shaft with seal, and natural convection cooling. This model uses a Hiperface optical multi-turn absolute encoder with a resolution of 128 signal periods and supports Multi-Ethernet communication.

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Product Description:

The KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat within the KSM Motor Integrated Servo Drives series. The unit combines size 041 stator mechanics with drive electronics in a compact housing and is design version 1 in Series 2. A winding code 42 stator and frame length C provide the torque density expected from the basic performance level. By combining the motor and drive in one housing, the unit reduces the need for separate external drive mounting and supports compact machine layouts. Multi-Ethernet communication allows the device to operate directly as a node on several industrial Ethernet topologies.

For power conversion, the drive operates from a DC 750 V intermediate circuit supplied through a single cable that combines power, signal, and protective earth through a Hybrid connector. Heat generated by the inverter stage is removed through natural convection, allowing cabinet-free installation as long as ambient airflow is not obstructed. This cooling method avoids the need for a fan or liquid circuit at the drive housing. Rotor position is sensed with a Hiperface feedback system. The scale provides 128 signal periods per mechanical revolution, giving adequate resolution for velocity and position loops even at high motor speed. A factory-fitted shaft seal helps prevent dust or fluid ingress along the output journal.

Because the sensing element is optical, calibration drift associated with magnet aging is avoided, and the encoder stores zero reference across power cycles with its multi-turn absolute memory. Mechanical holding force must be handled externally because the drive is supplied without a holding brake, which lowers rotor inertia for rapid acceleration. Motion is transferred through a plain shaft, so the coupling must provide any required keying or clamping. This shaft style is suited to couplings that secure the connection by external clamping or friction. The shaft seal remains in place to help limit the entry of dust or fluids.

Connection Type
Hybrid Connector
Cooling Type
Natural convection
Design Option
Multi-Ethernet output coupling
Design Version
1
Encoder Interface
Hiperface
Encoder Resolution
128 signal periods
Encoder Technology
Optical
Encoder Turn Type
Multi-turn absolute
Holding Brake
Without holding brake
Master Communication Protocol
Multi-Ethernet
Motor Length
C
Motor Size
041
Performance Level
Basic
Product Type
Motor-Integrated Servo Drive
Safety Technology
Without safety technology
Series
2
Shaft Seal
Yes
Shaft Type
Plain shaft
Supply Voltage
DC 750 V
Winding Code
42
  • KSM021B041C42NM1HG0ETNND7TOFW
  • KSMO2.1B-O41C-42N-M1-HGO-ET-NN-D7-TO-FW
  • KSM02.1B 041C 42N M1 HG0 ET NN D7 TO FW
  • KSM2.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW

Frequently Asked Questions about KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW:

Q: What type of electrical connection does the KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW servo drive use?

A: The KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW uses a hybrid connector for simple and consolidated electrical connections.

Q: How is the KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW servo drive cooled?

A: This model operates with natural convection cooling and does not require external fans.

Q: What type of encoder interface is featured on the KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW?

A: The encoder interface is Hiperface, providing multi-turn absolute position feedback for enhanced precision.

Q: Does the KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW include a holding brake?

A: There is no holding brake included with this servo drive model.

Q: What is the supply voltage specification for the KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW?

A: The supply voltage for this model is DC 750 V, suitable for high-power applications.


Internal Product Review

  • ‘‘The KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-TO-FW is a Bosch Rexroth motor-integrated servo drive with natural convection cooling and a hybrid connector. Optical encoder feedback with multi-turn absolute functionality supports precise motion control and dependable position retention. Multi-Ethernet communication paired with DC 750 V supply capability makes the unit a strong fit for modern servo architectures.’’

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