4.95 based on 202 reviews

🙶 Product was as advertised, got the machine back up and running at a fraction of OEM price. Delivered on ti... 🙷

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

MPN: R911335839

No Tariffs On US Orders
  • Rated 4.6 (30 total ratings)
  • Straightforward Pricing: No Rush Fees, No Credit Card Fees
In-Stock, Ships Today

Preparing your secure checkout page...

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

Quote Request Form:

Warranty
Wake Industrial Warranty

To contact sales for pricing and lead time:

Payment Methods

Visa
Mastercard
AmEx
Wire Transfer

Shipping Methods

DHL
UPS
FedEx
Freight

Our Credentials

Cary Chamber
DUNS Registered
SAM Registered
BBB Accredited

Product Description:

The KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-NN-FW is a motor-integrated servo drive produced by Bosch Rexroth Indramat for the KSM Motor Integrated Servo Drives series. Its integrated power electronics remove the need for a separate cabinet-mounted drive, allowing motion control to be mounted directly on moving axes. This configuration streamlines wiring in conveying, pick-and-place, and small-gantry systems where compact decentralized control is advantageous. By placing the inverter at the axis, the system shortens motor power paths and reduces the amount of cabinet hardware needed elsewhere in the machine.

The drive is supplied from a common DC link at DC 750 V, so the power section can be daisy-chained with other KSM devices without additional AC distribution. Power, safety I/O, and Ethernet are combined in a single Hybrid Connector, reducing cable runs to one umbilical. Heat generated by the inverter and motor is removed through natural convection, so no fans or liquid circuits are required. For networked operation, the controller supports Multi-Ethernet, allowing selection among EtherNet/IP, PROFINET, or Sercos over the same port. Torque production follows winding code 42, which identifies the stator resistance and inductance values used by the drive for rated current delivery.

Position feedback relies on a Multi-turn absolute optical encoder that provides 128 signal periods per revolution through the Hiperface interface, allowing tight velocity loops and eliminating homing after power loss. It uses an optical scanning principle that offers high signal fidelity in environments subject to electrical noise. A plain shaft in frame size 041 transmits torque, and an integral shaft seal helps block dust and coolant ingress. The housing uses motor length C and design version 1, and the unit is delivered without a holding brake or integrated safety functions. This arrangement fits compact axes where installation space around the carriage or tooling plate is limited.

Connection Type
Hybrid Connector
Cooling Type
Natural convection
Design Option
Standard
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
  • KSM021B041C42NM1HG0ETNND7NNFW
  • KSMO2.1B-O41C-42N-M1-HGO-ET-NN-D7-NN-FW
  • KSM02.1B 041C 42N M1 HG0 ET NN D7 NN FW
  • KSM2.1B-041C-42N-M1-HG0-ET-NN-D7-NN-FW
Fault / Error Code What it means Recommended troubleshooting step
F218 Integrated heat-sink temperature exceeded shut-down limit Check free-air clearance (≥ 80 mm), clean axial blower on motor rear plate, lower ambient below 45 °C; let unit cool, then issue a Class-1 Reset.
F219 Motor stator thermistor signalled over-temperature (≈ 155 °C) Reduce load-torque or duty cycle; verify the motor’s optional external fan, allow full cool-down before re-enable.
F226 DC-link undervoltage while drive was enabled Inspect Mi hybrid cable for loose 24 V/700 V contacts, check HMV/HMS supply for brown-outs; re-enable only after nominal bus voltage returns.
F227 DC-link over-voltage during braking (regen energy too high) Lengthen deceleration ramps, activate kinetic buffering, or add an external brake resistor to Mi chain; clear fault when VBUS ≤ 730 V.
F8022 Encoder-1 signal incorrect (noise, cable or Hiperface-DSL fault) Reseat hybrid cable, keep it away from power leads, check shielding continuity and replace encoder if fault repeats.
F8028 Over-current in power stage (IGBT trip) Test motor phases for shorts, verify rated current (12 A peak), check tuning for aggressive gains; reset after cause is removed.
F8064 Open phase in motor winding (cable break) Megger motor leads, examine hybrid-cable crimps both ends, repair or replace damaged conductor, then reset drive.
F8070 +24 V logic-supply undervoltage Measure 24 V at X31 of HMV/HMS unit, tighten spring-clamp terminals, size PSU for ≥ 3 A per axis.
F8135 Velocity trend exceeded (axis cannot reach commanded speed) Inspect mechanics for stiction/jam, lower acceleration limits, retune velocity loop in IndraWorks.
F2100 Illegal access to command-value / parameter memory Power-cycle drive; if error returns, reflash firmware or replace MMC; restore backup parameter set.
Model Cont. current (A) Peak current (A) Rated speed (rpm) Holding brake Field-bus / Option Encoder type Typical mass (kg)
KSM02.1B-041C-42N-M1-HG0-ET-NN-D7  9:00 AM 25 A 4 200 Yes (HG0) SERCOS III (D7) Hiperface-DSL 9.8
KSM02.1B-041C-42N-M1-HP0-NN-D7 9:00 AM 25 A 4 200 No brake (HP0) SERCOS III Hiperface-DSL 9.2
KSM02.1B-041C-42N-M1-HP2-NN-D7 9:00 AM 25 A 4 200 Brake + 24 V fan (HP2) SERCOS III Hiperface-DSL 9.9
KSM01.2B-041C-42N-M1-HP0-NN-D7 7.5 A 22 A 4 200 No SERCOS III Hiperface-DSL 8.3
KSM02.2C-061C-35N-M1-HP0-NN-D7 12:00 AM 36 A 3 500 No SERCOS III EnDat 2.2 11
KSM03.1B-045C-42N-M1-HG0-NN-D7 18 A 54 A 3 000 Yes SERCOS III Hiperface-DSL 15.2
Error Code Meaning
F218 Drive heat-sink over-temperature
F219 Motor winding over-temperature
F226 DC-bus undervoltage while enabled
F227 DC-bus over-voltage (regen energy)
F8022 Encoder-1 signals incorrect
F8028 Over-current in power stage
F8064 Open motor phase detected
F8070 +24 V logic supply undervoltage
F8135 Velocity threshold exceeded
F2100 Invalid access to parameter / command memory

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

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

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

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

A: This servo drive features natural convection cooling and does not require external cooling devices.

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

A: The KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-NN-FW includes a multi-turn absolute optical encoder with Hiperface interface.

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

A: This model operates without an integrated holding brake.

Q: Which master communication protocol is compatible with the KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-NN-FW?

A: The KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-NN-FW supports Multi-Ethernet master communication protocol.


Internal Product Review

  • ‘‘The KSM02.1B-041C-42N-M1-HG0-ET-NN-D7-NN-FW is a motor-integrated servo drive with Multi-Ethernet communication and a DC 750 V supply. Natural convection cooling and a hybrid connector support clean integration and dependable thermal performance in machine builds. Optical Hiperface feedback gives the unit a precise, well-engineered character for motion applications.’’

Motion Industries logo
3M logo
IBM logo
Gexpro Logo
Caterpillar logo
NASA logo
Ford logo
Vallen logo