KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW

MPN: R911320573

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The KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW servo motor from Bosch Rexroth delivers 495 watts of power, 5500 RPM, and features an IP65 protection rating, ensuring reliable performance in harsh environments with accurate multiturn encoder feedback.

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Product Description:

The KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW is a distributed servo motor developed by Bosch Rexroth. This motor is designed for use in industrial automation and features integrated control electronics that simplify installation and reduce system complexity. With an IP65 protection rating, the motor is safeguarded against dust and water ingress which makes it suitable for challenging environments. It operates with a power supply ranging from 540 to 750V DC and delivers high torque performance that makes it ideal for demanding tasks.

The KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW servo motor offers a rated power of 495 watts. It consumes only 15.5 watts during regular operation which provides energy efficiency. It generates a continuous torque of 2.2 Nm and a maximum torque of 9.4 Nm which allows it to handle varying loads effectively. The motor supports a maximum speed of 5500 RPM and operates at a maximum current of 6.8 amps. With a rotor inertia of 0.00017 kgxm^2, it delivers precise acceleration and deceleration. The cooling system is based on natural convection that eliminates the need for additional external cooling mechanisms. For enhanced positional control, the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW servo motor comes equipped with a multiturn encoder that ensures accurate feedback. Its communication with the master system is established via the SERCOS interface which is a robust and widely used communication protocol in automation.

Weighing 5.5 kg, the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW servo motor is designed to operate in temperatures ranging from 0 to 40 degrees C. It maintains noise levels below 75 dB(A) which ensure quieter operation. The motor features a shaft with a keyway and sealing ring, compliant with DIN 6885-1 standards which adds to its reliability. The hybrid connector integrates both power and communication into a single interface that streamlines cabling and setup. The motor provide flexibility for different automation requirements and applications.

Communication Interface
SERCOS
Continuous Torque
2.2 Nm
Maximum Current
6.8 amps
Maximum Speed
5500 RPM
Maximum Torque
9.4 Nm
Noise Level
Below 75 dB(A)
Power Consumption
15.5 watts
Rated Power
495 watts
Rotor Inertia
0.00017 kgxm^2
Weight
5.5 kg
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  • KSM1.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW
Fault / Error Code What it Means Trouble Shooting Step
F218 In-drive heat-sink temperature above shutdown limit Improve cabinet / machine airflow, clean the motor-side blower, wait until < 45 °C, then issue a Class 1 Reset before re-enabling.
F219 Motor stator sensor reports over-temperature (≈ 155 °C) Reduce duty cycle or load, verify that the motor housing is free of dust/oil, allow full cool-down, then reset.
F226 DC-bus undervoltage detected while still enabled Check the IndraDrive Mi hybrid-cable supply for loose connections or brown-outs, ensure Drive Enable drops before mains contactor opens, restore supply and reset.
F227 DC-bus over-voltage during braking Lengthen decel ramps in PLC, add / up-size braking resistor in the Mi chain, clear fault when bus ≤ 730 V.
F8022 Encoder-1 signals incorrect (noise, shielding, or encoder fault) Reseat / replace hybrid cable, keep it away from motor power cabling, swap encoder if error repeats.
F8028 Over-current in the power stage (IGBT trip) Inspect motor phases for shorts, verify current limits in parameters, test IGBT module if fault is repeatable.
F8064 Open phase in motor winding (one phase missing) Check hybrid cable crimps at both ends, meg-test motor windings, repair broken conductor then reset.
F8070 +24 V control-supply undervoltage Measure the 24 V rail on X31 of the supply unit, tighten terminals, up-size PSU if it dips below 22.8 V.
F8135 Velocity threshold exceeded (trend monitoring) Verify mechanical load hasn’t jammed, retune speed loop, check gear-ratio parameters, then clear fault.
F8140 Controller memory error – parameters invalid Reload saved parameter file, or re-flash firmware via IndraWorks; power-cycle to complete the process.
Model Continuous Current (A) Peak Current (A) Rated Speed (rpm) Brake Field-Bus Interface Typical Mass (kg)
KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW 7.5 22 4 500 No SERCOS III ≈ 8.3
KSM01.1B-041C-42N-M1-HP0-SE-NN-D7-NN 7.5 22 4 500 No SERCOS III ≈ 8.3
KSM02.1B-035C-42N-M1-HP0-SE-NN-D7-NN 12 36 4 500 No SERCOS III ≈ 9.4
KSM02.2C-072C-42N-M1-HP0-SE-NN-D7-NN 16 48 3 000 No SERCOS III ≈ 12.0
KSM03.1B-060C-42N-M1-HP0-SE-NN-D7-NN 24 72 3 000 No SERCOS III ≈ 16.8
KSM01.2B-041C-42N-M1-HP0-RS-NN-D7-NN 7.5 22 4 500 No EtherNet/IP (RS) ≈ 8.3
Error Code Meaning
F218 Drive-amplifier heatsink over-temperature shutdown
F219 Motor over-temperature shutdown (thermistor trip ≈ 155 °C)
F226 DC-bus undervoltage detected while drive is enabled
F8022 Encoder 1 signals incorrect (cable/shielding or encoder fault)
F8025 Over-voltage in power section (regen energy too high)
F8028 Over-current in power section (IGBT trip)
F8057 Device overload shutdown – supply or drive exceeded thermal/elec. limits
F8064 Interruption of motor phase – open phase or broken conductor
F8070 +24 V DC control-supply undervoltage
F8091 Power section defective – internal hardware monitor trip

Frequently Asked Questions about KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW:

Q: How does the rotor inertia affect performance of the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW?

A: The low rotor inertia (0.00017 kgxm^2) of the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW allows for precise acceleration and deceleration. This improves control during dynamic operations in automation.

Q: Why is natural convection used in the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW?

A: Natural convection provides efficient cooling in the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW, eliminating the need for external cooling systems. This simplifies installation and reduces energy consumption.

Q: How does the IP65 protection help the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW in industrial environments?

A: The IP65 rating of the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW ensures full protection against dust and water ingress. This makes it ideal for harsh and demanding conditions.

Q: What benefits does the multiturn encoder offer in the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW?

A: The multiturn encoder in the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW provides highly accurate positional feedback. This enhances precision in automation tasks requiring detailed motion control.

Q: Why is a hybrid connector used in the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW?

A: The hybrid connector in the KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW integrates power and communication into one interface. This simplifies setup and minimizes cabling complexity for efficient system installation.


Internal Product Review

  • ‘‘The KSM01.2B-041C-42N-M1-HP0-SE-NN-D7-NN-FW servo motor excels in industrial environments with its IP65 rating, energy-efficient 495W output, and precise multiturn encoder. Its hybrid connector and 0.00017 kgxm^2 rotor inertia ensure streamlined installation and accurate control, making it an excellent choice for automation tasks.’’

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