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MSK076C-0300-NN-M1-UG0-NNNN Bosch Rexroth Indramat

MPN: R911314849

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The Bosch Rexroth Indramat MSK076C-0300-NN-M1-UG0-NNNN is part of the MSK IndraDyn S Synchronous Motors series and features natural convection cooling with a standard design. This synchronous servomotor includes a rotatable encoder connector, Hiperface encoder interface, and 128 signal period optical multiturn absolute encoder technology. It has a plain shaft, motor size 076, and does not include a holding brake.

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Product Description:

The MSK076C-0300-NN-M1-UG0-NNNN is a synchronous servo motor manufactured by Bosch Rexroth Indramat and placed in the MSK IndraDyn S Synchronous Motors series. As a drive element, it converts inverter current into mechanical motion for positioning tables, rotary modules, and other precision axes that require fast response and repeatable accuracy. It is used with the IndraDrive platform, so its electrical and feedback interfaces match compatible drive components used in assembly, handling, and processing machines. This arrangement supports controlled starts, stops, and speed changes in automated equipment.

Its thermal management relies on natural convection, eliminating external blowers and allowing installation without forced airflow. The motor is supplied without a holding brake, so load holding must be provided by the drive or by external mechanical retention. Signal exchange is handled through a rotatable 240° encoder connector that simplifies cable routing in confined spaces and helps reduce cable strain near guards or machine frames. Feedback uses the Hiperface protocol, enabling digital identification and automatic parameter download at power-up. Position data come from an optical sensing system that divides one revolution into 128 signal periods, while the multiturn absolute feature tracks shaft position across multiple revolutions. This allows the drive to recognize rotor position immediately after startup.

The mechanical envelope follows the series coding: frame size 076 sets the stator size, and length code C identifies the stack depth used for this torque class. Power is transmitted through a plain shaft, allowing direct coupling with gearheads or belt pulleys without keyways. Electrically, winding code 0300 matches coil resistance and inductance to compatible IndraDrive amplifier currents, supporting dynamic torque while keeping temperature rise within the standard housing. The shaft arrangement also suits clamp-style couplings, where accurate alignment is preferred over keyed engagement. The compact frame is suitable for positioning tables and rotary modules where mounting space is limited.

Cooling
Natural convection
Design
Standard
Encoder Connector
Rotatable, 240°
Encoder Interface
Hiperface
Encoder Resolution
128 signal periods
Encoder Technology
Optical
Encoder Turn Type
Multiturn Absolute
Holding Brake
Without holding brake
Motor Length
C
Motor Size
076
Product Type
IndraDyn S Synchronous Servomotor
Shaft Type
Plain shaft
Winding Code
0300
  • MSK-076C-0300-NN-M1-UG0-NNNN
  • MSK076C 0300 NN M1 UG0 NNNN
  • MSK076C0300NNM1UG0NNNN
  • MSK76C-0300-NN-M1-UG0-NNNN

Fault / Drive Error

Meaning (Likely Cause)

Corrective Action

Drive not-ready (“bb” on H1)

+24 V *RF* enable or 3-φ mains absent

Restore control voltage & mains fuses, then issue a Class-1 reset 

F207  Operating-mode not initialised

One of S-0-0032…35 = 0

Reload valid mode parameters; acknowledge with S1 or software reset

F208  Motor-type change detected

Drive dataset ≠ motor ID tag

Upload the correct **MSK076C-0300** file, run *Basic-Load*, power-cycle drive

F212  Encoder signals out of range

Sin/cosine amplitude too low / noisy (shield, cable or encoder)

Reseat feedback plug, route ≥100 mm from power leads, replace encoder if needed

F218  Drive heat-sink over-temperature

Cabinet airflow blocked or fan failed

Clean filters, verify fan, improve ventilation; cool drive before reset

F219  Motor over-temperature

Thermistor > ≈155 °C (over-load or poor cooling)

Reduce duty cycle, allow motor to cool, inspect temperature wiring

F220  Bleeder-resistor over-temperature

Regenerative energy above resistor rating

Lengthen decel ramp or fit / up-rate external brake resistor

F226  DC-link undervoltage (drive enabled)

Mains sag or aged DC-bus capacitors

Check 3-φ supply, supply module, replace weak capacitors

F228  Excessive control deviation

Command ≠ feedback (axis jam / poor tuning)

Free mechanics, lower acceleration, retune loops, re-reference axis

F229  Encoder-1 quadrant error

Phase sequence or noise on encoder signals

Inspect/replace feedback cable, improve shielding & grounding

F230  Max. encoder-1 signal frequency exceeded

Axis velocity above encoder interface limit

Check gearing & speed limits; fit higher-speed encoder if required 

Part Number

Cont. Torque @100 K (Nm)

Peak Torque (Nm)

Max Speed (rpm)

Cont. Current (A)

MSK076C-0300-NN-M1-UG0 

13.5

43.5

4 700

8.1

MSK076C-0450-NN-M1-UG0

13.5

43.5

6 000†

13.7

MSK070D-0450-NN-M1-UP1

20

52.5

6 000

22

MSK071C-0300-NN-M1-UG1

14

44

5 000

8.5

MSK060C-0600-NN-M1-UG1

8.8

24

6 000

10.5

MSK050C-0600-NN-M1-UG0

5.5

15

6 000

6.8

Error Code Meaning
F207 Operating-mode not initialised (S-0-0032…35 = 0)
F208 Motor-type change detected – drive data ≠ motor ID tag
F212 Encoder signals out of range (low / noisy sin-cos amplitude)
F218 Drive heat-sink over-temperature – amplifier shutdown
F219 Motor over-temperature (thermistor trip > ≈ 155 °C)
F220 Bleeder-resistor over-temperature (regen overload)
F226 DC-link undervoltage while drive is enabled
F228 Excessive following-error / control deviation
F229 Encoder-1 quadrant error (phase-sequence / noise)
F230 Max. encoder-1 signal frequency exceeded (axis too fast)

Frequently Asked Questions about MSK076C-0300-NN-M1-UG0-NNNN:

Q: What cooling method does the MSK076C-0300-NN-M1-UG0-NNNN servomotor use?

A: The MSK076C-0300-NN-M1-UG0-NNNN utilizes natural convection for cooling, allowing operation without external fans.

Q: What type of shaft does the MSK076C-0300-NN-M1-UG0-NNNN motor have?

A: This model is equipped with a plain shaft, suitable for applications not requiring a keyway.

Q: What encoder interface is featured on the MSK076C-0300-NN-M1-UG0-NNNN?

A: The encoder interface on this servomotor supports Hiperface communication.

Q: Does the MSK076C-0300-NN-M1-UG0-NNNN include a holding brake?

A: The MSK076C-0300-NN-M1-UG0-NNNN is built without a holding brake.

Q: What type of encoder and resolution does the MSK076C-0300-NN-M1-UG0-NNNN servomotor use?

A: The encoder on this motor is a multiturn absolute optical encoder with 128 signal periods for high resolution feedback.


Internal Product Review

  • ‘‘The MSK076C-0300-NN-M1-UG0-NNNN is an IndraDyn S Synchronous Servomotor from Bosch Rexroth Indramat, featuring a plain shaft and a multiturn absolute optical encoder with Hiperface interface. Its natural convection cooling and rotatable 240° encoder connector ensure flexible installation and reliable operation. This motor is a strong choice for demanding automation systems requiring precise feedback and easy integration.’’

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