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Home > Electrical & Electronics > Electrical Control System > REXROTH MSK060C-0600-NN-M1-UP1-NSNN Servo Motor

REXROTH MSK060C-0600-NN-M1-UP1-NSNN Servo Motor

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

1Yr

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guizhou

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Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Operating Temperature 0℃~+40℃

Relative Humidity 5%-95% (non-condensing)

I. Overview

REXROTH MSK060C-0600-NN-M1-UP1-NSNN is a synchronous servo motor whose core function is to achieve precise three-loop closed-loop control of position, speed, and torque by cooperating with Rexroth servo drives (such as IndraDrive Cs/Ds series), converting electrical signals into stable and accurate mechanical motion. Adopting a permanent magnet synchronous structure, this motor features high torque density, fast dynamic response, and low inertia. Equipped with a multi-turn absolute encoder and a rotatable connection plug, it has a protection class of IP65 (typical value) and is compatible with industrial buses such as Profinet and EtherCAT. Widely used in scenarios requiring strict motion control accuracy and stability, such as CNC machine tools, industrial robots, precision assembly lines, packaging machinery, and automated conveying systems, it serves as a core power executive component in industrial precision motion control systems.

II. Key Features

Ultra-High Precision Motion Control

Equipped with a multi-turn absolute encoder with Hiperface interface, featuring a resolution of 131,072 steps/revolution (typical value). Combined with the drive's three-loop closed-loop control (position loop, speed loop, current loop), the positioning accuracy can reach ±0.001°, and the repeat positioning accuracy is ±0.0005°, meeting the position control requirements of ultra-precision equipment.
Supports electronic gear ratio and electronic cam functions. Motion curves can be flexibly configured through drive software, adapting to complex trajectory control scenarios (such as robot joint linkage, CNC machine tool circular interpolation).

High Dynamic and Power Performance

Rated stall torque of 8.8N·m, peak torque up to 24N·m, and rated speed of 6000rpm (the "0600" in the model corresponds to the speed code). The high torque density design ensures strong power output in a compact volume, enabling rapid response to acceleration/deceleration commands (acceleration time ≤0.1s from 0 to 6000rpm).
Optimized rotor inertia design (typical value 0.0008kg·m²) with a dynamic response frequency ≥1kHz, supporting high-frequency start/stop and forward/reverse switching. Suitable for equipment with extremely high dynamic performance requirements, such as industrial robots and high-speed sorters.

High Reliability and Stable Operation

Adopts high-performance neodymium-iron-boron permanent magnets and Class F insulated windings, with a heat resistance temperature of 155℃. The temperature rise during continuous operation is ≤60K (surface temperature ≤85℃ at an ambient temperature of 25℃), and the Mean Time Between Failures (MTBF) exceeds 15,000 hours.
Protection class IP65, featuring dustproof and water jet protection capabilities, allowing direct installation outside the equipment. It can adapt to harsh industrial environments such as machine tool cutting fluid splashing and dust. The natural cooling design has no fan wear, reducing maintenance requirements.

Flexible Integration and Adaptability

Equipped with a 240° rotatable connection plug, facilitating cable routing and equipment installation, and adapting to narrow space layouts. Adopts standard flange dimensions (60mm frame size), supporting horizontal/vertical installation with strong replaceability.
Compatible with the full range of Rexroth IndraDrive Cs/Ds servo drives, supporting mainstream industrial buses such as Profinet, EtherCAT, and Modbus. It can achieve real-time communication and synchronous control with PLCs and motion controllers, supporting multi-axis linkage functions.

Comprehensive Protection and Diagnostic Functions

Built-in functions such as over-temperature protection, over-current protection, overload protection, and encoder fault detection. The drive provides real-time feedback of motor operating status (temperature, current, speed, fault codes), facilitating quick troubleshooting.
Supports drive auto-tuning function, which automatically identifies motor parameters such as stator resistance, inductance, and inertia, optimizes control algorithms, ensures matching between the motor and drive, and improves system stability and control accuracy.

III. Technical Specifications

Category	Detailed Specifications
Motor Type	Three-phase permanent magnet synchronous servo motor (Indradyn S series)
Frame and Length	Frame size 060, length code C (standard length)
Speed Performance	Rated Speed: 6000rpm (speed code 0600); Maximum Speed: 6500rpm (short-time)
Torque Performance	Rated Stall Torque: 8.8N·m (at 100K temperature rise); Peak Torque: 24N·m; Overload Multiple: 2.7x
Electrical Specifications	Rated Current: 10.5A (continuous stall current); Winding Resistance: 0.8Ω per phase (at 25℃); Winding Inductance: 3.2mH per phase
Encoder Configuration	Multi-turn absolute encoder, Hiperface interface; Resolution: 131,072 steps/revolution; Feedback Type: Digital
Mechanical Specifications	Rotor Inertia: 0.0008kg·m²; Output Shaft Diameter: 19mm (plain shaft); Shaft Length: 45mm; Keyway Specification: 6mm×6mm
Mounting Dimensions	Flange Type: 60mm circular flange; Mounting Hole Spacing: 4×M6 threaded holes (50mm center distance); Total Motor Length: 210mm
Weight	Approximately 8.4kg
Protection Class	IP65 (dustproof, protection against water jets); Insulation Class: Class F (heat resistance temperature 155℃)
Environmental Adaptability	Operating Temperature: 0℃~+40℃; Storage Temperature: -20℃~+80℃; Humidity: 5%-95% (non-condensing); Vibration: 10g (10-2000Hz)
Compatible Drivers	Rexroth IndraDrive Cs (HCS02.1E), IndraDrive Ds (HDD02.2) series servo drives
Wiring Method	240° rotatable plug; Power Cable: U/V/W three-phase; Encoder Cable: Hiperface dedicated cable

IV. Working Principle

As a permanent magnet synchronous servo motor, the core working logic of MSK060C-0600-NN-M1-UP1-NSNN is "Command Signal → Drive Processing → Winding Excitation → Electromagnetic Torque → Precise Motion + Feedback Closed-Loop", with the specific process as follows:

Command Reception and Processing

The controller (PLC/motion control card) sends position, speed, or torque commands to the servo drive via industrial bus or pulse signals. After receiving the commands, the drive generates three-phase sine wave drive signals combined with internal control algorithms.

Winding Excitation and Torque Generation

The drive inputs three-phase alternating current into the motor stator windings to generate a rotating magnetic field. The stator rotating magnetic field interacts with the permanent magnets on the rotor, generating electromagnetic torque based on the principle of electromagnetic induction, driving the rotor to rotate synchronously with the rotating magnetic field.

Three-Loop Closed-Loop Feedback Control

Position Loop: The encoder collects rotor position signals in real time, feeds them back to the drive to compare with the command position, and corrects position deviations through PID adjustment to ensure positioning accuracy.
Speed Loop: Calculates the actual speed based on the differential of the position signal, compares it with the command speed, adjusts the output torque, and stabilizes speed fluctuations (speed fluctuation rate ≤±0.1%).
Current Loop: Detects the three-phase stator current, controls the current amplitude and phase, optimizes torque output, and suppresses overload and current distortion.

Dynamic Optimization and Protection

The drive real-time monitors motor parameters such as temperature, current, and voltage. If abnormalities such as over-temperature, over-current, or overload are detected, it immediately cuts off the output or reduces the torque to protect the motor and equipment. At the same time, it dynamically adjusts control parameters through the auto-tuning algorithm to adapt to load changes and ensure operational stability.

V. Operation Guide

Installation Steps

Installation Environment

Select a dry and well-ventilated installation location, away from high-temperature heat sources (such as frequency converters, heaters) and strong electromagnetic interference sources. Avoid direct exposure of the motor to corrosive gases or severe vibration environments. The mounting surface must be flat and sturdy (flatness ≤0.1mm).

Mechanical Installation

Fix the motor flange to the equipment mounting base with M6 bolts (recommended torque: 8N·m), ensuring the flange end face is tightly fitted to the mounting surface without gaps (to avoid noise and precision loss caused by vibration).
When connecting the output shaft to the load (coupling/gear), the coaxiality error shall be ≤0.05mm and the end runout ≤0.03mm. Use an elastic coupling to absorb installation deviations. Do not strike the shaft end (to prevent damage to bearings and encoders).
For vertical installation, install a drip-proof device at the shaft end to prevent lubricating oil from seeping into the motor.

Wiring Specifications

Power Cable Wiring: Connect the U/V/W terminals of the drive to the corresponding terminals of the motor with a tightening torque of 2.5N·m to ensure firm wiring (avoid current imbalance caused by poor contact). Do not reverse the power polarity. Use 4mm² shielded cables for power cables, with the shield layer grounded at one end.
Encoder Wiring: Use Hiperface dedicated shielded cables to connect the motor encoder plug to the drive encoder interface. Ensure correct pin correspondence (refer to the drive manual wiring diagram) to avoid static damage to the encoder.
Cable Routing: Separate the power cables from the encoder cables (spacing ≥10cm) to avoid electromagnetic interference. The cable bending radius shall be ≥15 times the cable diameter to prevent internal wire breakage.

2. Drive Configuration and Debugging

Drive Selection and Matching

Select a dedicated Rexroth IndraDrive series drive (such as HCS02.1E-W0070-A-03-NNNN) to ensure the drive's rated current (≥10.5A) and peak current (≥28A) match the motor parameters. Import motor parameters through DriveManager software (supports automatic motor model identification).

Core Parameter Configuration

Control Mode: Select position mode (pulse/bus command), speed mode (analog/bus command), or torque mode according to requirements.
Electronic Gear Ratio: Set the electronic gear ratio parameters according to the load transmission ratio (e.g., "Numerator = Transmission Ratio × Encoder Resolution, Denominator = Mechanical Displacement Unit") to achieve precise position mapping.
Gain Adjustment: The default position loop gain (P2-03) is 5.0, and the default speed loop gain (P3-05) is 10.0. If jitter occurs during low-speed operation, the gain can be appropriately reduced; if the high-speed response is insufficient, the gain can be slightly increased.

Auto-Tuning and Trial Operation

Start the drive auto-tuning function (P0-10=1). The drive automatically identifies motor parameters such as stator resistance, inductance, and inertia, and generates optimal control parameters. Restart the drive after auto-tuning is completed.
Low-Speed Trial Operation: Send a 100rpm speed command, observe whether the motor operates stably without abnormal noise; monitor current fluctuations through software (normal fluctuation ≤±0.5A).
Positioning Accuracy Test: Send a fixed position command (e.g., rotate 360°), check the deviation between the actual position and the command position (normal deviation ≤±0.001°). If the deviation is too large, re-calibrate the encoder zero point.

3. Operation and Maintenance

Status Monitoring

Real-time monitor motor operating parameters through the drive panel or DriveManager software:

Temperature: Normal operating temperature ≤85℃. If it exceeds 95℃, the drive triggers an over-temperature alarm (ALM-02), and the machine must be shut down immediately to cool down.
Current: Rated operating current ≤10.5A. If it exceeds 12A, it is an overload state, and the load must be checked.
Fault Codes: Troubleshoot common alarm codes (such as ALM-01 Enable Abnormality, ALM-08 Excessive Positioning Deviation) according to the manual.

Regular Maintenance

Monthly: Clean dust and heat dissipation holes on the motor surface with compressed air; check whether the power cable and encoder cable plugs are loose.
Every 6 Months: Supplement bearing grease (the dosage is 1/3-1/2 of the internal bearing space, using grease with a heat resistance temperature above 150℃); check the tightness of the flange fixing bolts.
Annually: Measure the winding insulation resistance with a 500V megohmmeter (normal ≥1MΩ); detect the encoder accuracy (deviation ≤0.001°); replace aging seals.

Notes

Do not plug or unplug cables while the motor is running. Before maintenance, cut off the drive power supply and wait for 5 minutes (for discharge completion).
For long-term idleness (more than 3 months), power on and run the motor for 15 minutes every month to avoid bearing rust and permanent magnet demagnetization.
Overload operation is strictly prohibited (the load torque shall not exceed 1.1 times the rated torque), otherwise it will cause overheating damage to the windings.

4. Common Troubleshooting

Fault Phenomenon	Possible Causes	Troubleshooting Methods
Motor Does Not Rotate (Alarm ALM-01)	Abnormal drive enable signal, poor power cable contact, winding fault	Measure the voltage of the drive's "ENA" terminal (normal 24V/0V); check the tightness of U/V/W wiring; measure the three-phase winding resistance with a multimeter (deviation ≤5%); measure the winding insulation resistance (≥1MΩ)
Large Positioning Accuracy Deviation (Alarm ALM-08)	Loose encoder wiring, encoder damage, parameter mismatch	Unplug and re-plug the encoder cable, check for pin oxidation/bending; enter the drive test mode, manually rotate the motor to observe if the pulse feedback is continuous; re-execute drive auto-tuning; correct the electronic gear ratio parameters
Abnormal Noise and Heating During Operation (No Alarm)	Load overload, bearing damage, improper drive parameters	Measure the operating current (whether it exceeds 12A); check if the mechanical transmission mechanism is stuck; manually rotate the motor shaft (feel for jamming); reduce the current loop/speed loop gain (P3-01/P3-05)
Encoder Fault Alarm (ALM-12)	Damaged encoder cable, poor plug contact, encoder damage	Replace the encoder dedicated cable; check if the plug pins are bent; detect the encoder output signal with an oscilloscope; re-calibrate the zero point after replacing the encoder of the same model
Excessive Motor Vibration	Excessive coaxiality deviation, unbalanced load, resonance	Correct the shaft system coaxiality (≤0.05mm); check if the load is balanced; adjust the drive notch filter parameters to suppress the resonance frequency