Overview
MUWEIDU L9050 Motor is a low-speed, high-precision brushless DC servo motor designed for speed/position control via RS485 or CAN communication. It supports PC-based parameter tuning/testing and firmware upgrade, and is positioned for integrated electric drive applications requiring accurate low-speed positioning.
Key Features
- Series of low-speed & high-precision brushless DC motors
- Hollow-shaft design
- Stable & smooth operation
- CE certified
- Integrated high precision
- Lightweight construction, high torque performance
- Meets the requirements of low-speed and high-precision position control
- High-performance 32-bit MCU (MS Series compatible with all control commands of the MF Series)
- Premium silicon steel sheets and high-temperature resistant high-performance permanent magnets used as core motor materials
- Outer rotor multi-stage flattened design for higher torque in space-constrained applications
- Brushless structure with high-performance bearings for smoother rotation and longer service life
- High-precision, low-temperature-drift alloy resistors for accurate current sampling and control
- Full N-channel three-phase full-bridge drive with low internal resistance and high current output
- Supports seamless switching between torque open-loop, speed and position control modes
- Input voltage (drive): 12~60V
- Main control (drive): 32-bit MCU with 72MHz operating frequency
- Precision feedback (drive): 18-bit single-turn absolute encoder
- One-time calibration, zero position never lost
Specifications
| Model | L9050 |
| Rated Voltage | 24V |
| Rated Current | 1.78A |
| Peak Power | 10W |
| Rated Torque | 2.5N.m |
| Peak Torque | 3.4N.m |
| Rated Speed | 20rpm |
| Encoder | 15bit or 18bit |
| Rotor Inertia | 4656gcm^2 |
| Motor Temperature Monitoring | YES |
| Control Modes | Speed/Position |
| Communication Protocol | RS485 or CAN |
| Overall Dimensions | Phi89mm x 53mm |
| Weight | 945g |
Interface Definition
| ID SWITCH | Supported |
| CAN/RS485 | Supported |
| B/L | RS485-B or CAN-L |
| A/H | RS485-A or CAN-H |
| V- | Negative power supply |
| V- | Negative power supply |
| V+ | Positive power supply |
| V+ | Positive power supply |
| T | UART transmitter |
| R | UART receiver |
| G | Signal GND |
Application Scenarios
- Humanoid robots
- Robotic arms
- Exoskeletons
- Quadruped robots
- AGV vehicles
- ARU robots
- 360° camera
- Handheld camera
- LiDAR
- Gimbal
Manuals
For wiring guidance, integration support, or document access help, contact support@rcdrone.top or visit https://rcdrone.top/.
Details

Built for accurate low-speed positioning, the L9050 series combines a hollow-shaft layout with stable, smooth rotation.

Core materials and drive design focus on torque density, long service life, and reliable low-speed high-precision control.

CAN/RS485 bus communication and absolute encoder feedback support speed and position control with PC-based configuration.

Quick reference for the ID switch and the CAN/RS485 plus power and UART pin assignments during wiring and integration.

Parameter tuning, testing, and firmware upgrades can be handled on a PC, with multiple control modes and encoder options available.
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