Dual encoders BLDC servo motor for OpenArm
HM Series Planetary Joint Servo Motors. These integrated modules are widely used as joint actuators in humanoid robotics, robotic arms (compatible with OpenARM), and related quadruped/biped projects using MIT-style control.
Fully Integrated Design: Combines the driver (ESC), dual encoders, brushless motor, and planetary reducer into a single compact housing.
MIT Control Mode Support: Compatible with the MIT open-source actuator control framework (highly popular for dynamic legged robotics and torque-controlled arms).
Dedicated Upper Computer Software: Provided with test software for easy calibration, debugging, and tuning.
OpenARM Hardware Compatibility: The mounting dimensions are designed to seamlessly fit OpenARM projects.
Simplified Daisy-Chain Cabling: Features a convenient pass-through power and communication interface (in-and-out routing) to optimize wiring throughout the robot.
Duty Cycle & Working Window Parameters
The datasheets define the performance limits across different operational timelines and thermal equilibrium.
Model: HM5710G36
Short Duration (5 min): 9.9 Nm @ 74 RPM (4.8A)
Intermittent (20 min): 8.4 Nm @ 79 RPM (3.8A)
Continuous (Thermal Equilibrium): 6.7 Nm @ 82 RPM (3.1A)
Model: HM5710G10
Short Duration (5 min): 2.90 Nm @ 280 RPM (4.7A)
Intermittent (20 min): 2.35 Nm @ 290 RPM (3.8A)
Continuous (Thermal Equilibrium): 1.84 Nm @ 301 RPM (3.1A)
Core Application Breakdown
Humanoid & Quadruped Robots: Ideal for hip, knee, and ankle joints where high torque density, back-drivability, and precise torque estimation (via MIT mode) are essential.
Robotic Arms: Perfect for compact joints requiring embedded dual absolute encoders to track both motor and output load positions natively.
Dual encoders integrated servo motor for SCARA
For rotary table, servo actuator or SCARA Robotic Arm
Product Features
Mechanical Multi-turn Absolute Encoder: No battery required, high reliability. Single-turn 15-bit, multi-turn 800 turns (positive/negative 400 turns). Single-turn and multi-turn versions are optionally available.
Multi-stage DD Motor Structure: High torque output.
Integrated Servo Drive: Simplified wiring and highly compact size.
FOC Vector Control: Supports position, speed, and current loops.
Home Return Function: Capable of searching for the home pulse after power-on to accurately reset the zero position.
16-bit Electronic Gear Function.
Multiple Control Modes:
Position Mode: Communication control, Pulse + Direction, Orthogonal pulse signal.
Speed Mode: Communication control, PWM control.
Torque Mode: Communication control, PWM control.
Comprehensive Protection: Features stall protection, overcurrent protection, overvoltage protection, and overtemperature protection.
Isolated Communication: CANopen / Modbus-RTU 485 communication options available.
