Actuator Modules

KAIST Exoskeleton Lab

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Actuator Modules 목록
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SAM10 (Smart Actuator Module 10)

SAM10 is an MD-embedded actuator featuring optimized hardware design and motor control algorithms. It is primarily used in applications requiring moderate assistance, such as support for elderly users or individuals recovering from stroke.
Features
  • Actuator with Built-in Reducer
    • Utilizes a 200W frameless motor
    • Compact design with a planetary gear integrated inside the frameless motor
    • High efficiency and low backlash
  • Integrated BLDC Motor Driver
    • Integrated BLDC motor driver with advanced control technology
    • Achieves a current control bandwidth of up to 5 kHz
    • Embedded advanced control algorithms
  • Superior Power Density
    • Power density 3–4 times higher than that of comparable commercial products
    • Specifications suitable for a wide range of robotic applications
    • Low-impedance design for force-mode control applications
Specification
Motor
Parameter angel KIT SAM10 Unit
Min. Typ. Max.
Power 50 100 200 W
Voltage 12 24 48 V
No-Load Speed 70 150 310 rpm
Rated Speed 40 85 180 rpm
Max Torque 20 Nm
Rated Torque 9.8 Nm
Rated Current 6.7 A
Stall Torque (25) Nm
Stall Current 19.2 A
Reducer Type Planetary + Spur
Reduction Ratio 18.75
Weight 580 g
Dimensions 69(W) × 150(L) × 49(H) mm
Mounting Type 2-M3, 2-M4
Absolute Encoder (Motor/Output) 13/13 bit
Incremental Encoder (Motor) 13 bit
Electrical
Parameter Symbol Mn.
Absolute Max. ratings Max. Operating Voltage Vmd 12
Max. Logic Operating Voltage Vcc 4.5
Max. Output Current to BLDC (continuous) Imax -
Electrostatic Discharge Voltage (HBM) Vesd -
I/O Characteristics Supply Current for Logic Devices Idd -
I/O Output Low Level Voltage Vol 0
I/O Output High Level Voltage Voh 2.0
I/O Input Low Level Voltage Vil 0
I/O Input High Level Voltage Vih 2.0
Environmental Conditions Operating Temperature Top 0
Storage Temperature Tst -40
Mechanical Dimensions Weight - -
Dimensions - -
Mounting Type - -
Control
Supported Sensors Absolute Encoder SSI with 13bit x 2
Incremental Encoder RS422 with 13bit x 1
Supported Control Mode Speed Yes
Force Yes
Homing Yes
Supported Algorithm Impedance Control Yes
Friction Compensation Yes
Gravity Compensation Yes
I/O Interfaces ADC x 2, 12bit resolution
CAN (cascading supported) CAN-FD (8M bps)
USB for FW upgrade Yes
Indicators LEDs 1 EA, RGBW
ID Setup Via DIP switches 4 bit with IO mapping

J-Series

The J-Series consists of high-power rotary actuators with low mechanical impedance. These actuators have been utilized in the hip flexor and knee flexor joints of the WalkON Suit F1.
Features
  • Actuator with Built-in Reducer
    • Utilizes a 200W frameless motor
    • Compact design with a planetary gear integrated inside the frameless motor
    • High efficiency and low backlash
  • Low Mechanical Impedance
    • Torque sensor-less actuator configuration
    • Model-based nonlinear friction compensation
    • Linearized dynamics compensation
Specification
Parameter J-Series Unit
Power 1000 W
Voltage 48 V
No Load Speed 115 rpm
Maximum Torque 200 Nm
Rated Torque 100 Nm
Torque Constant 0.16 Nm/A
Reducer Type Planetary
Reduction Ratio 24.42