Overview
DAMIAO DM-JH17-2EC Motor series includes DM-JH17-51-2EC and DM-JH17-101-2EC, designed for robotic joints and actuators requiring CAN control, dual encoders, and hybrid force-position control support. Rated voltage is 24V (supports 24-48V), with CAN control interface up to 5Mbps and UART tuning at 921600 bps.
Applications
- Humanoid Robots
- Robotic Arms
- Exoskeletons
- Quadruped Robots
- AGV Vehicles
- ARU Robots
Key Features
- Models: DM-JH17-51-2EC and DM-JH17-101-2EC
- Control interface: CAN @ 5Mbps (Max)
- Tuning interface: UART @ 921600 bps
- Dual encoders: 2 encoders, 17-bit resolution, ±0.03 degrees accuracy
- MIT Mode: Position & Velocity Mode
- Control modes: Force-Position Hybrid Control; Cyclic Synchronous Position/Velocity/Torque Mode
- Protection functions: driver/motor over-temperature, over-voltage, communication loss, over-current, under-voltage (details in Specifications)
Specifications
| Parameter | DM-JH17-51-2EC | DM-JH17-101-2EC |
|---|---|---|
| Rated Voltage | 24V (supports 24-48V) | 24V (supports 24-48V) |
| Rated Phase / Supply Current | 4.62A / 4.04A @ 24V; 4.62A / 3.98A @ 48V | 6.31A / 3.23A @ 24V; 6.31A / 1.72A @ 48V |
| Peak Phase / Supply Current | 12.94A / 7.88A @ 24V; 12.94A / 7.68A @ 48V | 16.85A / 6.56A @ 24V; 16.85A / 3.72A @ 48V |
| Rated Torque | 16 N·m | 24 N·m |
| Peak Torque | 24 N·m | 54 N·m |
| Rated Speed | 40 rpm | 20 rpm |
| Max Allowable Speed | 60 rpm | 30 rpm |
| Gear Ratio | 51:1 | 101:1 |
| Number of Pole Pairs | 10 | 10 |
| Phase Inductance | 107 µH (@25°C) | 107 µH (@25°C) |
| Phase Resistance | 0.161 Ω (@25°C) | 0.161 Ω (@25°C) |
| Outer Diameter | 80 mm | 80 mm |
| Height | 70 mm | 70 mm |
| Through Hole Size | 15 mm | 15 mm |
| Motor Weight | Approx. 985g | Approx. 985g |
| Encoder Resolution | 17 bit | 17 bit |
| Number of Encoders | 2 | 2 |
| Encoder Accuracy | ±0.03 degrees | ±0.03 degrees |
| Control Interface | CAN @ 5Mbps (Max) | CAN @ 5Mbps (Max) |
| Tuning Interface | UART @ 921600 bps | UART @ 921600 bps |
| MIT Mode | Position & Velocity Mode | Position & Velocity Mode |
| Control Modes | Force-Position Hybrid Control, Cyclic Synchronous Position Mode, Cyclic Synchronous Velocity Mode, Cyclic Synchronous Torque Mode | Force-Position Hybrid Control, Cyclic Synchronous Position Mode, Cyclic Synchronous Velocity Mode, Cyclic Synchronous Torque Mode |
| Protection | Driver over-temperature protection: 100°C, motor will exit enable mode. Motor over-temperature protection: configurable, recommended ≤90°C, motor will exit enable mode. Over-voltage protection: configurable, recommended ≤54V, motor will exit enable mode. Communication loss protection: if no CAN command is received within the set period, motor will exit enable mode. Over-current protection: configurable, recommended ≤0.98, motor will exit enable mode. Under-voltage protection: motor will exit enable mode if supply voltage falls below set value; supply voltage should not be lower than 20V. | Driver over-temperature protection: 100°C, motor will exit enable mode. Motor over-temperature protection: configurable, recommended ≤90°C, motor will exit enable mode. Over-voltage protection: configurable, recommended ≤54V, motor will exit enable mode. Communication loss protection: if no CAN command is received within the set period, motor will exit enable mode. Over-current protection: configurable, recommended ≤0.98, motor will exit enable mode. Under-voltage protection: motor will exit enable mode if supply voltage falls below set value; supply voltage should not be lower than 20V. |
Mechanical Drawing Notes (selected callouts)
- Through hole: Ø15 +0.10 (Through)
- Outer diameters shown: Ø80 (body), Ø75 (rear view), Ø74 (front view callout), Ø61 (rear view callout), Ø54 (front view callout)
- Side view heights shown: 40, 59, 70
- Side view diameters shown: Ø70 (top), Ø60 (bottom), Ø62 (bottom callout)
- Angles shown: 45°, 15°, 37.50°
- Hole callouts shown: 4-Ø3 (+0.02/0); 8-Ø3.2 depth 10; M3 depth 7.5; 8-M3 depth 10.5; 4-M4 depth 4.5; 8-M3 depth 4.5
- Note: It is not recommended to use the M4 threaded holes on the back cover for connecting load-bearing structural parts, as it may easily cause damage to the back cover structure.
For selection guidance and integration support (CAN/UART), contact support@rcdrone.top or visit https://rcdrone.top/.
Details

Use the dimensioned drawing to verify mounting hole layout, through-hole size, and overall height before integrating the actuator into a joint design.
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