
Overview
The EYOU PHU14H-70-F is a harmonic-reducer robot actuator with a built-in driver, torque sensor, dual absolute encoders, and EtherCAT/CANopen communication. Select a 50 or 100 reduction ratio and a with-brake or without-brake configuration for robotics applications. The 50/100 ratio choices have distinct output torque, speed, stiffness, and inertia values listed below; both operate from a 24–48 VDC supply.
Features
- Harmonic reducer with a split-body motor-and-reducer construction.
- Built-in driver with Power (DC in/DC out), CAN FD (In, Out), EtherCAT (In, Out), and STO (1, 2) interfaces.
- EtherCAT and CANopen communication protocols.
- Dual absolute encoders: motor side 19-bit and reducer side 19-bit.
- Torque sensor with a 35 N·m range, plus torque closed-loop bandwidth and impedance-control specifications.
- Brake selections: With Brake or Without Brake. Ratio selections: 50 or 100.
- Control modes: Profile Position (PP), Profile Velocity (PV), Profile Torque (PT), Cyclic Synchronous Position (CSP), Force Control (CSF), etc.
Specifications
Model and shared specifications
| Parameter | Value |
|---|---|
| Module Model | PHU-14H-70-F |
| Reducer Type | Harmonic |
| Motor Rated Power | 105 W |
| Motor Rated Torque | 0.25 N·m |
| Motor Peak Torque | 0.75 N·m |
| Brake (B/N) | B/N |
| Dimensions (Outer Diameter × Axial) | Φ70 × 84 mm |
| Weight (B/N) | 0.98 / 0.9 kg |
| Hollow Diameter | 9 mm |
| Housing Appearance (Process Color) | Black Anodized (Non-sandblasted) |
| Reducer Appearance (Process Color) | Outer Ring Blackened |
| Radial (dynamic/static) Allowable Load at Output | 270 N |
| Axial (dynamic/static) Allowable Load at Output | 270 N |
| Output Bending Moment | 41 N·m |
| Torque Sensor Range | 35 N·m |
| Torque Sensor Accuracy | ≤±0.5% F.S |
| Torque Sensor Resolution | 0.1% F.S |
| Torque Sensor Overload Limit | 300% F.S |
| Torque Sensor Sampling Frequency (Digital) | 8 kHz |
| Torque Closed-loop Bandwidth | 30 Hz |
| Impedance Control Frequency | 1 kHz |
| Rated Operating Voltage | 48 VDC |
| Operating Voltage Range | 24–48 VDC |
| Driver | Built-in |
| Encoder/Bit | Dual Absolute / Motor side 19Bit & Reducer side 19Bit |
| Driver Interface (see terminal model description) | Power (DC in DC out), CAN FD (In,Out), EtherCAT (In,Out), STO (1,2) |
| Communication Protocol (see communication description) | EtherCAT / CANopen |
| Control Modes | Profile Position (PP), Profile Velocity (PV), Profile Torque (PT), Cyclic Synchronous Position (CSP), Force Control (CSF), etc. |
| Operating Ambient Temperature | -10–60 °C |
| Housing Operating Temperature | ≤60 °C |
| Noise | ≤60 dB |
| Life | >10000 h |
Ratio-specific specifications
The source lists the following paired values in 50 / 100 ratio order.
| Parameter | Ratio 50 | Ratio 100 |
|---|---|---|
| Joint Rated Power — Life Constraint | 28 W | 20 W |
| Rated Torque at 2000 rpm Input | 6.6 N·m | 9.6 N·m |
| Average Load Torque at Output | 8.6 N·m | 13.5 N·m |
| Peak Torque at Output | 23 N·m | 34 N·m |
| Max Allowable External Torque at Output (Instantaneous) | 43 N·m | 66 N·m |
| Backlash | ≤20 Arcsec | ≤20 Arcsec |
| Rated Speed at Output — Life Constraint | 40 rpm | 20 rpm |
| Peak Speed at Output | 90 rpm | 45 rpm |
| Reducer Torsional Stiffness | 4600 N·m/rad | 6000 N·m/rad |
| Reducer Input Inertia (B) | 36.733 kg·mm² | 36.733 kg·mm² |
| Equivalent Joint Output Inertia (B) | 91833 kg·mm² | 367330 kg·mm² |
Applications
- Humanoid robots
- Robotic arms
- Exoskeletons
- Quadruped robots
- AGV vehicles
- ARU robots
Documentation
- EYOU CANable — User Manual (PDF)
- EYOU PHU14H 70 F Drawing — Drawing (PDF)
- EYOU PHU RHU Series Joint CANopen EtherCAT Communication — Manual (PDF)
- EYOU Robot Joint Catalog — Robot Joint Product Catalog (PDF)
- EYOU RP Series EN V1.0 20260608 — User Manual (PDF)
- EYOU UART Debug Module — User Manual (PDF)
Visual Details
Product Views


Features and Design



Application Examples



Interfaces and Connections
