1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the SUSWE SU600 Series Variable Frequency Drive (VFD). The SU600-5R5G1 model is designed to convert single-phase 220V input power into three-phase 380V output, enabling precise speed control for compatible motors up to 5.5KW (7.5HP).
Please read this manual thoroughly before installation and operation to ensure proper usage and to prevent potential hazards or equipment damage. Keep this manual for future reference.
2. Safety Precautions
Always observe the following safety precautions to prevent electric shock, fire, or personal injury:
- Installation, wiring, and maintenance must be performed by qualified personnel only.
- Ensure the power supply is disconnected before performing any wiring or maintenance.
- Verify that the input voltage matches the VFD's specifications (single-phase 220V).
- Ensure proper grounding of the VFD and the motor.
- Do not touch the VFD terminals immediately after power-off, as residual voltage may be present. Wait at least 5 minutes for capacitors to discharge.
- Do not operate the VFD with damaged cables or loose connections.
- Protect the VFD from moisture, dust, corrosive gases, and direct sunlight.
- Ensure adequate ventilation around the VFD to prevent overheating.
3. Specifications
3.1 General Product Parameters (Model: SU600-5R5G1)
| Parameter | Value |
|---|---|
| Brand | SUSWE |
| Model Number | SU600-5R5G1 |
| Input Voltage | Single-phase 220V |
| Output Voltage | Three-phase 380V |
| Power | 5.5KW (7.5HP) |
| Rated Output Current | 13A |
| Output Frequency | 50-300Hz |
| Dimensions (L x W x H) | 185mm x 87mm x 138mm |
| Installation Size | 172.5mm x 78mm |
| Weight | 1.16Kg |
| Certification | CE |
3.2 SU600 Series Index
The SU600 series offers various models. Refer to the table below for a comprehensive overview of the series specifications.
4. Installation and Wiring
4.1 Physical Installation
The VFD should be mounted vertically in a well-ventilated area, away from direct heat sources, moisture, and excessive dust. Ensure sufficient clearance around the unit for proper airflow and heat dissipation.


4.2 Electrical Wiring
All wiring must comply with local electrical codes and regulations. Use appropriate wire gauges for the rated current. Ensure all connections are secure.
- Input Power Connection: Connect the single-phase 220V input to terminals R and S/L1/L2.
- Output Power Connection: Connect the three-phase motor to terminals U, V, and W.
- Ground Wire: Connect the ground wire to the designated ground terminal.
- Brake Resistor Connection: If a brake resistor is used (e.g., for CNC machine tool selection), connect it to terminals P+ and PB.



4.3 External Control Panel (Optional)
The VFD supports an external operation panel for remote control and monitoring. This humanized design allows for flexible installation and easier access to controls.

5. Operation
5.1 Control Panel Overview
The VFD features an LED display and a set of buttons for parameter setting and operation control:
- LED Display: Shows frequency, voltage, current, and error codes.
- FWD/REV Indicators: Indicate forward or reverse rotation.
- Hz/ALM/V Indicators: Show the displayed parameter (Frequency, Alarm, Voltage).
- PRG (Program): Enters/exits parameter setting mode.
- ENT (Enter): Confirms parameter settings or enters sub-menus.
- Up/Down Arrows: Adjust parameter values or navigate menus.
- RUN: Starts the motor.
- STOP/RST: Stops the motor or resets alarms.
- Speed Control Knob: Adjusts the output frequency/motor speed.
5.2 Basic Operation Demonstration
Watch this video for a visual demonstration of the VFD's panel operation, including starting, stopping, and adjusting motor speed.
Video 5.2.1: Demonstration of the SU600 VFD panel operation, showing speed adjustment and motor control.
For detailed parameter settings and advanced functions, refer to the complete product manual (if available) or contact technical support.
6. Maintenance
Regular maintenance ensures the longevity and reliable operation of your VFD.
6.1 General Care
- Keep the VFD clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Ensure the cooling fan is free from obstructions and operating correctly. Clean fan blades periodically if necessary.
- Check all wiring connections regularly for tightness and signs of wear or damage.
- Inspect the VFD for any signs of physical damage, discoloration, or unusual odors.
6.2 Internal Components
The VFD's core motherboard features advanced frequency conversion smart chip technology, designed to be moisture-proof and anti-static for enhanced durability and performance.

The internal components utilize SMP DIP welding process and a "three anti-paint" treatment (moisture-proof, anti-corrosion, anti-mold) to protect the intelligent drive circuit, ensuring stable operation in various environments.

7. Troubleshooting
This section provides general guidance for common issues. For specific error codes and advanced troubleshooting, consult the full product manual or contact technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| VFD does not power on | No input power, loose wiring, internal fuse blown. | Check power supply, verify wiring, inspect fuses (qualified personnel only). |
| Motor does not start | Incorrect wiring, VFD in stop mode, parameter settings incorrect, motor fault. | Verify motor wiring (U, V, W), press RUN, check frequency/voltage parameters, inspect motor. |
| Overcurrent (OC) fault | Motor overload, short circuit in motor wiring, acceleration time too short. | Reduce motor load, check motor wiring for shorts, increase acceleration time parameter. |
| Overvoltage (OV) fault | Deceleration time too short, regenerative load, high input voltage. | Increase deceleration time parameter, consider adding a brake resistor, check input voltage. |
| Undervoltage (UV) fault | Low input voltage, power supply instability. | Check input power supply voltage, ensure stable power. |
| Overheat (OH) fault | Insufficient ventilation, ambient temperature too high, VFD fan failure. | Ensure proper airflow, reduce ambient temperature, check/replace cooling fan. |
8. User Tips
- Motor Compatibility: Always ensure your motor's power rating (KW/HP) and voltage (380V three-phase) are compatible with the VFD's output specifications.
- Parameter Backup: After configuring your VFD parameters, it's good practice to record them. This can save time during troubleshooting or if settings are accidentally reset.
- External Panel Convenience: If your application requires frequent speed adjustments or remote monitoring, consider utilizing the external operation panel for enhanced convenience and accessibility.
- Heat Management: VFDs generate heat during operation. Proper ventilation and maintaining a clean heatsink are crucial for optimal performance and lifespan.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the manufacturer or your authorized dealer. Keep your purchase records handy when seeking support.
9.1 Certifications
The SUSWE SU600 VFD is CE certified, indicating compliance with European safety, health, and environmental protection requirements.





