1. Introduction
This manual provides essential information for the safe and efficient operation of your SUSWE SU900 series High Power Frequency Inverter. The SU900 series is a vector control Variable Frequency Drive (VFD) designed for precise motor speed control in various industrial applications. Please read this manual thoroughly before installation, operation, or maintenance to ensure proper usage and prevent damage or injury.
2. Safety Information
WARNING: Improper installation or operation can lead to serious injury or death. Only qualified personnel should install, operate, and maintain this equipment.
- Always disconnect power before performing any wiring or maintenance.
- Ensure proper grounding of the inverter and motor.
- Do not touch electrical components when power is applied.
- Verify input voltage matches the inverter's specifications.
- Install the inverter in a well-ventilated area, free from moisture, dust, and corrosive gases.
- Observe all local and national electrical codes.
3. Specifications
The SUSWE SU900 series frequency inverters are general-purpose devices suitable for a wide range of motor control applications.
3.1 General Product Information
| Parameter | Value |
|---|---|
| Name | General purpose inverter |
| Input Voltage | 220V / 380V (depending on model) |
| Input Frequency | 50/60HZ |
| Power Specifications | 0.75 - 45KW |
| Rated Current | 1.5 - 320A |
| Output Frequency | 50-400HZ |
| Protection Level | IP20 |
| Cooling Mode | Self-cooling fan |
| Temperature Range | -20 ~ +60°C |
| Motor Usage | Suitable for fans and pumps |
| Scope of Use | Woodworking machinery, food machinery, textile machinery, plastic machinery, CNC machine printing machinery, automation, and other motor control applications. |
| Product Protection | 6 great protections |
| Certification | CE, FCC, RoHS |
3.2 Model-Specific Parameters (Example: SU900-7R5G3)
| Parameter | Value |
|---|---|
| Model | SU900-7R5G3 |
| Rated Current | 17A |
| Adapted Motor | 7.5KW 10Hp |
| Input Voltage | Three phase 380V |
| Output Voltage | Three phase 380V |
| External Dimensions | 202 x 102 x 161.68 MM |
| Gross Weight | 2.1 Kg |
3.3 800/900 Series Index
Refer to the table below for detailed power and current specifications across the SU800 and SU900 series.
4. Setup & Installation
4.1 Physical Dimensions
The SU900 series inverters come in various sizes depending on their power rating. Below are diagrams for different external unit sizes (C1, C2, C3, C4, C5) and the models they correspond to.
4.2 Terminal Instructions
The main circuit terminals are used for power input, braking resistance, and motor output connections.
| Terminals | Name | Instruction |
|---|---|---|
| R, S, T / L, N | Power supply input terminals | Connection point of three-phase 380V or single-phase 220VAC power supply |
| P+, PB | Brake electric resistance connection terminals | Connect brake electric resistance |
| U, V, W | Frequency converter output terminals | Connect three-phase motor |
| Grounding terminals | Grounding terminals |
4.3 Wiring Diagrams
Ensure correct wiring according to your specific inverter model and power supply type. Always connect the ground wire.
5. Operating Instructions
5.1 Control Panel Overview
The inverter features a user-friendly control panel for monitoring and adjusting parameters. The panel can also be detached for remote operation using an external extension network cable.
5.2 Key Functions
- Knob: Adjusts speed or parameter values.
- Display Screen: Shows frequency, current, voltage, and other operating data.
- Run Key (RUN): Starts the motor.
- Stop/Reset Key (STOP/RESET): Stops the motor or resets errors.
- Confirm Key (ENTER): Confirms parameter settings.
- Programming Key (PROG): Enters/exits programming mode.
- Increment Key (▲): Increases parameter values or navigates up.
- Decrement Key (▼): Decreases parameter values or navigates down.
- Shift Key (>): Shifts cursor position during parameter entry.
- Multi-function Keys (MFK): Customizable functions, refer to the full product manual for specific programming.
5.3 Basic Operation Sequence
- Power On: Ensure all wiring is correct and secure before applying power.
- Parameter Setting: Use the PROG key to enter programming mode. Navigate through parameters using ▲/▼, adjust values with the knob, and confirm with ENTER.
- Start Motor: Press the RUN key to start the motor.
- Adjust Speed: Use the knob to adjust the motor speed during operation.
- Stop Motor: Press the STOP/RESET key to stop the motor.
6. Maintenance
Regular maintenance ensures the longevity and reliable operation of your inverter.
- Cleaning: Keep the inverter clean and free from dust. Use a soft, dry cloth. Do not use liquid cleaners.
- Ventilation: Ensure adequate airflow around the inverter. Regularly check that the cooling fan is free from obstructions and operating correctly. The DC fan provides efficient heat dissipation.
- Connections: Periodically check all terminal connections for tightness. Loose connections can cause overheating and malfunction.
- Environment: Maintain the operating environment within specified temperature and humidity ranges. The inverter features a three anti-paint process for improved stability in harsh environments.
7. Troubleshooting
If the inverter is not functioning as expected, consider the following basic troubleshooting steps:
- No Power: Check input power connections and circuit breaker.
- Motor Not Running: Verify wiring to the motor, check control panel settings, and ensure the RUN command is active.
- Overload Error: Check motor load, ensure the motor is not jammed, and verify inverter capacity matches motor requirements.
- Overvoltage/Undervoltage Error: Check input power supply stability.
- Overheat Error: Ensure proper ventilation, clean cooling fins, and check fan operation.
For detailed error codes and advanced troubleshooting, please consult the comprehensive product manual or contact technical support.
8. User Tips
- Initial Setup: Double-check all wiring before applying power. Incorrect wiring is a common cause of initial setup issues.
- Parameter Adjustment: When adjusting parameters, make small changes and observe the motor's response. Refer to the detailed manual for parameter descriptions.
- Environmental Considerations: While the inverter is designed for industrial environments, protecting it from excessive moisture, dust, and extreme temperatures will extend its lifespan.
- Remote Panel: Utilize the detachable panel for convenience in installations where the main unit is not easily accessible.
9. Warranty & Support
For warranty information, technical support, or service inquiries, please contact your vendor or the manufacturer directly. Ensure you have your product model number (e.g., SU900-7R5G3) and purchase details available when seeking support.
