1. Safety Information and Notices
Please read this manual carefully before installation, operation, and maintenance to ensure correct and safe use of the product. Keep this manual for future reference.
1.1 Safety Definitions
- Danger: Indicates a hazardous situation which, if not avoided, could result in serious injury or death. This includes operations not performed according to requirements.
- Attention: Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury, or equipment damage. This includes operations not performed according to requirements.
Any injury or loss caused by operation not in accordance with the requirements is not the responsibility of the manufacturer.
2. Setup and Installation
2.1 Product Overview
The SUSWE SU-800/900 series VFD is a high-performance vector type frequency converter designed for various industrial applications. It features simple wiring, energy saving capabilities, and an IGBT module for enhanced performance.
2.2 Dimensions and Mounting
The VFD units come in various sizes depending on their power rating. Ensure adequate space for installation and ventilation.
2.3 Electrical Installation and Wiring
Before installation, read the instructions carefully to prevent dangerous occurrences and improper operation. The wiring is simple and convenient to use.
2.3.1 Main Circuit Terminals
| Terminal Marks | Name | Instruction |
|---|---|---|
| R, S, T / L, N | Power supply input terminals | Connection point of three-phase 380V / single-phase 220VAC power supply |
| P+, PB | Brake electric resistance connect terminals | Connect brake electric resistance |
| U, V, W | Frequency converter output terminals | Connect three-phase motor |
| Grounding terminals | Grounding terminals |
2.3.2 Control Circuit Wiring
The control circuit wiring for all 800/900 series inverters is the same. The diagram below shows the three-phase 380V converter wiring diagram, indicating main loop terminals and control loop terminals.
2.3.3 Control Terminal Functions
For detailed control terminal functions, refer to the PDF manual, pages 10-11. Key terminals include 10V-GND (power supply for external devices), 24V-COM (power supply for digital input/output), AI1-GND, AI2-GND (analog inputs), AO1-GND, AO2-GND (analog outputs), X1-COM to X4-COM (digital inputs), HDI-COM (high-speed pulse input), A+ B- (RS485 communication), Y1-COM (collector open circuit output), HDO-COM (high-speed pulse output), and K1A-K1B-K1C, K2A-K2B-K2C (electric relay terminals).
Signal Input Terminal Wiring Instruction: Analog voltage signals are susceptible to external interference. Use shielded cables, keep cable lengths under 20m, and consider adding filter wave electric capacitors or iron-oxygen magnetism where signals are seriously disturbed.
3. Operating Instructions
3.1 Operation Display Interface
The VFD features a user-friendly interface for monitoring and control. The front panel includes a display area, speed control knob, and various keys for programming and operation.
3.2 Detachable Smart Panel
The VFD is equipped with a detachable smart panel for remote operation and control. An external extension network cable is required to connect the panel remotely, allowing for flexible adjustment of working conditions.
3.3 Key Panel Functions
| Key | Key Name | Key Function |
|---|---|---|
| PRG | Programming Key | Enter or withdraw from Level I menu. |
| ENTER | Confirm Key | Enter menu levels, confirm parameter settings. |
| ▲ | Increment Key | Increase data or function code. |
| ▼ | Decrement Key | Decrease data or function code. |
| ▶ | Shift Key | Select display parameters, select modify bit when modifying parameters. |
| RUN | Running Key | Used for running operation under keyboard control. |
| STOP/RES | Stop/Reset Key | Stop running operation, reset from failure alarm status. |
| MF.K | Multiply Functions Select Key | Select process function shift according to P7-01. |
3.4 Operation Demonstration Video
Watch this video for a demonstration of the inverter's panel test, positive and negative operation, removable panel functionality, and short circuit protection test.
4. Maintenance
4.1 General Care
To ensure the longevity and optimal performance of your VFD inverter, regular inspection and proper care are essential. Keep the unit clean and free from dust and debris.
4.2 Enhanced Durability Features
- Three Anti-Paint Process: The inverter utilizes a fully automatic double-sided coating equipment with imported polyurethane cool treatment. This process improves the stability of the inverter in harsh environments, protecting against moisture, dust, and corrosion.
- Efficient Heat Dissipation: Equipped with DC fans and an intelligent start/stop aluminum alloy radiator, the VFD achieves faster cooling speeds, ensuring stable operation even under heavy loads.
- Industrial-Grade Components: The internal components are designed for industrial use, featuring low-loss high-frequency transformers, overload protection, and wide voltage input functions. The independent bridge wall power supply scheme includes self-check for abnormal power supply functions.
- Reliable Welding Process: The circuit board uses SMT (Surface Mount Technology) with smooth and reliable thousand-column solder paste, ensuring the reliability and gloss of welding for long-term performance.
5. Troubleshooting
The VFD inverter is equipped with various warning and protection functions. When a fault occurs, the inverter will stop output, and the display panel will show a failure code. Refer to the table below for common faults and their solutions.
5.1 Common Failure Alarms and Policies
| Failure Name | Failure Code | Failure Reason | Treatment Policies |
|---|---|---|---|
| Inverter unit protection | Err1 | Output circuit short circuit, too long motor/converter wiring, overheat module, loose internal wiring, abnormal control/drive board, abnormal mutation module. | Solve outer failure, install reactor/filter, check air channel/fan, plug in wiring, seek technical support. |
| Accelerate over current | Err2 | Output circuit grounding/short circuit, incorrect control method/parameters, too short accelerate time, unsuitable V/F curve, lower voltage, starting rotating motor, sudden load during accelerating, smaller frequency converter model. | Solve outer failure, process motor parameter identification, increase accelerate time, adjust V/F curve/voltage, cancel sudden load, select bigger power grade converter. |
| Moderate over current | Err3 | Output circuit grounding/short circuit, incorrect control method/parameters, too short moderate time, lower voltage, sudden load during moderating, no brake unit/resistance. | Solve outer failure, process motor parameter identification, increase moderate time, adjust voltage, cancel sudden load, install brake unit/resistance. |
| Constant speed over current | Err4 | Output circuit grounding/short circuit, incorrect control method/parameters, lower voltage, sudden load during running, smaller frequency converter model. | Solve outer failure, process motor parameter identification, adjust voltage, cancel sudden load, select bigger power grade converter. |
| Input lack phase | Err12 | Abnormal three-phase input power supply, abnormal drive board, abnormal lightning protection board, abnormal main control board. | Check and solve existing problems in outer circuit, seek technical support. |
| Module overheat | Err14 | Too high environment temperature, air channel blocked, fan damaged, module thermal resistor damaged, inverter module damaged. | Reduce environment temperature, clean air channel, renew fan/resistor/module. |
For a complete list of fault codes and detailed troubleshooting steps, please refer to the full PDF user manual, Chapter 6, pages 68-73.
6. Specifications
6.1 Product Parameters
| Parameter | Value |
|---|---|
| Name | General purpose inverter |
| Power specifications | 0.75-45KW |
| Input Voltage | 220V/380V |
| Rated current | 1.5-320A |
| Input frequency | 50/60HZ |
| Protection level | IP20 |
| Temperature range | -20~+60°C |
| Cooling mode | Self-cooling fan |
| Use the motor | Suitable for fans and pumps |
| Product protection | 6 great protections |
| Scope of use | Woodworking machinery/food machinery/textile machinery/plastic machinery/CNC machine printing machinery/automation and other occasions requiring higher motor control |
6.2 800/900 Frequency Converter Series Index
The following tables detail the specifications for single-phase and three-phase power supply models within the SU-800/900 series.
Single Phase Power Supply: 220V, 50Hz/60Hz
| Frequency Converter Mode | Power Supply Capacity (KVA) | Rated Input Current (A) | Rated Output Current (A) | Adapted Motor | |
|---|---|---|---|---|---|
| kW | HP | ||||
| SU800-0R75G1 | 1.5 | 8.2 | 2.5 | 0.75 | 1 |
| SU800-1R5G1 | 3 | 14 | 4.1 | 1.5 | 2 |
| SU800-2R2G1 | 4 | 23 | 5.8 | 2.2 | 3 |
| SU800-4R0G1 | 5.5 | 31 | 9 | 4 | 4 |
| SU800-5R5G1 | 8.9 | 26 | 13 | 5.5 | 5 |
| SU800-7R5G1 | 21 | 35 | 17 | 7.5 | 10 |
Three Phase Power Supply: 380V, 50Hz/60Hz
| Frequency Converter Mode | Power Supply Capacity (KVA) | Rated Input Current (A) | Rated Output Current (A) | Adapted Motor | |
|---|---|---|---|---|---|
| kW | HP | ||||
| SU800-0R75G3 | 1.5 | 3.6 | 2.5 | 0.75 | 1 |
| SU800-1R5G3 | 3 | 5.1 | 4.1 | 1.5 | 2 |
| SU800-2R2G3 | 4 | 6 | 5.8 | 2.2 | 3 |
| SU800-4R0G3 | 6.1 | 10.5 | 9 | 4 | 5 |
| SU800-5R5G3 | 8.9 | 14 | 13 | 5.5 | 7.5 |
| SU800-7R5G3 | 11 | 21 | 17 | 7.5 | 10 |
| SU900-0R75G3 | 1.5 | 3.6 | 2.5 | 0.75 | 1 |
| SU900-1R5G3 | 3 | 5.1 | 4.1 | 1.5 | 2 |
| SU900-2R2G3 | 4 | 6 | 5.8 | 2.2 | 3 |
| SU900-4R0G3 | 6.1 | 10.5 | 9 | 4 | 5 |
| SU900-5R5G3 | 8.9 | 14.6 | 13 | 5.5 | 7.5 |
| SU900-7R5G3 | 11 | 21 | 17 | 7.5 | 10 |
| SU900-11R0G3 | 17 | 26 | 25 | 11 | 15 |
| SU900-15R0G3 | 21 | 35 | 32 | 15 | 20 |
| SU900-18R5G3 | 24 | 38.5 | 37 | 18.5 | 25 |
| SU900-22R0G3 | 30 | 46.5 | 45 | 22 | 30 |
| SU900-30R0G3 | 40 | 62 | 60 | 30 | 40 |
| SU900-37R0G3 | 57 | 76 | 75 | 37 | 50 |
| SU900-45R0G3 | 69 | 92 | 91 | 45 | 60 |
6.3 Certifications
The SUSWE VFD inverter is certified to meet international quality and safety standards, including CE, FC, and RoHS.
7. Warranty and Support
7.1 Warranty Description
The frequency converter itself is covered by an 18-month warranty from the date of manufacture (subject to the bar code on the appearance) under normal use conditions. If failure or damage occurs within this period, the manufacturer will be responsible for the warranty.
A reasonable maintenance fee will be charged for issues occurring after 18 months or under the following conditions:
- Damage caused by the user's failure to comply with the provisions of this manual.
- Damage caused by external factors such as fire, flood, or abnormal voltage.
- Damage caused by applying frequency converters to abnormal functions.
Relevant service costs will be calculated according to the manufacturer's standard rates. If a contract exists, it will be handled according to the principle of contract priority.
7.2 Additional Support
For detailed parameter settings, advanced configurations, and comprehensive communication protocols, please refer to the complete user manual available as a PDF: SUSWE SU-800/900 Series VFD User Manual (PDF).
8. User Tips
- Motor Compatibility: When selecting a VFD, ensure its power rating (kW) and voltage (e.g., 220VCA or 380VCA) match your motor's specifications. For specialized applications like motors submerged in a well, verify the VFD's environmental ratings (e.g., IP rating) and ensure it can handle the specific load characteristics.
- Braking Resistor: For applications requiring rapid deceleration or handling high inertia loads, a braking resistor may be necessary. Consult the wiring diagrams and specifications for your specific VFD model (e.g., 18KW 380V input/output) to determine if a braking resistor is required and how to connect it to the P+ and PB terminals.
- Documentation: Always keep the user manual handy. For detailed parameter settings, wiring diagrams, and troubleshooting, refer to the comprehensive PDF manual.