1. Introduction
This manual provides essential information for the safe and efficient operation of your SPORTARC Single-Phase to Three-Phase Inverter. This device is designed to convert a 220V single-phase input into a 220V three-phase output, making it suitable for various three-phase motors in industrial applications. It features a power rating of 750W/1100W and a frequency range of 1.0 to 99 Hz, ensuring reliable performance.
Key features include multiple safety protections against overvoltage, short-circuits, and overcurrent, an intuitive digital display for monitoring and control, and flexible voltage management (80-280V input) for adaptability in diverse electrical environments.
2. Safety Information
WARNING: Improper installation or operation can lead to serious injury or equipment damage. Read all instructions carefully before use.
- Ensure all wiring is performed by a qualified electrician in accordance with local and national electrical codes.
- Always disconnect power before performing any installation, wiring, or maintenance.
- Verify that the input voltage matches the inverter's specifications (220V single-phase).
- Ensure proper grounding of the inverter and the connected motor.
- Do not operate the inverter in wet or humid conditions, or in environments with flammable gases or liquids.
- Avoid touching internal components when the inverter is powered on or recently powered off, as residual voltage may be present.
- Do not exceed the rated power capacity of the inverter (750W/1100W).
- Keep children and unauthorized personnel away from the operating inverter.
3. Setup and Installation
3.1 Physical Installation
Mount the inverter in a well-ventilated area, away from direct sunlight, excessive dust, moisture, and corrosive substances. Ensure sufficient clearance around the unit for proper heat dissipation, especially around the cooling fan.

Figure 3.1: Side view of the inverter, highlighting cooling vents and fan for proper heat dissipation.
3.2 Wiring Connections
Refer to the wiring diagram below for correct electrical connections. Ensure all connections are secure and properly insulated.

Figure 3.2: Wiring diagram for the inverter. Connect AC 220V input to L and N terminals. Connect the motor to U, V, W output terminals. Ensure the ground connection (FG) is properly established.
- Input (AC 220V): Connect the single-phase 220V power supply to the 'L' and 'N' terminals.
- Output (U, V, W): Connect the three-phase motor to the 'U', 'V', and 'W' terminals.
- Ground (FG): Connect the ground wire to the 'FG' terminal for safety.
- Remote Control (Optional): If using a remote control, connect it to the designated terminals (RS+, RS-, GND, VI, +5V, COM, X1-X4) as per the diagram.

Figure 3.3: The inverter unit shown alongside its remote control.
4. Operating Instructions
4.1 Control Panel Overview
The inverter features an intuitive digital display and control buttons for easy operation and parameter adjustment.

Figure 4.1: Front panel of the inverter, showing the digital display, control buttons (P-K/SHIFT, MENU/ESC, SAVE/LOCK, FWD/REV, RUN/STOP, Up/Down arrows), and speed control knob.
- Digital Display: Shows operational status, frequency, and parameter values.
- P-K/SHIFT: Used for parameter selection and shifting digits during value input.
- MENU/ESC: Enters/exits the menu and cancels current operation.
- SAVE/LOCK: Saves parameter settings and locks/unlocks the keypad.
- FWD/REV: Changes the motor rotation direction (Forward/Reverse).
- RUN/STOP: Starts and stops the motor.
- Up/Down Arrows: Adjusts frequency or parameter values.
- Speed Control Knob: Provides analog control for motor speed adjustment.

Figure 4.2: Control panel features, emphasizing programmable motor speed control, efficient MPU, and built-in safety protections.
4.2 Basic Operation
- Power On: After ensuring all connections are correct and secure, apply single-phase 220V power to the inverter. The digital display will illuminate.
- Set Frequency/Speed: Use the Up/Down arrow buttons or the speed control knob to set the desired operating frequency for the motor. The display will show the current frequency.
- Start Motor: Press the RUN button to start the motor. The motor will accelerate to the set frequency.
- Change Direction: Press the FWD/REV button to toggle the motor's rotation direction.
- Stop Motor: Press the STOP button to stop the motor. The motor will decelerate and come to a halt.
- Parameter Adjustment: To access and modify advanced parameters, press the MENU/ESC button. Use P-K/SHIFT and Up/Down arrows to navigate and adjust values. Press SAVE/LOCK to save changes.
5. Maintenance
Regular maintenance ensures the longevity and reliable operation of your inverter.
- Cleaning: Periodically clean the exterior of the inverter with a soft, dry cloth. Ensure cooling vents are free from dust and debris to prevent overheating. Do not use liquid cleaners.
- Inspection: Regularly inspect all wiring connections for tightness and signs of wear or damage. Check for any unusual noises or odors during operation.
- Environment: Maintain a clean, dry, and well-ventilated operating environment.
- Power Cycle: If the inverter is not in use for an extended period, disconnect it from the power supply.
6. Troubleshooting
This section provides solutions to common issues. For problems not listed here, contact qualified service personnel.
| Problem | Possible Cause | Solution |
|---|---|---|
| Inverter does not power on. | No input power; loose connections; internal fault. | Check power supply; verify all wiring connections; contact support if power is present but unit remains off. |
| Motor does not start. | Incorrect wiring; motor fault; inverter in fault state; frequency set to 0. | Verify motor wiring (U, V, W); check motor for issues; clear any inverter fault codes; ensure frequency is set above 0. |
| Motor runs erratically or at incorrect speed. | Incorrect parameter settings; unstable input voltage; motor overload. | Review and adjust frequency/speed parameters; check input voltage stability; reduce motor load. |
| Overcurrent/Overload error. | Motor overload; short circuit in motor or wiring; incorrect motor parameters. | Reduce motor load; inspect motor and wiring for short circuits; verify motor parameters in inverter settings. |
| Overvoltage/Undervoltage error. | Input voltage outside specified range (80-280V). | Check and stabilize the input power supply voltage. |
7. Specifications
Technical specifications for the SPORTARC Single-Phase to Three-Phase Inverter.
| Feature | Specification |
|---|---|
| Brand | SPORTARC |
| Model Name | UX-52-100-750W |
| Model Number | AOIUOP7K46XL3448N82F |
| Input Voltage | Single-phase 220V AC (Range: 80-280V) |
| Output Voltage | Three-phase 220V AC |
| Rated Power | 750W / 1100W |
| Output Peak Power | 1200W |
| Frequency Range | 1.0 - 99 Hz |
| Dimensions (L x W x H) | 14.7 cm x 14.7 cm x 10.2 cm |
| Weight | 400 Grams |
| Material | ABS |
| Recommended Use | Industrial Applications |





