1. Introduzione
This manual provides essential information for the safe and efficient operation of your Tbest AT2-1500X Variable Frequency Drive (VFD) speed controller. Please read this manual thoroughly before installation, operation, or maintenance to ensure proper use and prevent potential hazards.
The Tbest AT2-1500X VFD is designed for controlling the speed of single-phase AC motors up to 1.5 kW. It features a unique control method for high torque, precision, and a wide speed regulation range. Its robust design offers good anti-trip performance and adaptability to various environmental conditions, including power fluctuations, temperature, humidity, and dust interference. The VFD incorporates optimized PWM control technology and electromagnetic compatibility for low noise and reduced electromagnetic interference.
2. Precauzioni di sicurezza
AVVERTIMENTO: Failure to follow these safety instructions may result in death, severe injury, or serious damage to the inverter.
- Always ensure the power supply is disconnected before performing any wiring or maintenance on the VFD.
- Do not touch the VFD terminals when power is applied, as this can cause severe damage to the inverter.
- Do not install the VFD in environments with flammable materials to avoid fire hazards.
- Il terminale di terra dell'inverter deve essere collegato a terra in modo corretto e sicuro.
- Avoid installing the VFD in environments with explosive gases to prevent explosion hazards.
- Only qualified personnel should perform internal inspections or repairs of the VFD. Incorrect procedures can lead to damage or injury.

Figura 1: Fronte view of the VFD showing the control panel and safety warning label.
3. Caratteristiche del prodotto
- Alte prestazioni: Utilizes a unique control method to achieve high torque, high precision, and a wide speed regulation range.
- Stabilità migliorata: Features good anti-trip performance and adaptability to power fluctuations, temperature, humidity, and dust interference.
- Low Noise & EMI: Optimized PWM control technology and electromagnetic compatibility minimize operational noise and electromagnetic interference.
- User-Friendly Wiring: Easy to use and connect with screw terminals for convenient wiring.
- Dissipazione efficiente del calore: Designed with a large heat sink to ensure effective heat dissipation and prolonged operational life.
4. Specifiche
| Parametro | Valore |
|---|---|
| Modello | Modello AT2-1500X |
| Campo di applicazione | Universale |
| Fase di potenza | Monofase |
| Corrente nominale | 8 A |
| Volume nominaletage | AC 220 V (Single Phase) |
| Volume di fornituratage | Basso volumetage |
| Potenza motore adatta | 1.5 kW |
| Filtro | Nessuno |
| DC Power Source Type | Tipo di corrente |
| Metodo di controllo | V/F Open-Loop Control |
| Uscita regolabile Voltage Metodo | Controllo PWM |
| Dimensioni (circa) | Dimensioni: 12.5 x 12.5 x 18 cm |
| Numero di riferimento del prodotto | Tbesth8d7koib43 |

Figura 2: Posteriore view of the VFD, highlighting cooling and terminal access.

Figura 3: In basso view of the VFD, illustrating the heat sink design for efficient cooling.
5. Configurazione e installazione
Proper installation is crucial for the safe and reliable operation of the VFD. Ensure all safety precautions are followed before proceeding.
5.1 Montaggio
- Mount the VFD in a clean, dry, and well-ventilated area, away from direct sunlight, excessive heat, moisture, and dust.
- Ensure sufficient clearance around the VFD for proper airflow, especially around the heat sink and cooling fans.
- Avoid mounting on flammable surfaces.
5.2 Cablaggio
All wiring must be performed by a qualified electrician and in accordance with local electrical codes.
- Potenza assorbita (L, N): Connect the single-phase AC 220V power supply to the 'L' and 'N' terminals.
- Uscita motore (U, V, W): Connect the single-phase AC motor to the 'U', 'V', and 'W' terminals. For single-phase motors, typically two of these terminals are used, or specific wiring instructions for your motor should be followed.
- Terra (GND): Connect the ground terminal to a reliable earth ground. This is critical for safety.
- Terminali di controllo: The VFD includes additional control terminals for external control signals (e.g., start/stop, speed reference). Refer to the detailed wiring diagram for specific connections.

Figura 4: dettagliata view of the VFD's screw terminals for electrical connections.

Figura 5: Oltreview of the VFD with a focus on the control panel and wiring interface.
6. Istruzioni per l'uso
Il VFD è dotato di un pannello di controllo intuitivo per un facile utilizzo.

Figure 6: Control panel of the Tbest AT2-1500X VFD.
6.1 Pannello di controllo Sopraview
- Display: Mostra parametri operativi quali frequenza, corrente, volumetagee velocità.
- Pulsante DISP: Cycles through different display parameters.
- Pulsanti FWD/REV: Controlla la direzione avanti e indietro del motore.
- Pulsante PROG: Enters programming mode to adjust VFD parameters.
- Pulsante FUNC/DATA: Used to select functions or confirm data entry in programming mode.
- Pulsanti freccia su/giù: Adjusts parameter values or navigates through menus.
- Manopola rotante: Provides fine adjustment for speed or parameter values.
- Pulsante RUN (verde): Avvia il motore.
- Pulsante STOP/RESET (rosso): Arresta il motore o ripristina le condizioni di guasto.
6.2 Funzionamento di base
- Accensione: Ensure all wiring is correct and secure, then apply power to the VFD. The display will illuminate.
- Imposta frequenza/velocità: Use the Up/Down arrow buttons or the rotary knob to set the desired output frequency (and thus motor speed). The display will show the current frequency.
- Avviamento del motore: Premere il tasto CORRERE button to start the motor. The VFD will accelerate the motor to the set frequency.
- Cambia direzione: If configured, use the AV/REV buttons to change the motor's rotation direction.
- Arresto motore: Premere il tasto ARRESTO/RIPRISTINO button to stop the motor. The VFD will decelerate the motor to a stop.
- Regolazione dei parametri: For advanced settings, press the PROG button to enter programming mode. Use the arrow buttons and FUNZ/DATI button to navigate and modify parameters. Refer to the full programming manual (if available) for detailed parameter descriptions.
7. Manutenzione
Una manutenzione regolare garantisce la longevità e le prestazioni ottimali del vostro VFD.
- Pulizia: Periodically clean the VFD's exterior, especially the ventilation openings and heat sink fins, to prevent dust accumulation. Use a soft, dry cloth. Do not use liquid cleaners.
- Ispezione della ventola: Check the cooling fans for proper operation and ensure they are free from obstructions. Replace noisy or malfunctioning fans.
- Controllo del terminale: Annually, inspect all wiring terminals for tightness and signs of corrosion or overheating. Retighten connections as necessary (ensure power is off).
- Condizioni ambientali: Assicurarsi che l'ambiente operativo rimanga entro gli intervalli di temperatura e umidità specificati.
8. Risoluzione Dei Problemi
Questa sezione fornisce indicazioni generali per i problemi più comuni. Per problemi più complessi, contattare l'assistenza tecnica.
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il motore non si avvia | No power, incorrect wiring, STOP/RESET button pressed, parameter error. | Check power supply. Verify wiring connections. Press RUN. Check VFD parameters. |
| Il motore gira a velocità errata | Incorrect frequency setting, motor parameters not matched. | Adjust frequency using rotary knob/arrow buttons. Verify motor parameters in VFD settings. |
| VFD displays an error code | Sovracorrente, overvoltage, sottovoltage, overheat, motor overload. | Note the error code. Press STOP/RESET. Consult the full VFD manual for specific error code meanings and solutions. Check motor load and power supply. |
| Rumore o vibrazioni eccessivi | Motor imbalance, mechanical issue, VFD parameter mismatch. | Inspect motor and mechanical connections. Review VFD motor parameters. |
9. Garanzia e supporto
Specific warranty information for the Tbest AT2-1500X VFD is not provided in this manual. For details regarding warranty coverage, technical support, or service, please contact your retailer or the manufacturer directly. Ensure you have your product model number (AT2-1500X) and any purchase documentation available when seeking support.