1. Pengenalan
This manual provides detailed instructions for the installation, operation, and maintenance of your HQST 20A PWM Solar Charge Controller. This device is designed to manage the power flow from your solar panel to your battery, ensuring efficient charging and protecting your battery from overcharge and over-discharge. It is compatible with 12V and 24V PV systems and various lead-acid battery types.
2. Ciri-ciri Produk
- Pengawal Cas Suria 20A: Automatically detects 12V or 24V PV systems.
- Keserasian Bateri: Works with Sealed, and Flooded lead-acid batteries.
- Pengecasan Dioptimumkan: Features an optimized 3-stage battery charging system to regulate electricity flow and prolong battery lifespan.
- Paparan LCD yang tepat: Large digital LCD display clearly indicates working conditions and accurate operating data for real-time PV system monitoring.
- Perlindungan Komprehensif: Provides reverse polarity protection, block reverse current at night, short circuit, overcharge, over-discharge, and overload protection for solar panel and battery.
- Pemasangan Mudah: Designed with corresponding icons on each connector for quick setup.
- Port USB-A: Includes a USB-A port for charging mobile devices or powering small loads.
- Pelbagai Aplikasi: Suitable for RVs, cabins, workshops, garages, and other off-grid lighting or power needs.
3. Produk Lebihview
Familiarize yourself with the components of your HQST Solar Charge Controller.
Rajah 3.1: Depan view of the HQST Solar Charge Controller with key components labeled, including mounting holes, LCD screen, control keys, solar panel terminals, battery terminals, load terminals, and USB port.
Rajah 3.2: Terperinci view of the LCD display, showing indicators for PV (solar panel), BAT (battery), LOAD, parameter digits, and units (kWh, %, V, °C). It also illustrates the power flow from solar panel to battery to load.
4. Spesifikasi
| Ciri | Spesifikasi |
|---|---|
| Model | 20A PWM |
| Sistem Voltage | 12V / 24V Auto |
| Arus Caj Maks | 20A |
| Keserasian Jenis Bateri | Sealed, Flooded Lead-Acid Batteries |
| Jenis Paparan | LCD |
| Output USB | 5V/1A (USB-A Port) |
| Dimensi Produk | 5.12 x 1.38 x 2.95 inci (13 x 3.5 x 7.5 cm) |
| Berat Barang | 4.9 auns (0.14 kg) |
| Pengeluar | HQST |
| UPC | 791810331544, 810081407366 |
Rajah 4.1: Physical dimensions of the HQST Solar Charge Controller, showing length (6.45 in), width (4.07 in), and height (1.85 in).
Rajah 4.2: Illustration of battery types compatible with the HQST Solar Charge Controller, including Sealed, Gel, Flooded, and Lead-Acid batteries.
5. Arahan Keselamatan
- Ensure all connections are tight and secure to prevent loose connections that can cause excessive heat.
- Sentiasa sambungkan bateri kepada pengawal cas dahulu, kemudian panel solar, dan akhirnya beban. Putuskan sambungan dalam susunan terbalik.
- Do not connect an inverter directly to the load terminals of the charge controller. Connect inverters directly to the battery.
- Pasang pengawal di kawasan yang mempunyai pengudaraan yang baik, jauh daripada cahaya matahari langsung, suhu tinggi dan kelembapan.
- Pastikan sistem voltage (12V or 24V) matches the battery bank voltage. The controller automatically detects this.
- Use appropriate wire gauges for all connections to prevent voltage jatuh dan terlalu panas.
- Pakai pelindung mata apabila bekerja dengan bateri.
6. Pemasangan (Persediaan)
Follow these steps for proper installation of your solar charge controller.
- Pemasangan: Choose a dry, well-ventilated location for mounting the controller. Ensure there is sufficient space around the controller for heat dissipation. Use the mounting holes provided on the unit.
- Sambungkan Bateri: Connect the battery to the battery terminals on the charge controller. Ensure correct polarity (+ to + and - to -). The LCD display should illuminate, indicating the controller has detected the battery voltage.
- Sambungkan Panel Suria: Connect the solar panel to the solar panel terminals on the charge controller. Ensure correct polarity. The controller will begin charging the battery if sunlight is available.
- Sambungkan Beban: Connect your DC loads (e.g., lights, fans) to the load terminals. Ensure correct polarity. The USB-A port can also be used for charging compatible devices.
Pesanan Sambungan Penting: Always connect the battery first, then the solar panel, and finally the load. Disconnect in the reverse order: load first, then solar panel, then battery.
Rajah 6.1: A typical wiring diagram showing the connection of a 12V solar panel, the HQST PWM charge controller, a 12V deep cycle battery, and a 12V power inverter. Note the recommended fuse placement and wire gauges.
Rajah 6.2: Visual step-by-step guide for connecting the HQST Solar Charge Controller: 1. Connect the battery. 2. Connect the solar panel. 3. Connect the load (light bulb). This sequence ensures safe and proper system setup.
7. Operasi
Once installed, the controller operates automatically. The LCD display provides real-time information about your system.
7.1 LCD Display and Button Functions
The LCD cycles through various parameters such as battery voltage, charging current, load current, and temperature. The single red button is used to manually cycle through display modes or to enter settings for load control (e.g., timer settings for lights).
- Akhbar Ringkas: Cycles through display parameters.
- Long Press (approx. 5 seconds): Enters or exits setting mode for load control.
7.2 Kawalan Beban
The controller offers programmable load control. You can set the load to turn on/off based on daylight or a timer. Refer to the specific settings menu on the LCD for detailed configuration. The USB-A port is typically powered when the load output is active.
Rajah 7.1: The HQST Solar Charge Controller featuring a USB-A port, which can be used to charge mobile devices or power small USB-compatible electronics.
8. Penyelenggaraan
Penyelenggaraan berkala memastikan prestasi optimum dan jangka hayat pengawal cas solar anda.
- Periksa Sambungan: Periodically check all wiring connections for tightness and corrosion. Loose connections can lead to power loss and overheating.
- Bersihkan Pengawal: Keep the controller clean and free from dust and debris. Use a dry cloth for cleaning. Do not use liquids.
- Pantau Prestasi: Regularly check the LCD display for normal operation and expected readings. Note any unusual behavior.
- Kesihatan Bateri: Ensure your batteries are properly maintained according to their manufacturer's guidelines.
9. Penyelesaian masalah
Bahagian ini membincangkan isu biasa yang mungkin anda hadapi dengan pengawal cas solar anda.
| Masalah | Kemungkinan Punca | Penyelesaian |
|---|---|---|
| Controller not powering on / LCD blank | Bateri tidak disambungkan atau kekutuban terbalik; volum bateritage terlalu rendah. | Periksa sambungan dan kekutuban bateri. Pastikan volum bateritage adalah melebihi volum operasi minimumtage (biasanya 8V). |
| Bateri tidak dicas | Panel solar tidak disambungkan atau kekutuban terbalik; cahaya matahari tidak mencukupi; panel atau pendawaian solar yang rosak. | Periksa sambungan dan kekutuban panel solar. Pastikan cahaya matahari yang mencukupi. Periksa panel solar dan pendawaian untuk kerosakan. |
| Beban tidak berfungsi | Load not connected or reverse polarity; load current exceeds controller rating; battery voltage too low; load control setting. | Check load connections and polarity. Ensure load current is within 20A. Check battery voltage. Adjust load control settings if a timer or light sensor mode is active. |
| Error codes on LCD | Specific system fault (e.g., overcharge, over-discharge, short circuit). | Refer to the controller's internal error code list (if available in a more detailed manual) or contact HQST support. Address the underlying issue (e.g., reduce load, check battery). |
10. Waranti dan Sokongan
For warranty information or technical support, please refer to the official HQST webtapak atau hubungi perkhidmatan pelanggan mereka secara langsung. Simpan resit pembelian anda untuk tuntutan waranti.
HQST is committed to providing high-quality solar products and responsive customer service.
