1. Johdanto
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. Tuotteen ominaisuudet
- 20A aurinkolataussäädin: Automatically detects 12V or 24V PV systems.
- Akun yhteensopivuus: Works with Sealed, and Flooded lead-acid batteries.
- Optimoitu lataus: Features an optimized 3-stage battery charging system to regulate electricity flow and prolong battery lifespan.
- Accurate LCD Display: Large digital LCD display clearly indicates working conditions and accurate operating data for real-time PV system monitoring.
- Kattava suojaus: Provides reverse polarity protection, block reverse current at night, short circuit, overcharge, over-discharge, and overload protection for solar panel and battery.
- Helppo asennus: Designed with corresponding icons on each connector for quick setup.
- USB-A-portti: Includes a USB-A port for charging mobile devices or powering small loads.
- Useita sovelluksia: Suitable for RVs, cabins, workshops, garages, and other off-grid lighting or power needs.
3. Tuote ohiview
Familiarize yourself with the components of your HQST Solar Charge Controller.
Kuva 3.1: Edessä 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.
Kuva 3.2: Yksityiskohtainen 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. Tekniset tiedot
| Ominaisuus | Erittely |
|---|---|
| Malli | 20A PWM |
| System Voltage | 12 V / 24 V automaattinen |
| Suurin latausvirta | 20A |
| Akkutyypin yhteensopivuus | Sealed, Flooded Lead-Acid Batteries |
| Näytön tyyppi | LCD |
| USB-lähtö | 5V/1A (USB-A Port) |
| Tuotteen mitat | 5.12 x 1.38 x 2.95 tuumaa (13 x 3.5 x 7.5 cm) |
| Tuotteen paino | 4.9 unssia (0.14 kg) |
| Valmistaja | HQST |
| UPC | 791810331544, 810081407366 |
Kuva 4.1: Physical dimensions of the HQST Solar Charge Controller, showing length (6.45 in), width (4.07 in), and height (1.85 in).
Kuva 4.2: Illustration of battery types compatible with the HQST Solar Charge Controller, including Sealed, Gel, Flooded, and Lead-Acid batteries.
5. Turvallisuusohjeet
- Ensure all connections are tight and secure to prevent loose connections that can cause excessive heat.
- Kytke aina ensin akku lataussäätimeen, sitten aurinkopaneeli ja lopuksi kuorma. Irrota päinvastaisessa järjestyksessä.
- Do not connect an inverter directly to the load terminals of the charge controller. Connect inverters directly to the battery.
- Asenna ohjain hyvin ilmastoituun tilaan, suojassa suoralta auringonvalolta, korkeilta lämpötiloilta ja kosteudelta.
- Varmista, että järjestelmä voltage (12V or 24V) matches the battery bank voltage. The controller automatically detects this.
- Use appropriate wire gauges for all connections to prevent voltage pudotus ja ylikuumeneminen.
- Käytä silmäsuojaimia työskennellessäsi akkujen kanssa.
6. Asennus (asetus)
Follow these steps for proper installation of your solar charge controller.
- Asennus: 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.
- Liitä akku: 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.
- Liitä aurinkopaneeli: 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.
- Kytke kuorma: 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.
Tärkeä kytkentäjärjestys: 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.
Kuva 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.
Kuva 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. Käyttö
Once installed, the controller operates automatically. The LCD display provides real-time information about your system.
7.1 LCD-näyttö ja painikkeiden toiminnot
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).
- Lyhyt painallus: Cycles through display parameters.
- Pitkä painallus (noin 5 sekuntia): Enters or exits setting mode for load control.
7.2 Kuorman hallinta
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.
Kuva 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. Huolto
Säännöllinen huolto varmistaa aurinkolataussäätimesi optimaalisen suorituskyvyn ja pitkän käyttöiän.
- Tarkista liitännät: Periodically check all wiring connections for tightness and corrosion. Loose connections can lead to power loss and overheating.
- Puhdista ohjain: Pidä ohjain puhtaana pölystä ja roskista. Käytä puhdistukseen kuivaa liinaa. Älä käytä nesteitä.
- Monitorin suorituskyky: Regularly check the LCD display for normal operation and expected readings. Note any unusual behavior.
- Akun kunto: Ensure your batteries are properly maintained according to their manufacturer's guidelines.
9. Vianmääritys
Tässä osiossa käsitellään yleisiä ongelmia, joita saatat kohdata aurinkolataussäätimen kanssa.
| Ongelma | Mahdollinen syy | Ratkaisu |
|---|---|---|
| Ohjain ei käynnisty / LCD-näyttö tyhjä | Akkua ei ole kytketty tai sen napaisuus on väärin päin; akun varaustilatage liian alhainen. | Tarkista akun liitännät ja napaisuus. Varmista akun jännite.tage on yli vähimmäiskäyttötilavuudentage (yleensä 8V). |
| Akku ei lataudu | Solar panel not connected or reverse polarity; insufficient sunlight; damaged solar panel or wiring. | Check solar panel connections and polarity. Ensure adequate sunlight. Inspect solar panel and wiring for damage. |
| Kuorma ei toimi | 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. |
| LCD-näytön virhekoodit | 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. Takuu ja tuki
For warranty information or technical support, please refer to the official HQST websivustolta tai ota yhteyttä suoraan heidän asiakaspalveluunsa. Säilytä ostokuitti takuuvaatimuksia varten.
HQST is committed to providing high-quality solar products and responsive customer service.
