1. Inngangur
The HQST 20 Amp MPPT Solar Charge Controller is designed to efficiently manage power flow from your solar panels to your battery bank. Utilizing advanced Maximum Power Point Tracking (MPPT) technology, it ensures high tracking efficiency and peak conversion efficiency, maximizing the energy harvest from your solar array. This controller automatically detects 12V or 24V DC system voltages and is compatible with various battery types, including sealed, vented, colloidal, and lithium batteries.
It incorporates multiple electronic protections to safeguard your system against common faults, ensuring reliable and safe operation. The compact design and efficient heat dissipation further enhance its performance and longevity.
2. Öryggisupplýsingar
Vinsamlegast lesið allar leiðbeiningar og viðvaranir vandlega fyrir uppsetningu og notkun. Ef þessum leiðbeiningum er ekki fylgt getur það valdið raflosti, eldsvoða eða alvarlegum meiðslum.
- Tengdu alltaf rafhlöðuna fyrst við hleðslustýringuna, síðan sólarselluna og að lokum við álagið. Aftengdu í öfugri röð.
- Ensure all wiring is correctly polarized and securely connected to prevent short circuits.
- Notið viðeigandi rofa eða öryggi fyrir allar tengingar.
- Do not disassemble or attempt to repair the controller. Refer to qualified service personnel.
- Setjið stjórntækið upp á vel loftræstum stað, fjarri eldfimum efnum og beinu sólarljósi.
- Wear appropriate personal protective equipment (PPE) when working with batteries and electrical systems.

Figure 2.1: The controller offers comprehensive protection against various electrical faults.
3. Vöru lokiðview
The HQST 20 Amp MPPT Solar Charge Controller is a robust device designed for optimal solar power management. Key features include:
- Mikil viðskiptahagkvæmni: Allt að 99.9% rakningarnýtni og 98% hámarks umbreytingarnýtni.
- Sjálfvirk Voltage Uppgötvun: Auto-detects 12V or 24V DC system voltages.
- Marg-stage Hleðsla: Eiginleikar 5-stage charging (quick, holding, boost, float, and equalization) for optimal battery health.
- Samhæfni rafhlöðu: Supports sealed, vented, colloidal, and lithium batteries. User mode allows custom charging parameters.
- Ítarleg vernd: Includes overcharging, over current, overload, overheat, short circuit, reverse current, and reverse polarity protection.
- Skilvirk hitaleiðni: Die-cast aluminum heat sink minimizes power loss from heat.
- LCD skjár: Provides real-time system operating information and error codes.

Figure 3.1: HQST 20 Amp MPPT Solar Charge Controller with Remote Meter.

Figure 3.2: Comprehensive functional design with labeled components.
4. Uppsetning
Follow these steps for proper installation of your HQST MPPT Solar Charge Controller:
- Uppsetning: Choose a dry, well-ventilated location away from direct sunlight and heat sources. Ensure adequate space around the controller for air circulation. The controller dimensions are approximately 5.91" x 2.42" x 4.16" (L x W x H).
- Rafhlöðutenging: Connect the battery cables to the battery terminals on the charge controller. Ensure correct polarity (positive to positive, negative to negative). This connection must be made first.
- Tenging sólarplötu: Connect the solar panel cables to the solar panel terminals on the charge controller. Ensure correct polarity.
- Tenging við álag (valfrjálst): If using a DC load directly from the controller, connect the load cables to the load terminals. Ensure correct polarity.
- Hitaskynjari (valfrjálst): Connect the external temperature sensor to the designated interface. This allows for temperature compensation of battery charging voltage.
- Remote Meter (Optional): Connect the remote meter (RM-6) to the communication interface for external display and control.

Figure 4.1: Typical wiring diagram for the solar charge controller system.
Note: The solar panel, battery, adapter kit, tray cables, DC load, and power inverter are not included with the charge controller.
5. Rekstur
Þegar stjórntækið er sett upp mun það sjálfkrafa greina kerfismagniðtage (12V or 24V). The LCD display provides real-time information about your system's performance.
5.1. Val á rafhlöðutegund
The controller is compatible with various battery types. To select or customize the battery type:
- Access the settings menu via the operation keys on the controller or the remote meter.
- Navigate to the battery type setting.
- Select from pre-set options (Sealed, Vented, Colloidal, Lithium) or enter 'User' mode to set custom charging parameters.

Figure 5.1: Compatible battery types for the charge controller.
5.2. Hleðsla Stages
Stýringin notar 5-stage charging algorithm to optimize battery life and performance:
- Hraðhleðsla: Initial bulk charging phase.
- Holding Charge: Absorption phase, maintaining a constant voltage.
- Uppörvunargjald: Raises voltage to ensure full charge.
- Flotagjald: Maintains battery at a full state of charge.
- Equalization (for lead-acid batteries only): Ofhleður reglulega til að jafna rafhlöðumagntages.

Mynd 5.2: Myndskreyting á 4-stage hleðsluferli.
6. Viðhald
Reglulegt viðhald tryggir langlífi og bestu mögulegu afköst sólarhleðslustýringarinnar.
- Hreinlæti: Haltu stjórntækinu hreinu og lausu við ryk og óhreinindi. Notaðu þurran klút til að þrífa.
- Tengingar: Athugið reglulega hvort allar raflagnir séu þéttar eða tærðar. Lausar tengingar geta valdið ofhitnun og lélegri virkni.
- Loftræsting: Gakktu úr skugga um að loftræstiop séu ekki stífluð til að tryggja rétta varmaleiðni.
- Rafhlaða skoðun: Regularly inspect your batteries for any signs of damage, swelling, or leakage. Follow battery manufacturer's maintenance guidelines.
7. Bilanagreining
This section addresses common issues you might encounter with your HQST MPPT Solar Charge Controller.
| Vandamál | Möguleg orsök | Lausn |
|---|---|---|
| Engin birting/Slökkt | Rafhlaða ekki tengd eða lágt hljóðstyrkurtage; Öfug pólun. | Athugaðu rafhlöðutengingar og voltage. Gætið þess að pólunin sé rétt. Hladdu rafhlöðuna ef hún er orðin of há.tage er of lágt. |
| Engin hleðsla frá sólarsellu | Solar panel not connected; Insufficient sunlight; Solar panel fault; Reverse polarity. | Athugið tengingar og pólun sólarsella. Tryggið nægilegt sólarljós. Prófið afköst sólarsella. |
| Rafhlaða ekki fullhlaðin | Incorrect battery type setting; Insufficient solar input; Battery degradation. | Verify battery type setting. Increase solar panel capacity or improve sun exposure. Consider battery replacement. |
| Overcharge/Over-discharge protection active | Rafhlaða voltage outside safe limits. | The controller's protection features are working. Check battery health and system load. |
| Villukóði til sýnis | Sérstök kerfisbilun. | Refer to the detailed error code list in the full user manual (PDF) for specific troubleshooting steps. |
8. Tæknilýsing
| Eiginleiki | Smáatriði |
|---|---|
| Vörumerki | HQST |
| Fyrirmynd | 20 Amp MPPT sólhleðslustýri |
| UPC | 810009714170 |
| Vörumál | 5.91 x 2.42 x 4.16 tommur |
| Þyngd hlutar | 1.63 pund |
| Voltage | 12V/24V (Auto-detect) |
| Efni | Ál |
| Skjár Tegund | LCD |
| Skilvirkni mælinga | Allt að 99.9% |
| Skilvirkni viðskipta | Peak 98% |
9. Ábyrgð og stuðningur
The HQST 20 Amp MPPT Solar Charge Controller typically comes with a 3-year warranty from the manufacturer, covering defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
For technical support, warranty service, or further inquiries, please contact HQST customer service through their official website or the retailer where the product was purchased. Provide your product model number and a detailed description of the issue for faster assistance.
For the most detailed information, including specific error codes and advanced settings, please refer to the official User Manual PDF available for download from the HQST websíðu eða skráningarsíðu vörunnar á Amazon.





