1. はじめに
The HQST 20A PWM Flush Mount Solar Charge Controller is designed to efficiently manage power flow from your solar panels to your battery bank, ensuring optimal charging and protection. It is compatible with both 12V and 24V battery systems, supporting various battery types including Lithium, Sealed (AGM), Gel, and Flooded batteries. This manual provides essential information for proper installation, operation, and maintenance of your solar charge controller.
2.製品オーバーview
Familiarize yourself with the components of your HQST solar charge controller:
This diagram illustrates the key components and dimensions of the HQST 20A PWM Flush Mount Solar Charge Controller. It measures approximately 5.11 inches in length and 3.54 inches in width.
- 5V 1A USB Port: For charging USB-compatible devices.
- 上下ボタン: Used for navigating display screens and adjusting settings.
- LCD 表示画面: Shows real-time system data and settings.
- ロードボタン: Controls the DC load output.
- 取付穴： For securing the controller during installation.
- 負荷端末: DC 負荷に接続します。
- バッテリー端子: バッテリーバンクに接続します。
- Solar Terminals: ソーラーパネルアレイに接続します。
- Flat Mount Bracket: Optional bracket for surface mounting.
3. セットアップ
3.1コントローラーの取り付け
The controller offers flexible mounting options:
The controller can be installed using either a flush mount for a seamless look or a flat mount with the provided bracket. Choose a location that is dry, well-ventilated, and away from direct sunlight or heat sources.
- フラッシュマウント： Integrate the controller directly into a panel or wall for a clean finish.
- フラットマウント: Use the included bracket to mount the controller on a surface.
Ensure adequate space around the controller for air circulation to prevent overheating.
3.2配線接続
Follow the correct wiring sequence to prevent damage to the controller or battery:
- バッテリーを接続します。 First, connect the battery to the controller's battery terminals (7). Ensure correct polarity (positive to positive, negative to negative). The LCD will power on.
- ソーラーパネルを接続します。 Next, connect the solar panel to the controller's solar terminals (8). Ensure correct polarity.
- DC負荷を接続します。 Finally, connect your DC loads to the controller's load terminals (6). Ensure correct polarity.
切断シーケンス: To disconnect the system, reverse the order: disconnect the load, then the solar panel, and finally the battery.
This wiring diagram illustrates the proper connection order for the solar panel, battery, and DC load to the HQST solar charge controller.
When connecting wires, ensure they are inserted into the correct square socket for the cable, not the screw hole. Fully unscrew the terminal screws, insert the wire ends, then tighten the screws securely.
3.3 電池タイプの設定
The controller automatically recognizes 12V/24V Sealed (AGM), Gel, and Flooded batteries. For Lithium batteries, manual parameter setting is required:
The LCD display allows for manual adjustment of battery parameters, especially crucial for Lithium-ion batteries.
- Press and hold the 'Up & Down' button to enter the setting mode.
- Use the 'Up & Down' buttons to navigate to the battery type setting (e.g., "b01" for Gel, "b02" for Sealed, "b03" for Flooded, "b04" for Lithium).
- For Lithium batteries, further adjust charging voltage, over-discharge voltage, and other parameters as per your battery manufacturer's specifications.
- Press and hold the 'Load' button to save the settings and exit.
4. 操作手順
4.1 LCDディスプレイナビゲーション
The LCD screen provides real-time monitoring of your solar system:
The intuitive LCD screen cycles through various operational data, including battery voltage、PV voltage, charge current, load current, controller temperature, and battery state of charge (SOC).
- Press the 'Up & Down' button (2) to manually cycle through the displayed parameters.
- The display will automatically cycle through parameters if no button is pressed for a few seconds.
4.2 負荷制御
The controller features a DC load output with multiple control modes:
- Press the 'Load' button (4) to manually turn the DC load output on or off.
- The controller supports 17 different load control modes, allowing for customized operation (e.g., dusk-to-dawn, timed operation). Refer to the full manual for detailed instructions on setting load modes.
4.3USB充電ポート
The integrated 5V 1A USB port (1) can charge small electronic devices. This port is active when the DC load output is enabled.
4.4 4-Stagスマート充電
The controller employs an advanced 4-stagバッテリーの健全性と寿命を最適化する充電アルゴリズム:
This graph illustrates the voltageと現在のプロfiles during the 4-stage charging process, including Bulk, Boost/Absorption, Float, and Equalization stages。
- バルクチャージ： 最大電流を供給してバッテリーを急速充電します。
- Boost/Absorption Charge: 一定のボリュームを維持tage to ensure the battery is fully charged without overcharging.
- フロートチャージ： ボリュームを減らすtag自己放電を補い、バッテリーをフル充電状態に保つために、電圧を低いレベルに下げます。
- 均等化料金: (For lead-acid batteries only) Periodically overcharges the battery to balance cell voltagesと硫酸化を防ぎます。
5. メンテナンス
To ensure the longevity and optimal performance of your HQST solar charge controller, perform the following maintenance checks:
- 定期点検: Periodically check all wiring connections for tightness and signs of corrosion. Loose connections can cause voltag落下や過熱を防ぎます。
- 清潔さ: Keep the controller's exterior clean and free from dust, dirt, and debris. Use a dry cloth for cleaning. Do not use harsh chemicals or abrasive materials.
- 換気： Ensure that the installation area remains well-ventilated to allow for proper heat dissipation. Blocked vents can lead to overheating and reduced efficiency.
- バッテリーの状態: Monitor your battery's health and performance regularly. Follow the battery manufacturer's maintenance guidelines.
6。 トラブルシューティング
ソーラー充電コントローラーで問題が発生した場合は、次の一般的な問題と解決策を参照してください。
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| Controller Display is Off | No power from battery or incorrect battery connection. | バッテリーの接続を確認し、極性が正しいことを確認してください。バッテリーの容量を確認してください。tageは最小動作電圧を超えているtage. |
| バッテリーが充電されていない | No solar input, incorrect solar panel connection, or faulty solar panel. | Ensure solar panels are receiving adequate sunlight. Check solar panel wiring for correct polarity and secure connections. Test solar panel voltage. |
| DC Load Not Working | Load output disabled, incorrect load connection, or over-discharge protection active. | Press the Load button to enable output. Check load wiring for correct polarity and secure connections. Verify battery voltage is above the over-discharge protection threshold. |
| Error Code Displayed (e.g., E02) | Specific system fault (e.g., E02 typically indicates over-discharge). | Consult the full product manual for a complete list of error codes and their corresponding solutions. Address the underlying issue (e.g., charge battery for E02). |
If the problem persists after attempting these solutions, please contact HQST customer support.
7. 仕様
| 特徴 | 仕様 |
|---|---|
| モデル | 20A PWM Flush Mount |
| システム巻tage | 12V / 24V Auto-recognition (Lithium batteries require manual setting) |
| 最大充電電流 | 20A |
| バッテリーの互換性 | Lithium, Sealed (AGM), Gel, Flooded |
| 充電Stages | 4-Stage (Bulk, Boost/Absorption, Float, Equalization) |
| USB出力 | 5V 1A |
| 表示タイプ | 液晶 |
| 製品寸法（長さ x 幅 x 高さ） | 5.11 x 3.54 x 1.36インチ |
| アイテム重量 | 9.1オンス |
| 最高使用温度 | 45°C (113°F) |
| 保護機能 | 逆極性、過電圧tage, over-current, over-discharge, short-circuit, reverse current. |
8. 保証とサポート
This HQST product is backed by a 10年間保証, reflecting our commitment to quality and durability. For any technical assistance, troubleshooting, or warranty claims, please contact HQST customer support.
You can find contact information and additional resources on the official HQST webサイト： www.hqst.com
Please have your product model number (20A PWM Flush Mount) and purchase details ready when contacting support.