1. はじめに
The POWERTECH MP3752 is an intelligent and lightweight solar charge controller designed to manage the power flow from your solar panels to your battery bank. Utilizing Pulse Width Modulation (PWM) technology, it ensures efficient and safe battery charging. This controller offers a set-and-forget operation, providing maximum charge into your batteries without constant monitoring. It integrates essential safety features such as overload, short-circuit, over-discharge, and reverse-polarity protection. Additionally, a convenient USB port on the front panel allows for up to 1.2A charging, useful for mobile devices during power outages. The unit supports various battery types including sealed lead-acid, Gel, and flooded cells, and automatically selects the optimal charging mode (bulk, equalise, float).
2. 安全情報
Please read all instructions carefully before installation and operation. Failure to follow these instructions may result in damage to the unit, battery, or personal injury.
- 電源を入れる前に、すべての接続が正しく安全であることを確認してください。
- Do not connect the solar controller to an AC power source.
- コントローラーは、可燃性物質や直射日光を避け、換気の良い場所に設置してください。
- バッテリー端子やソーラーパネル端子のショートを避けてください。
- 必ず最初にバッテリー、次にソーラーパネル、最後に負荷を接続してください。取り外しは逆の順序で行ってください。
- This device is not waterproof; protect it from moisture and water.
- 資格のある担当者のみが設置と保守を行う必要があります。
3 製品の特徴
- Automatic charge mode selection (Bulk, Equalise, Float).
- Suitable for both 12V and 24V battery banks.
- Integrated USB charging port (5V, 1.2A max) on the front panel.
- Supports sealed lead-acid, Gel, and flooded battery types.
- Comprehensive protection features: overload, short-circuit, over-discharge, reverse-polarity.
- Pulse Width Modulation (PWM) charging technology.
4. パッケージ内容
受け取り次第、パッケージの内容をご確認ください。
- 1 x POWERTECH MP3752 Solar Controller
- ユーザーマニュアル (本書) x 1
5.製品オーバーview と接続
図1: 前面 view of the POWERTECH MP3752 Solar Controller. This image displays the PV LOAD, UVW, LVD, Load ON, Over Load, Short-Circuit indicators, the USB port, and the connection terminals for solar panels, battery, and load.
The MP3752 controller features clearly marked terminals for easy connection. Refer to Figure 1 for a visual guide to the controller's layout and indicators.
接続端子:
- Solar Panel Input (PV): Connect your solar panel array here. Ensure correct polarity (+ and -).
- バッテリー接続: Connect your 12V or 24V battery bank here. Observe correct polarity (+ and -).
- 負荷出力: Connect your DC loads (e.g., lights, fans) here. Observe correct polarity (+ and -).
- USBポート: 5V, 1.2A max output for charging small electronic devices.
6. セットアップとインストール
ソーラー充電コントローラーを適切に設置するには、次の手順に従ってください。
- 取り付け: Choose a dry, well-ventilated indoor location, away from direct sunlight, high temperatures, and moisture. Ensure sufficient air circulation around the controller.
- バッテリー接続:
- Connect the positive (+) terminal of the battery to the battery positive (+) terminal on the controller.
- Connect the negative (-) terminal of the battery to the battery negative (-) terminal on the controller.
- The controller will automatically detect if it's a 12V or 24V system.
- ソーラーパネル接続:
- Connect the positive (+) terminal of the solar panel to the solar panel positive (+) terminal on the controller.
- Connect the negative (-) terminal of the solar panel to the solar panel negative (-) terminal on the controller.
- 開放電圧を確保するtage of the solar panel does not exceed the maximum input voltage of the controller (typically 50V for 12/24V systems).
- 負荷接続:
- Connect the positive (+) terminal of your DC load to the load positive (+) terminal on the controller.
- Connect the negative (-) terminal of your DC load to the load negative (-) terminal on the controller.
- Do not exceed the maximum rated current for the load output (20A).
- 接続を確認します。 Double-check all connections for correct polarity and tightness before proceeding.
Figure 2: The POWERTECH MP3752 Solar Controller shown in its packaging, illustrating its application with solar panels. This image provides a contextual view of the product's intended use.
7. 操作手順
7.1. Automatic System Voltag認識
The controller automatically detects whether the connected battery bank is 12V or 24V upon initial connection. Ensure the battery is connected first for proper voltage検出。
7.2.充電モード
The MP3752 employs intelligent PWM charging, automatically cycling through different stages to optimize battery health and lifespan:
- バルクチャージ： 最大電流を供給して、バッテリーを急速に約 80% 充電します。
- Equalise Charge: Periodically applies a higher voltage to equalize the charge among battery cells, preventing sulfation and extending battery life (for flooded batteries).
- フロートチャージ： 小さな一定電圧を供給することでバッテリーをフル充電状態に維持しますtage、自己放電を補償します。
7.3. 負荷制御
The load output is controlled by the controller to prevent over-discharge of the battery. When the battery voltage は Low Vol を下回りますtage Disconnect (LVD) threshold, the load output will be automatically disconnected. It will reconnect once the battery has recharged to the Low Voltage Reconnect (LVR) threshold.
Press the power button on the controller to manually turn the load output ON or OFF.
7.4.USB充電ポート
The 5V, 1.2A USB port can be used to charge small electronic devices like smartphones or tablets. This port is active as long as the battery has sufficient charge.
8. 指標
The POWERTECH MP3752 features several LED indicators to provide real-time status information:
- PV LOAD (Solar Panel Indicator):
- 緑： Solar panel is connected and generating power.
- オフ： No solar input or insufficient light.
- 充電インジケーター:
- 緑： バッテリーは充電中です。
- オフ： Battery is fully charged or not charging.
- オーバーボルtageインジケーター：
- 赤： 入力ボリュームtage from solar panel is too high, or battery voltage is overcharge protection level.
- UVW (Battery Voltage Indicator): Multiple LEDs indicating battery charge level.
- LVD（低巻tage Disconnect Indicator):
- 赤： バッテリーvoltage is low, load output has been disconnected.
- Load ON Indicator:
- 緑： Load output is active.
- Over Load Indicator:
- 赤： Load current exceeds the maximum rated current. Load output may be temporarily disconnected.
- Short-Circuit Indicator:
- 赤： Short-circuit detected on the load output. Load output will be disconnected.
9. メンテナンス
ソーラー充電コントローラーの最適なパフォーマンスと寿命を確保するには、定期的なメンテナンスをお勧めします。
- クリーニング： Periodically clean the exterior of the controller with a dry, soft cloth. Do not use solvents or abrasive cleaners.
- 接続: Annually check all wiring connections for tightness and corrosion. Loose connections can cause overheating and poor performance.
- 換気： Ensure that the ventilation openings are not blocked and that there is adequate airflow around the unit.
- 検査： コントローラーに物理的な損傷、変色、異臭などの兆候がないか検査します。
10。 トラブルシューティング
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| ソーラーパネルからの充電はありません。 |
|
|
| Load output not working. |
|
|
| オーバーボルtageインジケーターが点灯しています。 |
|
|
11. 仕様
| パラメータ | 価値 |
|---|---|
| モデル番号 | MP3752 (03617080) |
| システム巻tage | 12V/24V自動検知 |
| 最大充電電流 | 20A |
| 最大負荷電流 | 20A |
| USB出力 | 最大5V、1.2A |
| 充電タイプ | PWM (Bulk, Equalise, Float) |
| サポートされているバッテリーの種類 | Sealed Lead-Acid, Gel, Flooded |
| 製品寸法 | 5.83 x 3.39 x 1.38インチ |
| アイテム重量 | 5.6オンス |
| メーカー | パワーテック |
| ブランド | ジェイカー |
12. 保証とサポート
This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. Please refer to your purchase documentation for specific warranty terms and duration. For technical support, troubleshooting assistance, or warranty claims, please contact your retailer or the manufacturer directly.
Note: Unauthorized disassembly or modification of the product will void the warranty.
