1. はじめに
This instruction manual provides essential information for the safe and effective use of your DALY LiFePo4 72V 40A 24S Smart Battery Management System (BMS). This BMS is designed to protect and optimize the performance of 24-series LiFePo4 battery packs, commonly used in energy storage, electric vehicles, electric tools, and solar systems. Please read this manual thoroughly before installation and operation.
2. 安全情報
ハイボリュームでの作業tage battery systems requires extreme caution. Failure to follow safety instructions can result in serious injury, property damage, or death. Always adhere to the following safety guidelines:
- 設置またはメンテナンスを行う前に、すべての電源が切断されていることを確認してください。
- 絶縁手袋や目の保護具などの適切な個人用保護具 (PPE) を着用してください。
- Verify correct wiring polarity before connecting the BMS to the battery pack. Incorrect wiring can damage the BMS and battery.
- バッテリー端子または BMS 接続を短絡させないでください。
- BMS を水、湿気、可燃性物質から遠ざけてください。
- 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。
- Do not attempt to open or repair the BMS unit. Contact support for assistance.
3. パッケージ内容
パッケージにすべてのアイテムが揃っていることを確認します。
- DALY LiFePo4 72V 40A 24S Smart BMS (1 unit)
- Bluetooth Module (1 unit)
- NTC Temperature Sensor (1 unit)
- Sampling Cable (Balance Wires) (1 set)
- UART Communication Cable (1 unit)
- 取扱説明書（1部）
図3.1：例ample of package contents for the DALY Smart BMS.
4.製品オーバーview
The DALY Smart BMS provides comprehensive protection for your LiFePo4 battery pack, including overcurrent, overcharge, overdischarge, short circuit, and temperature protection. It features a robust design with injection patent technology and a patent shell for waterproof, dustproof, shockproof, and anti-static properties.
図4.1：上 view of the DALY Smart BMS, highlighting main connections and communication interfaces.
Figure 4.2: Dimensions and continuous discharge current rating of the DALY Smart BMS.
5. セットアップとインストール
Careful installation is crucial for the proper functioning of the BMS. Follow these steps precisely:
- バッテリーパックを準備します。 Ensure your LiFePo4 battery pack consists of 24 cells in series, with each cell rated at 3.2V.
- バランスワイヤを接続します。
- Before connecting the balance wires to the BMS, ensure all balance wires are correctly welded to their respective battery cell terminals.
- Connect the balance wire harness to the BMS balance port. Ensure the B- wire (total negative pole) is connected first, followed by B1, B2, and so on, up to B24 (total positive pole).
- ボリュームを確認するtag各セルの e と総体積tage using a multimeter before proceeding.
- Connect Main Power Wires:
- Connect the main negative wire from the battery pack to the B- terminal on the BMS.
- Connect the main negative wire for the load/charger to the P- terminal on the BMS.
- Connect NTC Temperature Sensor: Plug the NTC sensor into the designated port on the BMS. Position the sensor appropriately on the battery pack to monitor temperature.
- Connect Communication Modules (Optional):
- For Bluetooth connectivity, plug the Bluetooth module into the UART port.
- For PC communication, connect the UART cable to the UART port and then to a USB-UART converter (if needed) to your computer.
- Activate the BMS: After all connections are secure, activate the BMS by pressing the activation button on the power board or by connecting the charger to the battery pack.
Figure 5.1: Wiring diagram for the DALY Smart BMS. Ensure all connections are made correctly.
For visual guidance on wiring and connections, refer to the official DALY website tutorial videos: DALY BMS Tutorial Videos.
6. 操作手順
The DALY Smart BMS allows monitoring and parameter modification via Bluetooth app or PC software.
6.1. Bluetoothアプリの操作
Connect the Bluetooth module to the BMS UART port. Download the DALY BMS app from your smartphone's app store. Open the app, search for your BMS, and connect. The initial password for the app is 123456アプリを通じて、次のことができます。
- Monitor real-time battery status (voltage、電流、温度など）。
- View 個々のセルの容量tagバランス調整用です。
- Adjust protection parameters (e.g., overcharge/overdischarge voltage, overcurrent limits).
- Check fault alarms and historical data.
Figure 6.1: Monitoring the BMS via the Bluetooth smartphone application.
6.2. PC ソフトウェアの操作
Connect the BMS to your computer using the UART cable and a USB-UART converter. Install the DALY BMS PC software. The PC software offers more detailed control and data logging capabilities, allowing for advanced parameter configuration and firmware updates.
Figure 6.2: Interacting with the BMS using PC software via UART connection.
重要： The factory default parameters are general. It is essential to review and adjust these parameters to match the specific capacity (Ah) of your battery pack. Incorrect parameter settings can lead to inaccurate state-of-charge readings and potentially damage the battery. The percentage of remaining power will be inaccurate if the capacity is not set correctly.
7. メンテナンス
To ensure the longevity and optimal performance of your DALY Smart BMS:
- Regularly inspect all wiring for signs of wear, corrosion, or loose connections.
- Keep the BMS clean and free from dust and debris.
- Ensure adequate ventilation around the BMS to prevent overheating.
- Periodically check battery cell voltages through the app or software to confirm proper balancing.
- Avoid exposing the BMS to extreme temperatures or harsh environmental conditions beyond its operating specifications.
8。 トラブルシューティング
If you encounter issues with your DALY Smart BMS, consider the following common troubleshooting steps:
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| BMS not activating/no power output | Incorrect wiring; BMS not activated; low battery voltage. | Verify all wiring connections (B-, P-, balance wires). Press the activation button or connect the charger to activate. Check battery voltage; if too low, charge the battery. |
| Bluetooth接続の問題 | Bluetooth module not properly connected; app issues; interference. | Ensure the Bluetooth module is securely plugged into the UART port. Restart the app and try reconnecting. Check for other Bluetooth devices causing interference. Ensure the app is updated. |
| Inaccurate State of Charge (SOC) | Battery capacity parameter not set correctly in the app/software. | Access the app or PC software and set the battery pack's actual Ah capacity. |
| Overcharge/Overdischarge protection tripping prematurely | Protection parameters set too low/high; faulty cell. | Review and adjust overcharge/overdischarge voltage parameters in the app/software to match your battery specifications. Check individual cell voltages for imbalances. |
If the problem persists after attempting these steps, please contact DALY customer support for further assistance.
9. 仕様
| 特徴 | 仕様 |
|---|---|
| モデル番号 | LFP24S |
| バッテリーセルの構成 | LiFePo4 (Lithium Iron Phosphate) |
| シリーズ構成 | 24S（24個のセルを直列に接続） |
| 名目Voltage | 72V (for 3.2V rated cells) |
| 連続放電電流 | 40A |
| 通信インターフェース | UART (Bluetooth module included) |
| 製品寸法（長さ x 幅 x 高さ） | 5.03 x 2.6 x 0.51 インチ (128 x 66 x 18 mm) |
| アイテム重量 | 13.4オンス |
| メーカー | Dongguan Daly Electronics Co., Ltd |
10. 保証とサポート
DALY Electronics is committed to providing high-quality products and customer satisfaction. This product comes with lifetime technical support.
- テクニカルサポート： For any technical inquiries, installation assistance, or troubleshooting not covered in this manual, please contact DALY customer service. We offer 24-hour one-on-one customer service.
- 連絡先： Refer to the official DALY web最新の連絡先情報については、サイトまたは購入書類をご覧ください。
