1. はじめに
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Acrel DTSD1352 Three Phase Bidirectional Energy Meter. This device is designed for accurate measurement of three-phase energy consumption and generation, featuring RS485 communication for integration into monitoring systems. Please read this manual thoroughly before installation and operation to ensure safe and efficient use.
2. 安全情報
警告: 感電の危険があります!
- 設置とメンテナンスは、資格のある電気技師のみが行う必要があります。
- Ensure all power is disconnected before installing or servicing the meter.
- Do not touch live terminals.
- メーターや電気システムの損傷を防ぐために、配線接続が正しいことを確認してください。
- The meter must be installed in a dry, well-ventilated area, free from excessive dust, corrosive gases, and direct sunlight.
3.製品オーバーview
The Acrel DTSD1352 is a compact and robust three-phase multi-function energy meter. It features a clear LCD display for real-time data, intuitive control buttons, and various connection terminals.
図3.1: フロント view of the DTSD1352 meter. This image displays the main LCD screen showing power readings (e.g., 0.00 kW), the "SET" button, and three orange arrow buttons for navigation. Terminal blocks are visible at the top and bottom for electrical connections.
図3.2: 角度付き view of the DTSD1352 meter. This perspective highlights the compact design and the various input/output terminals on the top and bottom, as well as the side labeling for model identification.
4. 仕様
The following table outlines the key technical specifications of the Acrel DTSD1352 energy meter. For detailed information, refer to the product datasheet.
図4.1: Detailed technical specifications. This image presents a table covering various parameters such as reference voltage (3*57.7/100V, 3*220/380V, 3*380V), reference frequency (50Hz), maximum current (6A, 80A), accuracy (Class 0.5S), communication interface (RS485, MODBUS-RTU), dimensions (127*88*70 mm), and environmental conditions (operating temperature -25~55℃, humidity ≤95%).
| パラメータ | 価値 |
|---|---|
| リファレンスVol。tage | 3*57.7/100V, 3*220/380V, 3*380V |
| 基準周波数 | 50Hz |
| 最大電流 | 6A, 80A (depending on model) |
| Accuracy of active kWh | クラス0.5S |
| 通信インターフェース | RS485 |
| 通信プロトコル | モドバスRTU |
| 寸法（長さ×幅×高さ） | 127mm×88mm×70mm |
| 動作温度 | -25℃～55℃ |
| 保管温度 | -40℃～70℃ |
| 湿度 | ≤95% (結露なきこと) |
| 高度 | <2000m |
| アイテム重量 | 7.1オンス（約200g） |
5.設置と配線
Proper installation and wiring are critical for the accurate and safe operation of the DTSD1352 meter. Refer to the diagrams below for connection methods.
図5.1: Wiring diagrams. This image illustrates two primary wiring methods: a 3-phase 4-wire (3P4W) direct connection where power lines (A, B, C, N) connect directly to the meter, and a connection via Current Transformers (CTs) for higher current applications, showing the CTs connected to the respective phase lines and then to the meter.
5.1 Direct Connection (3P4W)
For direct connection, ensure the phase lines (A, B, C) and neutral (N) are connected to the corresponding terminals on the meter. This method is typically used for lower current applications where the meter can directly handle the load current.
- Connect Phase A to terminal 'A'.
- Connect Phase B to terminal 'B'.
- Connect Phase C to terminal 'C'.
- Connect Neutral to terminal 'N'.
- すべての接続が安全かつ適切に絶縁されていることを確認してください。
5.2 Connection via Current Transformers (CTs)
For higher current applications, the DTSD1352 meter can be connected via external Current Transformers (CTs). This method scales down the current to a measurable level for the meter.
- Install the CTs on each phase line (A, B, C).
- Connect the secondary windings of the CTs to the corresponding current input terminals (e.g., Ia*, Ia, Ib*, Ib, Ic*, Ic) on the meter.
- Ensure the polarity of the CTs is correct (P1/K to the source side, P2/L to the load side, and S1/S2 to the meter). Incorrect polarity will result in inaccurate readings.
- ボリュームを接続するtage inputs (Ua, Ub, Uc, N) directly from the respective phases and neutral to the meter.
- It is recommended to install a fuse on the voltage input lines for protection.
Important: Always ensure the CT secondary circuit is closed before applying power to the primary circuit. Never open the secondary circuit of a live CT.
6. 操作
Once installed and powered, the DTSD1352 meter will automatically begin measuring. The LCD display shows various parameters, which can be navigated using the control buttons.
6.1 ディスプレイナビゲーション
- LCDディスプレイ: Shows real-time measurements such as voltage, current, active power, reactive power, power factor, frequency, and total energy (kWh).
- "SET" Button: Used to enter the parameter setting mode or confirm selections.
- Arrow Buttons (Left, Right, Up, Down): Used to navigate through different display screens or adjust parameter values in setting mode.
6.2 Reading Energy Data
Press the arrow buttons to cycle through the various measurement screens. Common readings include:
- 総有効エネルギー（kWh）
- 順方向有効エネルギー（kWh）
- 逆有効エネルギー（kWh）
- 巻tage (V) per phase
- Current (A) per phase
- Active Power (kW) per phase and total
- Reactive Power (kVar) per phase and total
- 力率（PF）
- 周波数 (Hz)
6.3 RS485通信
The meter supports RS485 communication with MODBUS-RTU protocol. This allows for remote reading of meter data and configuration. Refer to the MODBUS communication protocol document for detailed register addresses and commands.
7. メンテナンス
The DTSD1352 energy meter is designed for long-term, reliable operation with minimal maintenance. However, periodic checks are recommended.
- クリーニング： メーターは清潔に保ち、ほこりを取り除いてください。清掃には柔らかく乾いた布を使用してください。研磨剤入りの洗剤や溶剤は使用しないでください。
- 接続: Periodically check all wiring connections to ensure they are tight and secure. Loose connections can lead to inaccurate readings or overheating.
- 環境： 動作環境が指定された温度と湿度の範囲内であることを確認してください。
- 較正： The meter is factory calibrated. If you suspect inaccuracies, contact qualified service personnel for recalibration.
8。 トラブルシューティング
This section provides solutions to common issues you might encounter with the DTSD1352 meter.
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| メーターの表示が空白です。 | メーターに電源が供給されていません。 | Check the main power supply and wiring connections to the meter's voltage input terminals. Ensure fuses are intact. |
| 不正確なエネルギー測定値。 | Incorrect wiring, incorrect CT ratio setting (if applicable), faulty CTs, or meter malfunction. | Verify all wiring connections according to Section 5. Ensure CT polarity is correct. Check if the CT ratio programmed in the meter matches the physical CTs. If issues persist, contact technical support. |
| RS485通信障害。 | Incorrect wiring of RS485 terminals (A/B), incorrect communication parameters (baud rate, parity, address), or software issue. | Check RS485 A and B terminal connections. Verify communication settings (baud rate, data bits, stop bits, parity, meter address) in your master device match the meter's settings. Ensure proper termination resistors are used if necessary. |
| Meter shows "Error" or specific error codes. | 内部障害または特定の動作上の問題。 | Note down the error code and consult the full product manual or contact technical support for specific error code interpretations and solutions. |
9. 保証とサポート
This product is manufactured by TGLGTQPX and sold under the Acrel brand. For specific warranty terms and conditions, please refer to the documentation provided at the time of purchase or contact your vendor. General support for the Acrel DTSD1352 meter can be obtained through the manufacturer's official channels or your authorized distributor.
For technical assistance, troubleshooting beyond this manual, or spare parts, please contact:
- メーカー: TGLGTQPX
- 製品ブランド: Acrel
- モデル： DTSD1352
- (Contact information such as website or email would typically be provided here by the manufacturer.)
