1. はじめに
This manual provides essential information for the safe and efficient operation of your COTEC SP2000-224 Pure Sine Wave Inverter. This advanced inverter offers high efficiency and power density, featuring selectable output voltage and frequency, all housed within a robust aluminum casing. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the device.
2. 安全情報
傷害やインバータまたは接続機器の損傷を防ぐために、常に次の安全上の注意事項を守ってください。
- 換気: インバータの周囲に十分な換気を確保してください。通気口を塞がないでください。
- 環境: インバーターは、直射日光、熱源、可燃性物質から離れた、乾燥した涼しい換気の良い場所に設置してください。
- 接地: Properly ground the inverter chassis to prevent electrical shock.
- DC入力: Connect the inverter only to a 24V DC battery bank. Ensure correct polarity (positive to positive, negative to negative). Reverse polarity will damage the unit.
- AC出力: Do not overload the inverter. Ensure the total wattage of connected AC devices does not exceed the inverter's rated output.
- サービス: インバータをご自身で分解したり、修理したりしないでください。修理はすべて資格のある専門家にご依頼ください。
- 水への露出: Keep the inverter away from water, rain, or excessive moisture.
3 製品の特徴
The COTEC SP2000-224 Inverter incorporates several advanced features for reliable power conversion:
- 敏感な電子機器用の純粋な正弦波出力。
- Power ON / OFF remote control capability via a dedicated green terminal.
- Full input and output isolation for enhanced safety.
- Temperature and load-controlled cooling fan for efficient heat dissipation.
- User-friendly interface with 3-color LED status indicators.
- Output frequency selectable between 50 Hz and 60 Hz via DIP switch.
- 出力ボリュームtagDIP スイッチで選択可能です。
- Power saving mode adjustable via a variable resistor.
- Comprehensive input protection: Reverse Polarity (via fuse), Under Voltage、Over Voltage.
- Comprehensive output protection: Short Circuit, Overload, Over Temperature.
- Certifications: E13, UL, CE, FCC approved.
4. セットアップとインストール
インバーターの性能と安全性を確保するには、適切な設置が重要です。
4.1物理的な設置
Mount the inverter securely in a location that meets the safety requirements mentioned in Section 2. Ensure sufficient space around the unit for airflow.

図4.1: 角度付き view of the COTEC SP2000-224 Pure Sine Wave Inverter, showcasing its robust blue and gray casing.
4.2 DC入力接続
Connect the inverter to a 24V DC battery bank using appropriate gauge cables. Ensure the positive (+) terminal of the inverter connects to the positive terminal of the battery, and the negative (-) terminal of the inverter connects to the negative terminal of the battery. Install an appropriate fuse or circuit breaker in the positive DC line close to the battery.

図4.2: 後方 view of the inverter, highlighting the DC input terminals (red for positive, black for negative), the chassis ground screw, and the remote control terminal.
4.3 Chassis Ground Connection
Connect the chassis ground terminal (labeled 'CHASSIS GROUND') to a reliable earth ground point. This is a critical safety step.
4.4 AC Output and Controls
The inverter features a standard AC outlet and control switches on its front panel.

図4.3: フロント view of the inverter, displaying the AC output socket, the main power switch, LED indicators, and DIP switches for configuration.
4.5 DIPスイッチの設定
The inverter features DIP switches for configuring output frequency and voltage. Refer to the specifications table (Section 7) or the product label for specific settings. Ensure the inverter is powered off before adjusting DIP switches.
- 出力周波数: Select 50 Hz or 60 Hz based on your regional requirements.
- 出力巻tage: 希望するAC出力電圧を選択するtage (e.g., 230VAC for this model).
5. 操作手順
5.1 電源のオン/オフ
After all connections are secure and verified, switch the main power button on the inverter to the 'ON' position. The LED indicators will illuminate to show the inverter's status. To power off, switch the button to 'OFF'. A remote control terminal is also available for external ON/OFF control.
5.2 LEDインジケーター
The 3-color LED indicators provide visual feedback on the inverter's operational status and any potential faults. Consult the product documentation or the specifications table for a detailed explanation of each LED state.
5.3 省電力モード
The power saving mode can be adjusted via a variable resistor. This feature helps reduce quiescent current draw when no load or a very light load is connected, conserving battery power.
5.4 AC負荷の接続
Plug your AC appliances into the inverter's AC output socket. Ensure the total power consumption does not exceed the inverter's continuous power rating (2000W for this model). For inductive loads (e.g., motors, refrigerators), consider their surge power requirements, which can be significantly higher than their running power.
6. メンテナンス
定期的なメンテナンスにより、最適なパフォーマンスが確保され、インバーターの寿命が延びます。
- クリーニング: インバーターは清潔に保ち、ほこりを取り除いてください。表面は乾いた布で拭いてください。液体洗剤は使用しないでください。
- 換気: Periodically check that the cooling fan and ventilation openings are clear of obstructions.
- 接続: Inspect all DC and AC connections regularly to ensure they are tight and free from corrosion. Loose connections can cause overheating and poor performance.
- バッテリーのメンテナンス: Follow the manufacturer's recommendations for your battery bank's maintenance.
7。 トラブルシューティング
インバータが正しく機能しない場合は、次の一般的な問題と解決策を参照してください。
- 出力電力なし:
- Check DC input connections and battery voltage.
- Verify the inverter's power switch is ON.
- Check for blown DC input fuses (if applicable).
- 過負荷表示:
- インバータに接続されている負荷の合計を減らします。
- Disconnect and reconnect the load to reset the inverter.
- Over Temperature Indication:
- インバータの周囲に十分な換気を確保してください。
- 冷却ファンが動作しているか確認してください。
- Reduce the load if operating in a hot environment.
- 低バッテリー容量tage アラーム/シャットダウン:
- Recharge the battery bank.
- Check battery connections for looseness or corrosion.
For persistent issues, contact COTEC customer support.
8. 仕様
The following table details the technical specifications for the COTEC SP2000 series, with specific values for the SP2000-224 model highlighted where applicable.

図8.1: Detailed technical specifications for the COTEC SP-2000 series, including the SP2000-224 model.
| 特徴 | 仕様 |
|---|---|
| ブランド | コテック |
| モデル名 | SP2000 (SP2000-224 variant) |
| 定格出力 | 2000W |
| Surge Power (1 Sec) | 4000W |
| DC入力ボリュームtage | 24VDC (Operating Range: 21.0-33.0VDC) |
| AC出力Voltage | 230VAC(選択可能) |
| 出力周波数 | 50/60Hz(選択可能) |
| 出力波形 | Pure Sine Wave (THD<3% at nominal load) |
| 効率(最大) | 93% |
| 冷却 | Temperature & load controlled fan |
| 動作温度 | -20°C ~ +40°C |
| 保管温度 | -30°C ~ +70°C |
| 寸法(幅×高さ×奥行き) | 17.44 x 9.76 x 3.27 インチ (443 x 248 x 83 mm) |
| アイテム重量 | 1 pounds (approximate, actual unit weight may vary) |
| パッケージ寸法 | 19 x 12 x 6インチ |
| 認定資格 | E13, UL, CE, FCC approved |
8.1 機械図面
For detailed physical dimensions and mounting information, refer to the mechanical drawings below.

図8.2: Mechanical drawings providing precise dimensions for installation planning.
9. 保証とサポート
COTEC products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official COTEC webサイトでご確認ください。保証請求の際は購入証明として領収書を保管してください。





