1. はじめに
This manual provides essential information for the safe and efficient operation, installation, and maintenance of the SUSWE SU800 series Variable Frequency Drive (VFD). The SU800 VFD is designed to control the speed of AC motors by varying the frequency and voltage of the power supplied to the motor. It features RS485 communication for integration into control systems and is available in various power ratings (4KW, 5.5KW, 7.5KW) and voltage オプション (220V、380V)。
Please read this manual thoroughly before installation, operation, or maintenance to ensure proper usage and prevent potential hazards.

Figure 1: SUSWE SU800 VFD Frequency Converter. This image displays the front view of the VFD unit, showing the control panel with digital display and buttons.
2. 安全情報
Adherence to safety precautions is critical to prevent personal injury and equipment damage. Always follow local electrical codes and safety regulations.
- 電気による危険: The VFD contains high voltage components. Do not touch internal components immediately after power-off.
- 放電時間: Wait at least 5 minutes after disconnecting power before performing any maintenance or inspection. The capacitors inside the VFD can retain dangerous voltage for an extended period.
- 有資格者: Installation, wiring, and maintenance should only be performed by qualified and trained electrical personnel.
- 接地: 地域の規制に従って VFD が適切に接地されていることを確認してください。
- 環境条件: Do not operate the VFD in environments with excessive dust, moisture, corrosive gases, or direct sunlight.

Figure 2: Close-up of the SU800 VFD control panel, highlighting the digital display, control buttons, and important safety warning labels regarding dangerous voltages and discharge time.
3.製品オーバーview
The SUSWE SU800 VFD is a versatile frequency converter designed for precise motor speed control. Its robust design and advanced features make it suitable for various industrial applications.
主な特徴:
- Variable Frequency Drive (VFD) for AC motor speed control.
- Available in 4KW, 5.5KW, and 7.5KW power ratings.
- Supports 220V and 380V input voltages。
- RS485 communication interface for remote control and monitoring.
- 3-phase output for industrial motors.
- Integrated control panel with digital display.
4. セットアップとインストール
4.1 開梱と検査
- Carefully remove the VFD from its packaging.
- Inspect the unit for any signs of physical damage during transit. Report any damage to your supplier immediately.
- 梱包リストに記載されている付属品がすべて揃っていることを確認してください。
4.2 取り付け
Mount the VFD vertically on a flat, non-flammable surface. Ensure adequate clearance around the unit for proper ventilation and heat dissipation. Avoid mounting in direct sunlight or near heat sources.
4.3配線
All wiring must comply with local and national electrical codes. Use appropriate wire gauges for the VFD's power rating. Ensure all connections are secure.
- 電源入力(R、S、T): Connect the main power supply to the R, S, T terminals. Ensure correct voltage (220V or 380V) matches the VFD model.
- モーター出力(U、V、W): Connect the motor's three-phase windings to the U, V, W terminals.
- 接地(PE): 保護アース (PE) 端子を信頼できる接地点に接続します。
- Control Terminals (PB, P, etc.): Connect external control signals (e.g., start/stop, speed reference, RS485) to the designated control terminals as per your application requirements. Refer to the detailed wiring diagram in the full technical manual for specific terminal functions.

図3:内部 view of the SU800 VFD showing the main circuit board and clearly labeled wiring terminals for power input (R, S, T), motor output (U, V, W), grounding (PE), and control signals (PB, P).
5. 操作手順
5.1コントロールパネルオーバーview
The VFD features an intuitive control panel for local operation and parameter setting.
- デジタルディスプレイ: Shows frequency (Hz), current (A), voltage (V), and other operational parameters.
- 実行ボタン: モーターを始動します。
- STOP/RSTボタン: Stops the motor or resets faults.
- PRGボタン: パラメータ設定モードを開始/終了します。
- Arrow Buttons (▲ ▼ < >): Navigate through parameters and adjust values.
- MFK Button: Multi-function key, typically used for quick access or specific functions.
- ENTERボタン: パラメータ設定を確認します。
- Potentiometer/Dial: For analog speed reference adjustment.

Figure 4: The SU800 VFD connected to an external control panel via an Ethernet cable. This illustrates the flexibility of controlling the VFD either directly or remotely.
5.2 基本操作
- 電源オン: Apply main power to the VFD. The display will illuminate.
- 始動モーター: を押す 走る button. The motor will start and accelerate to the set frequency.
- 速度を調整: Use the potentiometer dial or the ▲/▼ buttons (in parameter mode) to adjust the output frequency and thus the motor speed.
- モーター停止: を押す 停止/RST ボタンを押します。モーターが減速して停止します。
5.3パラメータ設定
The SU800 VFD has numerous parameters for fine-tuning its operation. Refer to the comprehensive parameter list in the full technical manual for detailed descriptions and adjustment procedures. Common parameters include acceleration/deceleration times, maximum/minimum frequencies, motor parameters, and control modes.
- プレス 広報 パラメータ設定モードに入ります。
- Use ▲/▼ to navigate through parameter groups and individual parameters.
- プレス 入力 パラメータを選択します。
- Use ▲/▼ to change the parameter value.
- プレス 入力 新しい値を保存します。
- プレス 広報 パラメータ設定モードを終了します。
6. メンテナンス
Regular maintenance ensures the longevity and reliable operation of your VFD. Always disconnect power and wait for the discharge time (at least 5 minutes) before performing any maintenance.
- クリーニング: Keep the VFD clean and free from dust and debris. Use a soft, dry cloth. Do not use liquid cleaners.
- Cooling Fan Inspection: Periodically check the cooling fan for obstructions or excessive noise. Ensure the fan is operating correctly to prevent overheating.
- 端末接続: Periodically check all wiring terminals for tightness. Loose connections can cause overheating and malfunction.
- 環境チェック: 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。

図 5: 拡大図 view of the cooling fan located on the side of the SU800 VFD, essential for dissipating heat during operation.
7。 トラブルシューティング
このセクションでは、一般的な問題に対する解決策を紹介します。複雑な問題については、テクニカルサポートにお問い合わせください。
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| VFD の電源が入りません。 | 入力電源なし、ヒューズ切れ、内部障害。 | Check power supply; Inspect fuses; Contact support. |
| モーターが始動しません。 | Incorrect wiring; Parameter settings; Emergency stop active. | Verify wiring; Check parameters (e.g., control mode); Release E-stop. |
| 過電流障害。 | Motor overload; Short circuit; Rapid acceleration. | Reduce load; Check motor/cables; Increase acceleration time. |
| オーバーボルtag欠陥です。 | 高い入力ボリュームtage; 急減速; 回生負荷。 | 入力ボリュームを確認してくださいtage; 減速時間を長くする; ブレーキ抵抗器を考慮する。 |
| Overheat fault. | Insufficient ventilation; Clogged fan; High ambient temperature. | Ensure proper airflow; Clean fan/heatsink; Reduce ambient temperature. |
8. 仕様
The following table outlines the general specifications for the SUSWE SU800 VFD series. Specific values may vary by model (e.g., 4KW, 5.5KW, 7.5KW, 220V, 380V).
| 特徴 | 説明/値 |
|---|---|
| モデルシリーズ | SUSWE SU800 |
| 入力ボリュームtage | 220V / 380V(モデルによって異なります) |
| 出力フェーズ | 3相 |
| 出力定格 | 4KW, 5.5KW, 7.5KW (depending on model) |
| 制御方法 | V/F Control, Vector Control (sensorless) |
| 出力周波数範囲 | 0.00Hz~400.00Hz |
| コミュニケーション | RS485 (Modbus RTU) |
| 動作温度 | -10°C ~ 40°C (14°F ~ 104°F) |
| 湿度 | 90% RH未満(結露なし) |
| 寸法(約) | Varies by power rating. Example: 1.18 x 0.79 x 0.79 inches (for a smaller unit, actual VFDs are larger) |
| 重量(約) | Varies by power rating. Example: 1.76 ounces (for a smaller unit, actual VFDs are heavier) |
Note: The provided product dimensions (1.18 x 0.79 x 0.79 inches) and weight (1.76 ounces) seem unusually small for a 4KW-7.5KW VFD. These values might refer to a small component or packaging. Please refer to the product's full technical datasheet for accurate physical specifications.
9. 保証とサポート
For warranty information, technical support, or service inquiries, please contact your original point of purchase or the manufacturer, MDWXDOFP. Ensure you have your product model number (SU800) and purchase details available when contacting support.
For additional resources and detailed technical documentation, please visit the official MDWXDOFP webサイトまたは顧客サービス部門に連絡してください。