ABB ACS880-34-650A-3

**ABB ACS880-34-650A-3** is a high-power, modularly designed industrial AC drive frequency converter, belonging to ABB's flagship ACS880 series.  
### Core Summary  
This is a **650-ampere, 400V voltage-level** frequency converter designed for demanding industrial applications. It adopts a "cabinet-type" or "modular" design, requiring users to install it in a customized electrical control cabinet based on their needs (such as circuit breakers, cooling methods, I/O quantity, etc.).  
### Model Analysis  
Key parameters can be intuitively understood through its model:  
*   **ACS880**: Series name, representing ABB's new generation of fully compatible drive products.  
*   **-34**: Product type code, referring to modular (cabinet-mounted) industrial drives.  
*   **-650A**: Rated output current, **650 amperes**. This is its most core parameter.  
*   **-3**: Power supply voltage level. **"3" represents the 400V class** (i.e., suitable for standard three-phase 380V/400V/415V/440V power grids). If it were "4," it would represent the 690V class.  
### Main Features and Advantages  
1.  **Excellent Performance and Control Precision**:  
    *   Utilizes **Direct Torque Control (DTC)** technology, providing extremely high torque accuracy and speed control precision with fast dynamic response.  
    *   Even in open-loop mode without encoder feedback (standard), it delivers outstanding motor control performance. An encoder interface card can be optionally equipped for more precise closed-loop control.  
2.  **Modularity and Flexibility**:  
    *   The ACS880-34 is a "core unit" or "power module," allowing users or system integrators to configure peripheral components with great flexibility.  
    *   Freely optional components include: **main circuit breaker/contactor, line reactor, EMC filter, I/O extension card, fieldbus adapter module, encoder interface card, braking chopper**, etc.  
    *   This design enables perfect adaptation to various complex application scenarios and communication requirements.  
3.  **High Reliability and Robustness**:  
    *   Designed for harsh industrial environments, with high resistance to impact and vibration.  
    *   Built-in **du/dt reactor** or optional output filter effectively protects motor insulation and extends motor life, especially suitable for long cable transmission or older motors.  
    *   Powerful protection functions, such as overcurrent, overvoltage, undervoltage, overheating, short circuit, and ground fault protection.  
4.  **Comprehensive Safety Functions**:  
    *   Integrated **Safe Torque Off (STO)** function, meeting SIL 3/PL e safety等级. This is a critical safety feature that prevents accidental starting, protecting equipment and personnel. It achieves this without additional safety relays.  
5.  **Powerful Connectivity**:  
    *   Supports all mainstream industrial fieldbuses and network protocols, such as **PROFIBUS DP, PROFINET, Modbus RTU/TCP, EtherNet/IP, CANopen**, etc. (implemented by purchasing corresponding adapter modules).  
    *   The standard **control panel** (Assistant control panel) features an intuitive graphical interface and built-in help functions, making debugging, monitoring, and maintenance very simple.  
6.  **Energy Efficiency**:  
    *   Utilizes advanced IGBT technology and optimized control algorithms, resulting in very low inherent losses.  
    *   The built-in **energy optimizer** function automatically minimizes energy loss during partial load operation, significantly saving electricity.  
    *   Supports regenerative energy feedback options (AFE - Active Front End), which can feed braking energy back to the grid, achieving maximum energy savings.  
### Technical Parameters (Summary)  
*   **Output Current**: 650 A  
*   **Rated Power**: Approximately **400 kW / 500 HP** (at 400V, specific power depends on the motor) 
*   **Supply Voltage**: 3-phase, 380V - 415V ±10%, 50/60 Hz  
*   **Cooling Method**: Typically **forced air cooling** (internal cooling fans installed)  
*   **Protection Rating**: As a module itself, typically IP00 (no protection). After installation into a control cabinet, the final protection rating is determined by the cabinet (common ratings are IP21, IP22, IP54, etc.).  
### Typical Applications  
Due to its powerful performance and robust design, the ACS880-34-650A-3 is commonly used to drive large motors in heavy industries, such as:  
*   **Mining Machinery**: Large crushers, ball mills, conveyor belts  
*   **Metal Industry**: Rolling mills, winders, large fans and pumps  
*   **Pulp and Paper**: Pulpers, paper machines  
*   **Port Cranes**: Gantry cranes, quay cranes  
*   **Water Treatment**: Large water pumps  
*   **Chemicals and Oil & Gas**: Compressors, large pumps  
### Summary  
The **ABB ACS880-34-650A-3** is not just a simple frequency converter; it is the core of a **highly customizable, powerful, safe, and reliable** industrial drive solution. It represents ABB's cutting-edge technology in motor control and is suitable for heavy industrial applications with extremely high requirements for drive performance, reliability, and functionality. Its modular design allows engineers to "tailor" a perfect control system for it.  

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