ABB DDC779BE02 3BHE006805R0002 12-Pulse Firing Board.ABB DDC779BE02 3BHE006805R0002 is a 12-pulse firing board applied to industrial automation and power control systems.
Core Functions and Upgraded Features
12-Pulse Firing Technology
Utilizes 12-phase rectification technology to effectively reduce grid harmonics (Total Harmonic Distortion <5%), fully complying with IEEE 519 standards.
Supports dual-bridge series control architecture, significantly enhancing the operational efficiency of high-voltage DC systems (typical application voltage range: 6kV-10kV).
Intelligent Protection Mechanism
Real-time monitoring of key IGBT/SCR parameters, including temperature anomalies, voltage imbalance, and pulse loss (detection accuracy for trigger signal loss: tolerance <1μs).
Automatically locks out and accurately reports error codes (e.g., F801: Pulse Sequence Error) in the event of a trigger fault.
Compatibility Expansion
Deeply compatible with ABB ACS 1000 series inverters (requires firmware version ≥V3.5).
Equipped with fiber optic interfaces for direct high-speed communication with ABB Advant Controller 100 series PLCs.
Data Sheet
PCS6000 3BHS600000 Service manual.pdf
| Hardware Configuration and Wiring Specifications | ||
| Interface Type | Function Description | Wiring Requirements |
| X1 (Fiber Optic) | Communication with the main control unit (data transmission rate: 2Mbps) | Use ABB-specific 62.5/125μm multimode optical fiber Ensure fiber connectors are clean to avoid signal attenuation |
| X2 (Power Supply) | 24V DC input (redundant design) | Dual independent power supplies for redundancy backup Cable diameter ≥ 1.5mm² Securely connect positive and negative terminals to avoid short circuits |
| X3 (Pulse Output) | 12-channel trigger pulse output (maximum drive current: 2A) | Use shielded twisted-pair cables to reduce electromagnetic interference Cable length ≤ 3m Tighten terminal connections to prevent poor contact |
| X4 (Feedback) | Status signal feedback (including Ready/Bypass signals) | Transmit signals via relay dry contacts Load capacity: 24V/1A Recommended independent wiring to avoid mixing with high-voltage cables |
Product Parameters
Input Voltage: 24V DC, supporting a fluctuation range of ±20%.
Operating Temperature Range: -40°C to +85°C, ensuring stable operation in extreme environments.
Dimensions: Common size is 48×48×110 mm, though other dimensions (such as 48×88×125 mm) are mentioned in some specifications.
Communication Interfaces: Supports multiple communication protocols, including Ethernet, Modbus RTU, Profibus DP, etc., facilitating communication and data exchange with other devices.
I/O Capabilities:
Analog input/output (e.g., 0-20mA or 4-20mA).
Digital input/output (e.g., relay output).
Pulse input.
Processing Power: Equipped with a high-performance processor to quickly handle large volumes of data and support complex control algorithms and logic.
Protection Level: IP20 (suitable for general industrial environments), while higher protection levels (such as IP65) are mentioned in some sources.
Application Scenarios
This module is widely used in industrial automation, robot control, process control systems, and other fields, meeting the stringent requirements of industries such as petroleum, chemicals, power, and manufacturing. Its modular design and high reliability make it a core component in industrial automation systems.
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