1. Product Overview

2. Technical Specifications

3. Product Features

3.1 Core Functions

• De-Excitation Control: Realizes high-precision demagnetization through Silicon Controlled Rectifier (SCR) to ensure safe shutdown of excitation equipment.
• Conduction Induction Feedback: Equipped with Hall-effect conduction sensors to accurately detect the magnetic field generated by thyristor current, realizing real-time operating status monitoring.
• Voltage Holding Function: Maintains normal equipment operation temporarily in case of power failure, avoiding sudden shutdown failures.
• Overcurrent Protection: Integrates overload, overvoltage and short-circuit protection mechanisms to effectively protect the module and the whole system.
• Excitation Trigger Control: Supports SCR de-excitation ignition control to ensure stable switching of the excitation system.

3.2 Product Advantages

• High Reliability: Adopts industrial-grade electronic components, which can adapt to harsh and complex power operation environments.
• Easy Maintenance: Modular integrated design simplifies on-site installation, disassembly and daily maintenance procedures.
• Durable Structure: Premium aluminum alloy housing provides excellent anti-corrosion and anti-collision performance for harsh working conditions.
• Intelligent Operation: Built-in automatic adjustment and monitoring modules to realize intelligent operation of the excitation system.
• Alarm Reminder Function: Equipped with sound alarm device, which can promptly remind operators of system abnormal faults.

4. Structure and Composition

4.1 Internal Structure

• Hall-effect conduction sensor
• SCR (Silicon Controlled Rectifier) assembly
• Voltage holding circuit
• Overcurrent protection device
• D-Sub connector interface

4.2 System Matching Components

• EXTB Board: Specialized for controlling the operating status of the EDEX module.
• ESPM Module: Provides 24VDC power input and realizes conversion to 125VDC output.
• EMIO Board: Essential matching board for system linkage operation.

5. Application Fields

5.1 Power Generation Industry

5.2 Other Industrial Fields

6. Installation and Maintenance

6.1 Installation Precautions 

• Ensure the installation environment meets the standard operating temperature range of -10℃ to 50℃.
• Verify that the input voltage is consistent with the rated specification (110/220V AC) before installation.
• Use standard D-Sub connectors for wiring and ensure all connections are firm and reliable.
• Arrange the module in a well-ventilated position to avoid long-term operation in high-temperature environments.

6.2 Usage Precautions 

• Check whether the output voltage meets the equipment requirements before connecting the load.
• Confirm correct input voltage and error-free wiring to avoid module damage.
• The module does not support DC input and parallel operation is not recommended.
• Cut off the power supply and store the module in a dry environment if it is not in use for a long time.

6.3 Maintenance Key Points

• Regularly inspect the operating status of the module to ensure stable system operation.
• Keep the housing clean to guarantee good heat dissipation performance.
• Periodically check connectors and wiring terminals for looseness or aging.
• Monitor the operating temperature in real time to ensure it is within the allowable range.
• Trigger alarm processing and shut down the equipment for inspection immediately once abnormal conditions are found.