DS200UPLAG1B - Power Supply/LAN Interface Board

SPECIFICATIONS:

Part Number: DS200UPLAG1B
Manufacturer: General Electric
Product Type: Power Supply/LAN Interface Board
Function: Power Supply Board
Series: EX2000
Number of channels: 6
Input Frequency Range: 47 to 63Hz
Rated Output Voltage: 375Vdc
Input Voltage Range: 85 to 265Vac
Output Voltage: 0 to 375Vdc
Operating temperature: -30 to 65 °C
Output Current: 0 to 2.2A
Size: 26.41 cm High x 21.33 cm
Availability: In Stock
Repair: 3 to 7 Working Days
Country of Origin: United States
Manual: GEH-6120B

FUNCTIONAL DESCRIPTION:

DS200UPLAG1B is a Power Supply/LAN Interface Board designed and manufactured by General Electric as a part of the EX2000 series used in the excitation control systems. A Power Supply/LAN Interface Board is a multifunctional electronic component that combines power management and network communication capabilities. These boards are widely used in industrial automation, telecommunications, and embedded systems, where both reliable power distribution and seamless data communication are critical. By integrating power conversion circuits with LAN (Local Area Network) connectivity, these boards enable efficient operation of networked devices while ensuring stable power delivery. They are commonly found in power plants, industrial control systems, and advanced networking equipment. The function of the UPLA card is the power supply for the OC2000 operator interface module. The major hardware components of the UPLA board are

• 115/230 VAC, 50/60 Hz +/- 24 V and 5 V switching power supply.
• Power - ON reset and 5 V under voltage detect
• Microprocessor core
• Flash (Non-volatile) memory capability
• DLAN + interface port
• RS-232C serial port
• Two 8-bit configuration DIP switches

The LAN interface allows real-time communication between the excitation system and the plant's control or SCADA (Supervisory Control and Data Acquisition) system. Through Ethernet-based protocols like Modbus TCP/IP, IEC 61850, or DNP3, operators can remotely monitor voltage levels, field current, and system diagnostics. This remote accessibility enhances operational efficiency by enabling predictive maintenance, reducing downtime, and allowing for quick troubleshooting of system issues.

FUNCTIONS OF POWER SUPPLY/LAN INTERFACE BOARD:

• Power Supply/LAN Interface Board: The excitation control systems perform several crucial functions that ensure reliable power management, seamless communication, and efficient system operation. These boards integrate both power regulation and network connectivity, making them essential for maintaining stable generator excitation and facilitating remote monitoring in power plants.

• Power Supply Regulation: where it converts AC or DC input power into the necessary voltage levels required by various excitation system components. It provides stable and regulated DC power to key elements such as voltage regulators, control circuits, and sensors. To ensure reliability, the board is equipped with built-in protection mechanisms, including overvoltage, overcurrent, and short-circuit protection, which safeguard critical components from damage due to electrical fluctuations.

• Network Communication via LAN: This enables real-time data exchange between the excitation system and the plant’s control network. Using Ethernet connectivity, the board facilitates integration with SCADA systems and other automation platforms through industrial communication protocols like Modbus TCP/IP, IEC 61850, or DNP3. This allows plant operators to remotely monitor and control excitation parameters, reducing the need for on-site intervention and improving overall system efficiency.

• Data Acquisition and Monitoring: By continuously collecting and transmitting key operational parameters such as field voltage, field current, and system status. This data is essential for predictive maintenance, as it helps detect abnormal conditions before they lead to failures. Additionally, many boards feature LED indicators or provide data visualization through SCADA systems, allowing operators to track system health and performance in real-time.

WOC has the largest stock of GE Excitation Control System Replacement Parts. We can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What is the primary function of a Power Supply/LAN Interface Board in excitation control systems?

The board provides regulated power to excitation system components while enabling real-time network communication for remote monitoring and control. It ensures a stable voltage supply, supports Ethernet-based communication, and integrates with SCADA and automation systems.

What type of power input does the board support?

Most boards accept AC (e.g., 110V/220V) or DC (e.g., 24V/48V) power inputs, depending on the system requirements. They include voltage regulators to provide stable DC outputs for excitation controllers, sensors, and auxiliary components.

How does the LAN interface contribute to excitation system operation?

The LAN interface allows the excitation system to communicate with the plant’s control network via Ethernet. It supports industrial communication protocols like Modbus TCP/IP, IEC 61850, and DNP3, enabling remote monitoring, diagnostics, and control.