DS3800DOCA - Digital Output Auxiliary Card

SPECIFICATIONS:

Part Number: DS3800DOCA
Manufacturer: General Electric
Series: Mark IV
Product Type: Digital Output Auxiliary Card
Number of channels: 12
Input Pulse Rate: 10 Hz to 25 kHz
Input Voltage Range: 24 V dc
Operating temperature: -35 to +70°C
Size: 8.25 cm high x 4.18 cm
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

DS3800DOCA is a Digital Output Auxiliary Card manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Control Systems. This card generates digital output signals that command external devices, such as pumps, valves, and cooling systems, enabling precise control over the turbine's operational environment. Facilitating actions like opening or closing valves and starting or stopping auxiliary equipment, it helps maintain optimal operating conditions and ensures safety through effective management of safety interlocks. The card also integrates seamlessly with central control systems, such as programmable logic controllers (PLCs) or distributed control systems (DCS), allowing for coordinated monitoring and decision-making.

FUNCTIONS:

• Control of Auxiliary Devices: The card sends digital signals to control various auxiliary equipment, such as pumps, valves, and cooling systems, which are essential for the proper functioning of the turbine.

• Actuation of Safety Systems: It can activate safety interlocks that shut down or alter turbine operations in response to fault conditions, preventing damage and ensuring safe operation.

• Output Signal Generation: The card generates binary output signals (ON/OFF) that communicate commands to connected devices, facilitating the precise operation of turbine systems.

• Status Monitoring and Feedback: It provides real-time feedback on the status of controlled devices, such as whether a valve has fully opened or closed, which helps maintain operational awareness and ensure system integrity.

• Integration with Control Systems: The card interfaces with central control systems, such as PLCs or DCS, allowing for coordinated control and monitoring of turbine operations and auxiliary systems.

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FREQUENTLY ASKED QUESTIONS:

What types of devices can be controlled by the Digital Output Auxiliary Card?

It can control a variety of auxiliary devices, including fuel valves, feedwater pumps, cooling fans, and any other equipment that requires ON/OFF control in conjunction with turbine operation.

How does the card communicate with the main control system?

The Digital Output Auxiliary Card interfaces with central control systems, such as programmable logic controllers (PLCs) or distributed control systems (DCS), through various communication protocols, allowing for coordinated control and monitoring.

What are the advantages of using digital signals over analog signals in turbine control?

Digital signals are less prone to noise and interference, leading to improved reliability and precision in control commands. They also simplify troubleshooting and maintenance.