DS3800NVIA - Voltage Isolator Board

SPECIFICATIONS:

Part Number: DS3800NVIA
Manufacturer: General Electric
Series: Mark IV
Product Type: Voltage Isolator Board
System Voltage: 12 to 48 volts
Input Voltage Range: 0–10 V DC
Power Supply: 24 V DC
Size: 8.25 cm high x 4.18 cm
Minimum Operating Voltage: 8 volts
Voltage Input Range: 90 – 264 VAC
Frequency: 47 – 63 Hz Voltage Output Range
Operating Temperature: -20°C to +60°C
Mounting Type: DIN Rail Mount
Isolation Voltage: ≥ 2.5 kV
Input Impedance: > 100 k Ohm
DIN Rail Attachment: 35 mm
Repair: 3-7 days
Availability: In Stock
Weight: 0.2 kg
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

DS3800NVIA is a Voltage Isolator Board manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Gas Turbine Control Systems. The Current/Voltage Isolator converts high-level AC or DC and voltage signals into two low-level output signals (0 to ±10 V), which are electrically isolated from the source. This enables safe observation of signal waveforms in power circuits using a standard oscilloscope. The output signals can also serve as feedback inputs in control systems. The current output (I) provides a signal proportional to the input current, while the voltage output (E) reflects the input voltage. Both outputs can operate at the same time. This plug-in module is designed for use with the Model 8840 Enclosure/Power Supply and is automatically powered when inserted.

KEY FEATURES OF THE 4-CHANNEL OPTICAL ISOLATION MODULE:

• Four Independent Optically Isolated Channels: The module provides four channels of optical isolation, each equipped with open-drain outputs. Optical isolation ensures that the input and output circuits are electrically separated, protecting sensitive control systems from voltage spikes, ground loops, and electrical noise.

• Dual Output Configurations per Channel: Each channel offers both non-inverting and inverting outputs, giving users greater flexibility in signal processing. This allows easy adaptation to different logic requirements in control and monitoring applications.

• LED Indicators for Power and Signal Activity: Integrated LEDs provide real-time visual feedback for each input signal and the power status. This feature simplifies diagnostics and troubleshooting during installation and operation.

• Wide Operating Voltage Range (3.3V to 24V): The module supports a broad input voltage range, making it compatible with a variety of logic families, from low-voltage 3.3V logic systems to higher-voltage industrial 24V logic signals.

• Logic Compatibility: Designed to accept input signals from 3.3V up to 24V logic, the module can interface seamlessly with a wide array of digital control systems, PLCs, and microcontrollers.

• Buffered Output Stage: Each channel features a buffered output capable of sinking higher currents, allowing it to drive larger loads or interface with systems requiring more current without compromising signal integrity.

• Built-In Reverse Polarity Protection: To safeguard the module and connected systems, reverse polarity protection is provided on both the input and output sides. This reduces the risk of damage from incorrect wiring during setup.

• Redundant Power and Ground Connections: The terminal blocks include redundant connections for power and ground, enhancing reliability and simplifying wiring, particularly in daisy-chained or distributed system architectures.

• Isolated and Independent Input Channels: All four input channels are electrically and functionally independent, ensuring true isolation between input signals. This is particularly useful when interfacing with multiple devices operating on different grounds or voltages.

• Shared Output Ground and Pull-Up Rail: On the output side, the four channels share a common pull-up voltage rail and ground connection. This simplifies wiring and ensures consistent logic levels across all outputs when using a shared power source.

• Versatile Mounting Options: The module can be installed using rubber feet for desktop use, mounted on panels for fixed installations, or snapped onto DIN rails for integration into industrial control cabinets.

WOC has the largest stock of Replacement Parts for GE Speedtronic Gas Turbine Control Systems. We can also repair your faulty boards and supply unused and rebuilt boards backed up with a warranty. Our team of experts is available around 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 parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What type of isolation is used between input and output channels?

The module uses optocouplers (optical isolators) to achieve galvanic isolation between input and output circuits.

What is the isolation voltage rating between the input and output?

Typical isolation voltage is rated at 2.5 kV RMS (check product datasheet for exact specifications), suitable for most control and monitoring applications.

What is the maximum input current per channel?

Input current typically ranges from 5 to 15 mA, depending on the input voltage and internal LED forward voltage. Current-limiting resistors are used internally.

What is the output type and configuration?

Each output is open-drain (N-channel MOSFET), with a common pull-up rail shared across all channels. The output must be externally pulled up to a desired voltage (max 30V DC, depending on model specs).