IS200VATFG1A - Voltage Attenuator Feedback Board

SPECIFICATIONS:

Part Number: IS200VATFG1A
Manufacturer: General Electric
Series: Mark VI
Product Type: Voltage Attenuator Feedback Board
Input Voltage Range: 0 to 250 VAC
Output Voltage Range: 0 to 5V
Input Impedance: ≥ 1 M Ohms
Output Impedance: ≤ 100 Ohms
Accuracy: ±0.5%
Attenuator Input: 700 V Peak
Power supply voltage: 28 V DC
Signal Type: DC
Technology: Surface mount
Operating temperature: 0 to +45°C
Size: 15.9 cm high x 17.8 cm
Weight: 0.8kg
Repair: 3-7 days
Availability: In Stock
Country of Origin: United States
Manual: GEI-100294

FUNCTIONAL DESCRIPTION OF IS200VATFG1A :

IS200VATFG1A is a Voltage Attenuator Feedback Board designed and manufactured by General Electric as part of the Mark VI Series used in GE Speedtronic Drive Control Systems. The Voltage Attenuator Feedback Board is an electronic interface used to scale down high-voltage input signals to a lower, measurable level suitable for control systems. It utilizes precision resistive dividers and filtering components to ensure accurate signal attenuation without distortion. The board is designed to handle specific voltage ranges and provides an output compatible with analog-to-digital converters and monitoring devices. Isolation components may be included to separate high-voltage circuits from low-voltage control systems, enhancing safety and preventing signal interference. The board is used in applications such as turbine control, industrial automation, and motor drive systems that require voltage feedback for monitoring or control.

The primary objective of the VATFG1A card is to sample high-level electrical voltages from active power processing or load circuits and scale them down safely via precision attenuation networks. This provides safe, low-voltage feedback signals that can be read differentially by primary control microprocessors and core I/O boards without exposing delicate digital logic to high-voltage surges or electrical noise. The board forms an essential diagnostic interface for real-time voltage monitoring, helping to ensure smooth system loop performance and precise power control.

INSTALLATION:

The board is in a suitable enclosure, typically using DIN rails or standoffs. Power must be completely disconnected before installation. High-voltage inputs are connected to the designated input terminals, following the specified polarity and voltage limits. The attenuated output is connected to the input terminals of the receiving system. Signal cables should be shielded and grounded as required to prevent electromagnetic interference. If auxiliary power is required (e.g., ±15VDC or 24VDC), connections must be made according to the manufacturer’s wiring specifications. Proper torque should be applied to all terminal connections to ensure secure and reliable operation.

OPERATION:

The board receives a high-voltage analog signal and outputs a scaled-down version that corresponds proportionally to the input. The attenuation factor is fixed and determined by the internal resistor network. The output signal is designed to match the voltage input range of the control or monitoring equipment. The board operates continuously, with minimal internal power consumption unless active components are included. In systems with built-in protection features, the board can suppress transient voltage spikes or disconnect output in overvoltage conditions. Accurate signal representation is maintained throughout the board’s specified operating range.

COMPATIBILITY:

The Voltage Attenuator Feedback Board is compatible with industrial control systems that require analog voltage feedback within a defined input range (e.g., 0–5V, 0–10V). It is suitable for integration with turbine control systems, including GE Mark V, Mark VI, and Mark VIe platforms, as well as other systems using PLCs or data acquisition modules. Compatibility is determined by matching the input voltage range, output scaling, impedance, and connector type with system requirements. The board may be used in both new and existing installations, provided all electrical and mechanical interface parameters are satisfied.

World of Controls maintains one of the largest inventories of replacement parts for GE Drive Control Systems, offering a wide range of unused and rebuilt components to support critical industrial applications. All supplied components undergo quality checks and are backed by warranty to ensure reliable performance and customer confidence. In addition to component supply, our experienced engineering team provides professional repair, refurbishment, and testing services for malfunctioning GE control boards and modules. With 24/7 support from our automation specialists, WOC delivers fast and dependable assistance for OEM requirements, including parts sourcing, repair solutions, and technical guidance. Our commitment is to provide reliable products, expert service, and timely support to help minimize equipment downtime and maintain operational efficiency.

FREQUENTLY ASKED QUESTIONS:

What is GE IS200VATFG1A?

The GE IS200VATFG1A is a Voltage Attenuator Feedback Board manufactured by General Electric for the Mark VI Speedtronic Drive Control System. It is designed to safely reduce high-voltage feedback signals into low-voltage analog signals that can be processed by the control system for monitoring and regulation.

How does the Voltage Attenuator Feedback Board reduce high-voltage signals?

The Voltage Attenuator Feedback Board uses precision resistor divider networks to reduce high-voltage input signals to lower, proportional voltage levels that can be safely processed by the control system. This attenuation maintains the original signal characteristics while protecting sensitive electronic components.

What types of input and output voltage ranges are typically supported?

Input voltage ranges vary by design and may include levels such as 0–250V, 0–500V, or higher. Output voltage is typically scaled to standard analog ranges such as 0–5V or 0–10V, depending on the attenuation ratio.

Can the board be used for both AC and DC signals?

Yes, depending on the design. Some boards support both AC and DC input signals, while others are optimized for one type only. It is important to check the datasheet for signal type compatibility and frequency response characteristics.

Does the board support high-frequency signals or AC signals?

Some models of the Voltage Attenuator Feedback Board may be designed to handle both DC and AC signals, including high-frequency AC signals. However, the frequency range supported depends on the design, including filter characteristics and component selection. Verify frequency specifications in the datasheet.