General Electric IS200VAICH1DBC Mark VI VME Analog Input Card

Description

The IS200VAICH1DBC functions as an VME Analog Input Card developed by General Electric as an integral component of the Mark VI control system. This VME board is engineered to process large volumes of instrumentation signals, accepting up to 20 analog inputs and regulating 4 analog outputs across critical industrial processes. Deployed within a VME rack structure, the board routes digitized real-time sensor measurements over the VME backplane framework to the system controller, permitting precise monitoring and closed-loop control interface execution.

The IS200VAICH1DBC features full structural support for both simplex and Triple Modular Redundant (TMR) operational layouts. In a high-reliability TMR network setup, field signals are distributed across three separate racks each housing an individual analog card, utilizing integrated voting and diagnostic check monitoring circuits to maintain precise current outputs even during single hardware board faults. In simplex layouts, the assembly acts as the sole processing path handling input scaling and output current tracking for the connected application loop.

Features

• Multi-Channel Instrumentation Density: Provisions 24 independent channels optimized to balance multi-point monitoring constraints within central process frames.
• Flexible Dual-Redundancy Configurations: Operates seamlessly across simplex architectures or fault-tolerant Triple Modular Redundant (TMR) architectures with automatic isolation control.
• Elevated Output Driving Potential: Engineered with upgraded drive circuitry providing up to 18 V at the external terminal screw contact paths.
• Extended Load Signal Balancing: Supports operation into higher impedance circuits with a maximum load handling capability of up to 800 ohm.
• Onboard Hardware Interrogation: Interacts with the local terminal card ID device to run automatic mismatch checking routines, creating immediate system faults upon detecting technical hardware conflict.

Applications

• Mark VI central VME control rack instrumentation inputs
• High-density analog monitoring and actuator drive management
• Fault-tolerant Triple Modular Redundant (TMR) control systems

Technical Specifications

Terminal Board Compatibility

To ensure optimal integration, this generation of the Analog Input Card requires specific terminal interface cards. Compatible terminal configurations include:

• TBAIH1C or later revised terminal versions
• Any functional revision of the STAI terminal board assembly

Installation Guidelines

• VME Rack Alignment: Slide the card assembly firmly into its targeted slot inside the VME chassis enclosure, ensuring full engagement with the VME backplane pins prior to securing panel screws.
• Terminal Interface Connection: Connect robust interface cables from the VME rack directly to the compatible TBAIH1C or STAI terminal boards to ensure uncorrupted signal paths.
• Wiring Configurations: When executing extended load operations up to 800 ohm, pair the circuit installation with up to 1000 ft of #18 wire to secure reliable operational margins.