Overview
The GE IS200VAICH1DAA, also cataloged as the IS200VAICH1D VME Analog Input Board, operates as a dedicated hardware component for analog signal acquisition within the GE Mark VI turbine control system. The board processes contact input group signals through isolated terminal interfaces and converts field inputs using a 16-bit A/D converter with 14-bit resolution.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200VAICH1DAA / IS200VAICH1D |
| Brand | General Electric (GE) |
| Product Type | VME Analog Input Board |
| System Platform | Mark VI Turbine Control System |
| Origin | USA |
| Weight | 0.36 kg |
| Dimensions | 2.1 x 18.8 x 26.2 cm |
| Input Channels | 24 channels per VAIC board |
| Input Function | Analog signal acquisition and conversion |
| A/D Converter | 16-bit converter with 14-bit resolution |
| Terminal Interface | Isolation terminal board interface |
| Tariff Code | 8537101190 |
| Shipment Location | Xiamen, China |
Backplane Bus Communication and I/O Density Scaling
The GE IS200VAICH1DAA uses the Mark VI VME hardware architecture to handle analog input acquisition and system data exchange. The board supports high-density analog input deployment with 24 channels per VAIC assembly. Furthermore, the module architecture allows distributed signal processing through the VME backplane communication structure.
The analog conversion circuit receives field signals through the isolation terminal board and transfers digitized data to the control processor. In addition, the 16-bit A/D conversion design provides internal signal sampling capability with 14-bit effective resolution for turbine monitoring applications.
Frequently Asked Questions
Q: What is the primary function of the IS200VAICH1DAA board?
A: The IS200VAICH1DAA functions as a VME analog input board that acquires field analog signals and converts them into digital data for the Mark VI control system.
Q: How many input channels does the VAIC board provide?
A: The VAIC board provides 24 analog input channels per board assembly.
Q: Does the IS200VAICH1DAA require an isolation terminal board?
A: Yes. The module operates with an isolation terminal board interface to support field signal connection and electrical separation.
Field Installation Guidelines
- Install the IS200VAICH1DAA only in the designated GE Mark VI VME rack position.
- Verify connector alignment before insertion to prevent damage to the VME interface contacts.
- Maintain proper cable separation between analog signal wiring and high-current power conductors to reduce electrical interference.
- Connect field cable shields according to the control system grounding design and avoid multiple grounding points that may create ground loops.
- Inspect terminal board wiring before applying system power.
- Confirm channel assignments in the Mark VI configuration database before commissioning the analog input channels.
