The General Electric IS200VAOCH1C, also cataloged as the IS200VAOCH1C VME Analog Input Card, operates as a dedicated hardware component for high-precision sensor signal acquisition within VME-based turbine control platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200VAOCH1C |
| Brand | General Electric |
| Origin | USA |
| Weight | 0.36 kg |
| Dimensions | 2.1 cm x 18.8 cm x 26.2 cm |
| Operating Temp | 0 deg C to 60 deg C |
| Power Consumption | System-dependent |
| Bus Interface | VME bus |
Backplane Bus Communication and Firmware Compatibility
The IS200VAOCH1C facilitates the conversion of field-side analog signals into digital data for the VME backplane bus. It supports high-speed backplane bus communication velocity, ensuring that sampled data is available to the CPU with minimal interrupt latency. Firmware flash compatibility is managed via the VME controller interface, allowing for periodic updates to the signal filtering algorithms and calibration tables. The card utilizes differential signal input architecture to maintain high common-mode rejection ratios, ensuring that analog data remains clean despite the electromagnetically noisy environment of a power cabinet.
Frequently Asked Questions
Q: Does this card require manual calibration for 4-20 mA inputs?
A: The card is designed for high-accuracy digital calibration. Routine span and zero adjustments are typically handled via the control system software rather than physical potentiometers on the board.
Q: Is this card compatible with other VME backplane architectures?
A: The card is specifically engineered for the GE VME architecture utilized in Mark series control systems. Ensure the slot configuration and backplane power rails are compatible before installation.
Field Installation Guidelines
- Verify that the VME rack is de-energized or the specific slot is isolated before attempting card installation.
- Align the card with the card cage guides to prevent damage to the high-density VME edge connectors.
- Insert the card into the slot until the connectors fully engage with the backplane; use the extraction levers to pull the card firmly into the seated position.
- Secure the front panel mounting screws to the rack frame to ensure structural grounding and prevent the card from vibrating loose.
- Ensure all analog input cables are terminated correctly on the corresponding terminal blocks and that shields are properly grounded to the cabinet chassis to prevent ground-loop interference.
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