Why This Analog Input Card Captures Process Signals Accurately
The GE IS200VAICH1D IS200VAICH1DAB converts analog sensors to digital values for Mark V control. This card interfaces with pressure, temperature, and flow transmitters. It provides high-resolution measurement for critical turbine parameters. For this reason, the GE IS200VAICH1D IS200VAICH1DAB enables precise control of fuel and steam inputs. It also filters electrical noise from field sensor wiring.
Technical Specifications of the Card
We engineer this GE IS200VAICH1D IS200VAICH1DAB for accurate signal conversion. It operates on a 5V DC supply from the VME backplane. The card features sixteen single-ended analog input channels. Each channel includes a programmable gain amplifier for signal scaling. On‑board capacitors provide energy storage for filtering stages.
| Specification | Value | Additional Notes |
|---|---|---|
| Full Model | GE IS200VAICH1D IS200VAICH1DAB | VME Analog Input Card |
| Power Supply | 5V DC ±5% | From VME backplane |
| Analog Inputs | Sixteen single-ended channels | 0‑10V or 4‑20mA selectable |
| ADC Resolution | 16‑bit per channel | 65536 count resolution |
| Input Range | ±10V, 0‑10V, or 4‑20mA | Software configurable per channel |
| Sampling Rate | 100kHz aggregate | For all channels combined |
| Accuracy | ±0.1% of full scale | At 25°C ambient |
| Filtering | Programmable digital filter | Removes 50/60Hz noise |
| Energy Storage | Capacitor bank | 470µF for stable ADC reference |
| Dimensions | 6U x 160mm x 233mm | Standard VME form factor |
| Weight | 0.68 kg (approximately) | Standard VME module weight |
| Interface Type | VME backplane + front panel | 96-pin DIN connector |
| Component Count | 118 discrete components | ADCs, op-amps, capacitors, resistors |
Hardware Architecture and Signal Processing
The GE IS200VAICH1D IS200VAICH1DAB includes a 16-bit successive approximation ADC. This converter scans all sixteen channels sequentially. Moving to input side, programmable gain amplifiers match sensor ranges to ADC input. The card then stores converted values in dual-port memory for VME access. Moreover, the DAB revision adds enhanced common-mode noise rejection. This improvement maintains accuracy in electrically noisy turbine rooms.
Installation and Configuration Guidelines
You must de‑energize the VME rack before removing this card. Remove the GE IS200VAICH1D IS200VAICH1DAB from its VME slot carefully. Then insert the replacement card into the exact same slot position. Verify all backplane pins align correctly with the connector. Skipping this step may cause incorrect scaling factors. Additionally, reconfigure input ranges using the maintenance software after installation.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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