Technical Specifications and Board Design
This analog I/O extender board expands signal capacity for GE Mark V turbine systems. The GE DS200TCQFG1A DS200TCQFG1ACC adds additional conditioning channels beyond the base configuration. You can install this board into any standard Mark V rack slot position. Its compact design maximizes I/O density without sacrificing accuracy. The board weighs approximately 0.55 kilograms. Its dimensions measure 28 cm in height, 18 cm in width, and 2.5 cm in depth.
| Parameter | Specification |
|---|---|
| Brand | GE Energy / General Electric |
| Model | DS200TCQFG1A DS200TCQFG1ACC |
| Category | Analog I/O Extender Board / Signal Expansion Card |
| Weight | 0.55 kg |
| Height | 28 cm |
| Length | 18 cm |
| Thickness | 2.5 cm |
| Number of Additional Analog Inputs | 6 differential channels |
| Analog Input Range | ±10V DC or 4-20 mA (jumper selectable) |
| Input Resolution | 14-bit (0.0012V or 0.001 mA) |
| Input Accuracy | ±0.1% of full scale at 25°C |
| Number of Additional Analog Outputs | 4 isolated channels |
| Analog Output Range | 0-10V DC or 4-20 mA (jumper selectable) |
| Output Resolution | 12-bit (0.0024V or 0.004 mA) |
| Output Accuracy | ±0.2% of full scale at 25°C |
| Scan Rate | 15 milliseconds for all channels |
| Isolation Voltage | 1500V DC between field and logic |
| Energy Storage | None (no battery or capacitors) |
| Component Count | Single PCB with ADCs, DACs, op-amps, and isolation circuits |
Input Expansion and Signal Processing
The board adds six differential analog inputs to the existing I/O complement. Each channel includes programmable gain settings for various sensor types. The GE DS200TCQFG1A DS200TCQFG1ACC provides 14-bit resolution for accurate measurements. Built-in filtering removes high-frequency noise from turbine vibration signals. The board shares the main backplane bus with the base I/O card. Consequently, the controller sees all inputs as part of a unified I/O map. A green LED indicates proper communication with the main processor.
Output Expansion and Actuator Control
Four isolated analog outputs expand the system’s actuator control capability. Each output channel drives valves, positioners, or governors directly. The GE DS200TCQFG1A DS200TCQFG1ACC delivers 12-bit resolution for precise positioning. You can configure each output as voltage or current independently. The board includes open-loop detection on all output channels. A red LED illuminates when any output circuit detects a wiring fault. The outputs automatically return to a safe state during communication loss.
Installation and Operational Guidelines
You must insert this board into a dedicated slot next to the main I/O board. The backplane supplies 5V, +15V, and -15V DC power automatically. The GE DS200TCQFG1A DS200TCQFG1ACC draws approximately 200 mA from the 5V supply. It draws an additional 80 mA from each of the ±15V rails. You must use shielded twisted-pair cables for all analog connections. This practice prevents electrical noise from corrupting low-level signals. The board stores no configuration data independently. Therefore, the turbine controller retains all scaling and calibration values.
Details
| Weight | 0.45 kg |
|---|---|
| Dimensions | 254 × 178 × 5 mm |
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