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The GE DS200TCCAG2A DS200TCCAG2AJB analog board handles precision signal processing for GE Mark V control systems. This board converts field sensor signals into digital data for the main controller. You will find this analog board in turbine control cabinets and drive panels. Its high-resolution design ensures accurate measurement of critical process variables.
Input Architecture and Signal Conversion
This analog board provides eight single-ended analog input channels. Consequently, it accepts signals from a wide variety of field sensors. The GE DS200TCCAG2A DS200TCCAG2AJB offers both voltage and current input options per channel. Moreover, a 16-bit ADC delivers high measurement resolution for precise control. You can configure each channel independently via software.
Technical Specifications
| Parameter | Value |
|---|---|
| Input Channels | 8, single-ended, 16-bit resolution |
| Input Ranges | 0-10V, ±10V, 0-20mA, 4-20mA (selectable) |
| Output Channels | 4, 0-10V or 4-20mA, 12-bit resolution |
| Accuracy | ±0.05% of full scale (inputs), ±0.1% (outputs) |
| Input Impedance | 1 MΩ (voltage mode), 250 Ω (current mode) |
| Sampling Rate | 200 Hz per channel |
| Dimensions | 230mm x 170mm x 30mm |
| Weight | 0.62 kg (1.37 lbs) |
| PCB Layers | 6 |
| Onboard Components | 1 ADC, 4 DACs, 12 op-amps, 8 filters, 1 reference |
| Connector Count | 3 (field I/O, backplane, calibration) |
| Status Indicators | 2 LEDs (active, fault) |
| Energy Storage | 2200 µF (analog supply filtering) |
| Isolation Voltage | 1500V (field to logic) |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +70°C |
Output Channels and Signal Filtering
The unit includes four analog output channels for actuator control. Therefore, it can directly drive valves, positioners, and recorders. This board replaces the DS200TCCAG2AJB version without any calibration changes. Simply remove the old board and install this one. GE designed this analog board for single-slot installation. Hence, it fits directly into existing Mark V rack positions.
Six PCB layers separate analog and digital signal paths effectively. Three connectors handle all field wiring and backplane communication. The GE DS200TCCAG2A DS200TCCAG2AJB also includes programmable low-pass filters on each input. Accordingly, it rejects high-frequency noise from industrial environments. This feature ensures stable readings from thermocouples and transmitters.
Calibration and Field Wiring Guide
A precision voltage reference on the board enables accurate self-calibration. The board stores calibration constants in non-volatile memory. The GE DS200TCCAG2A DS200TCCAG2AJB retains all settings even after power loss. Two status LEDs indicate board health and communication activity. You can monitor board status without external tools.
Always use shielded twisted-pair cable for analog input wiring. Connect the shield only at the board end for best results. The GE DS200TCCAG2A DS200TCCAG2AJB works with all GE Mark V control systems. Proper grounding of analog commons prevents ground loop errors. This board operates reliably in non-condensing environments only.