The GE IS200EDFFH1A IS200EDFFH1ABA fanned feedback board monitors multiple feedback signals for Mark VI systems. This board collects analog data from position transducers and speed sensors. You will find this feedback board in Speedtronic Mark VI turbine control cabinets. Its high-density design packs sixteen analog inputs into a single slot.
Feedback Architecture
This fanned feedback board provides sixteen single-ended analog input channels. Consequently, it monitors many feedback devices without multiple boards. The GE IS200EDFFH1A IS200EDFFH1ABA accepts voltage signals from LVDTs and resolvers. Moreover, built-in filters remove high-frequency noise from feedback signals. You can connect standard transducers without external signal conditioners.
Technical Specifications
| Parameter | Value |
|---|---|
| Input Channels | 16, single-ended |
| Input Voltage Range | 0-10V DC, ±10V DC (selectable) |
| Resolution | 12-bit (4096 counts) |
| Accuracy | ±0.2% of full scale |
| Input Impedance | 100 kΩ |
| Sampling Rate | 500 Hz per channel |
| Input Voltage | 24V DC ±10% |
| Power Consumption | 5W typical |
| Dimensions | 220mm x 160mm x 25mm |
| Weight | 0.48 kg (1.06 lbs) |
| PCB Layers | 6 |
| Onboard Components | 1 ADC, 16 filters, 16 protection circuits, 1 reference |
| Connector Count | 3 (field input, backplane, status) |
| Status Indicators | 1 LED (power good) |
| Energy Storage | 470 µF (input filtering) |
| Isolation Voltage | 1500V (field to logic) |
| Frequency Response | DC to 100 Hz (-3 dB) |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +70°C |
Signal Filtering and Input Protection
The unit includes low-pass filters on all sixteen input channels. Therefore, it rejects vibration-induced noise from turbine feedback signals. This board replaces the IS200EDFFH1ABA version without any calibration changes. Simply remove the old board and install this one. GE designed this feedback board for single-slot installation. Hence, it fits directly into existing Mark VI rack positions.
Six PCB layers separate analog signal traces from digital and power lines. Three connectors handle all field, backplane, and status signals. The GE IS200EDFFH1A IS200EDFFH1ABA includes input protection clamping diodes on each channel. Accordingly, it survives accidental overvoltage without damage. This feature protects the board during field wiring mistakes.
Calibration and Installation Guide
You must perform a factory calibration after installing this board. The onboard precision reference ensures measurement consistency. The GE IS200EDFFH1A IS200EDFFH1ABA stores calibration constants in non-volatile memory. Consequently, it retains settings even after power loss. A single green LED indicates that the board has power.
Always use shielded twisted-pair cable for feedback sensor wiring. Connect the shield only at the board end for best noise rejection. The GE IS200EDFFH1A IS200EDFFH1ABA works with LVDTs, resolvers, and potentiometers. Proper grounding of analog commons prevents ground loop errors. This board operates reliably in non-condensing environments only.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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