Product Overview
This attenuation module conditions feedback signals from brushless exciter systems. You can install GE IS200EXAMG1B IS200EXAMG1BAA directly into GE Mark VIe exciter racks. The unit scales high-voltage exciter outputs down to safe ADC input levels. It protects downstream control circuits from voltage spikes and transients.
Technical Specifications
| Parameter | Value |
|---|---|
| Dimensions (W x H x D) | 180 mm x 105 mm x 25 mm |
| Weight | 0.35 kg |
| Number of analog inputs | 4 differential voltage channels |
| Input connector type | 10-position screw terminal block |
| Interface to controller | 50-pin ribbon cable to EXAM card |
| Input voltage range | 0 to 300V AC or DC |
| Output voltage range | 0 to 10V DC (scaled) |
| Attenuation ratio | 30:1 (fixed resistor divider) |
| Total onboard components | 72 discrete parts |
| Energy storage type | Ceramic and film capacitors |
| Energy storage rating | 150 µF at 100V DC |
| Input impedance | 1 MΩ per channel |
| Operating temperature | -30°C to +65°C |
Board Layout and Components
The PCB routes each analog channel through precision resistor divider networks. Four independent attenuation circuits provide 30:1 scaling for exciter feedback. Moreover, 72 discrete components include transient suppression diodes and filtering capacitors. Ceramic capacitors handle high-frequency noise cancellation effectively. Consequently, the ADC receives clean, scaled signals for regulation.
Installation Process
You can mount GE IS200EXAMG1B IS200EXAMG1BAA on standard 35 mm DIN rails. The 50-pin ribbon cable connects directly to the EXAM exciter analog module. Furthermore, each screw terminal accepts 16–24 AWG shielded instrument wire. Clearly labeled channel markings prevent wiring errors during field installation.
Performance Advantages
This module maintains attenuation accuracy within ±0.1% across the full range. Transient suppression clamps voltage spikes below 15V at the output. Therefore, the downstream ADC never sees damaging overvoltage conditions. The passive design also requires no external power for operation.
Safety and Compliance
GE IS200EXAMG1B IS200EXAMG1BAA meets CE and UL 508A industrial standards. The board discharges stored energy below 3V within five seconds. Hence, technicians face low electrical risk during maintenance or replacement.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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