The GE IS200EROCH2A IS200EROCH2ABC exciter regulator options card adds I/O capacity for Mark VI excitation systems. This card provides additional analog channels for exciter control functions. You will find this options card in GE Mark VI exciter control cabinets. Its compact design expands I/O without consuming multiple rack slots.
Options Card Architecture
This regulator options card features four analog input channels with 16-bit resolution. Consequently, it reads additional field voltage and current signals accurately. The GE IS200EROCH2A IS200EROCH2ABC also includes four analog output channels. Moreover, a dedicated microcontroller manages all signal processing locally. You can configure each channel independently through software.
Technical Specifications
| Parameter | Value |
|---|---|
| Analog Inputs | 4, differential, 16-bit resolution |
| Analog Input Ranges | 0-10V, ±10V, 0-20mA, 4-20mA (selectable) |
| Analog Input Accuracy | ±0.1% of full scale |
| Analog Outputs | 4, 0-10V or 4-20mA, 12-bit resolution |
| Analog Output Accuracy | ±0.2% of full scale |
| Input Voltage | 24V DC ±10% |
| Power Consumption | 5W typical |
| Dimensions | 190mm x 140mm x 25mm |
| Weight | 0.42 kg (0.93 lbs) |
| PCB Layers | 6 |
| Onboard Components | 1 microcontroller, 1 ADC, 4 DACs, 8 op-amps |
| Connector Count | 3 (analog I/O, backplane, status) |
| Status Indicators | 2 LEDs (power, fault) |
| Energy Storage | 470 µF (analog supply filtering) |
| Isolation Voltage | 1500V (field to logic) |
| Sampling Rate | 100 Hz per input channel |
| Operating Temperature | 0°C to +50°C |
| Storage Temperature | -20°C to +70°C |
Local Processing and Signal Conditioning
The unit includes a dedicated microcontroller for local signal processing. Therefore, it reduces the main regulator’s workload significantly. This card replaces the IS200EROCH2ABC version without any configuration changes. Simply remove the old card and install this one. GE designed this options card for single-slot installation. Hence, it fits directly into existing Mark VI rack positions.
Six PCB layers separate analog and digital signal paths effectively. Three connectors handle all I/O, backplane, and status signals. The GE IS200EROCH2A IS200EROCH2ABC includes programmable filters on analog inputs. Accordingly, it rejects 50/60 Hz noise from industrial environments. Two status LEDs indicate board power and fault conditions clearly.
Configuration and Installation Guide
You can configure analog input ranges individually through software. No jumpers or hardware changes are required for setup. The GE IS200EROCH2A IS200EROCH2ABC works with all GE Mark VI excitation systems. Always use shielded cable for analog wiring longer than 10 meters. Proper grounding of analog commons prevents ground loop errors.
Analog outputs can drive exciter field reference signals directly. Each output includes short circuit protection for reliability. The GE IS200EROCH2A IS200EROCH2ABC delivers reliable excitor regulator expansion for turbine systems. Installation requires only a screwdriver for terminal connections. This board operates reliably in non-condensing environments only.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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