Configured for excitation I/O signal routing in GE EX2000 Excitation Control Systems, the GE IS200EMIOH1AEB (IS200EMIO Exciter Main I/O Board) provides direct physical/electrical execution. It manages 12 channels of analog signals across EPCT, ECTB, EACF, and EXTB terminal boards. Operating as a single-slot, double-height VME-style board mounted directly in the control rack, it processes 4-20 mA current loops and 0-20 mA analog output drives while maintaining a common mode voltage tolerance range of +/-5 V across field interface circuits.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | IS200EMIOH1AEB |
| Brand | General Electric (GE) |
| Origin | United States |
| Dimensions | 8.26 cm high x 4.19 cm wide |
| Operating Temp | -30 to 65 deg C |
| Power Consumption | VME backplane powered |
| Series | EX2000 |
| Product Type | Exciter Main I/O Board |
| Form Factor | Single-slot, double-height VME-style board |
| Channel Count | 12 channels |
| Input Signal Span | 4-20 mA |
| Analog Output Current | 0-20 mA |
| Common Mode Voltage Range | +/-5 V |
| Maximum Lead Resistance | 15 ohm |
| Technology | Surface Mount |
| Terminal Board Compatibility | EPCT, ECTB, EACF, EXTB |
I/O Density Scaling and Signal Conditioning
The IS200EMIOH1AEB maximizes I/O density scaling within the EX2000 control rack by integrating 12 analog feedback channels into a single VME rack position. High-density surface-mount assembly enables onboard signal conditioning for 4-20 mA inputs and 0-20 mA outputs while restricting lead resistance limits to 15 ohm per channel. The electrical architecture provides low-latency execution across interconnected EPCT, ECTB, EACF, and EXTB terminal boards, ensuring deterministic analog feedback during excitation loop execution.
Frequently Asked Questions
Q: What terminal board connections interface directly with the IS200EMIOH1AEB?
A: The board interfaces directly with EPCT, ECTB, EACF, and EXTB terminal boards to route field analog feedback and control commands to the excitation processor.
Q: What is the maximum allowable loop lead resistance for the analog input channels?
A: The maximum supported lead resistance is 15 ohm per input channel to maintain signal accuracy within the specified +/-5 V common mode voltage range.
Q: What form factor and rack mounting constraints apply to this module?
A: The module is engineered as a single-slot, double-height VME-style circuit board that mounts directly into the EX2000 excitation control rack.
Field Installation Guidelines
- Isolate all rack power feeds and field exciter supply voltages before inserting or removing the board.
- Put on an electrostatic discharge (ESD) grounding wrist strap connected to bare cabinet metal prior to touching the module.
- Align the single-slot, double-height board with the designated top and bottom VME slot card guides.
- Apply firm, uniform pressure to seat the multi-pin backplane connectors completely into the rack backplane headers.
- Secure all interface cables connecting to the EPCT, ECTB, EACF, and EXTB terminal boards, ensuring drain wires are grounded per system wiring schematics.
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