GE IS200EMIOH1ACA Exciter Main I/O Board

FAQ

Q1. What is the IS200EMIOH1ACA used for?
It is the main exciter I/O board in GE Mark VI or EX2100 turbine control systems that manages key input and output signals between controllers and terminal boards.

Q2. What type of board format does it use?
It uses a single‑slot, double‑height VME module form factor for installation in control racks.

Q3. How many relay channels does it support?
It supports 12 relay output channels for system control and protection operations.

Q4. What signals does this board handle?
It handles transformer inputs (PT/CT), discrete contact inputs, output relay driving, and pilot trip relay drives.

Q5. What power does this board require?
The board is powered by 5 V DC supplied via the system backplane.

Q6. What environmental conditions can it operate in?
It is designed for industrial turbine control environments with operating temperatures from approximately 0 °C to +60 °C and wide humidity tolerance.

Q7. Does it provide status feedback?
Yes — front‑panel LEDs indicate power and status for diagnostics.

Q8. What happens if this board fails?
Failure can disrupt I/O signal processing for exciter and protection modules, potentially affecting turbine excitation control and system stability.

GE IS200EMIOH1ACA

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