IS200ERIOH1ACB GE EX2100 Exciter Regulator Main I/O Board

Product Description

Configured for customer and system I/O signal interfacing in the GE EX2100 excitation control system, the GE IS200ERIOH1ACB (IS200ERIOH1A Exciter Regulator Main I/O Board) provides signal interface connections between the regulator backplane and associated excitation control boards. It supports simplex and redundant configurations and interfaces with the Exciter PT/CT Terminal Board, Exciter Contact Terminal Board, Dynamic Discharge Board, and Exciter Regulator Options Card.

Hardware Specifications

EX2100 Regulator Backplane and I/O Interfaces

The IS200ERIOH1ACB provides interfaces for customer I/O signals and internal regulator system signals. Its installation location depends on the excitation system configuration.

In simplex applications, the board mounts in the Exciter Regulator Backplane (ERBP). It interfaces with customer signals associated with the Exciter PT/CT Terminal Board (EPCT) and Exciter Contact Terminal Board (ECTBG2). It also interfaces with the Exciter Regulator Dynamic Discharge Board (ERDD) and Exciter Regulator Options Card (EROC).

In redundant applications, the board is installed in the regulator backplane and the corresponding redundant regulator backplane assembly. The redundant arrangement also supports system signal interfaces associated with the Exciter Regulator Redundant Relay board (ERRR).

The board's exact channel count, electrical ratings, connector pin assignments, and signal thresholds require confirmation from the applicable GE EX2100 documentation.

Frequently Asked Questions

Q: What is the function of the IS200ERIOH1ACB in an EX2100 system?

A: It interfaces customer I/O signals and internal regulator signals with associated excitation control boards. The installation arrangement depends on whether the system uses simplex or redundant control.

Q: What do the POWER and OK LEDs indicate?

A: The POWER LED indicates the board's power status. The OK LED provides a visual indication of board operating status. LED behavior should be checked against the applicable GE troubleshooting documentation before diagnosing a fault.

Q: Can the IS200ERIOH1ACB be replaced while the excitation system is energized?

A: Hot replacement capability is not established by the supplied specifications. Confirm the system configuration, isolation requirements, and GE replacement procedure before removing or installing the board.

Field Installation Guidelines

1. Verify the part number. Confirm IS200ERIOH1ACB against the installed board, equipment bill of materials, and applicable EX2100 hardware documentation.
2. Confirm the mounting location. Identify the ERBP or redundant backplane position specified for the installed regulator configuration.
3. Isolate the equipment. Follow the site's approved electrical isolation and lockout/tagout procedures before handling the board. Do not assume the assembly supports energized replacement.
4. Inspect the hardware. Check connectors, backplane contacts, board edges, and visible components for damage or contamination.
5. Check signal wiring. Verify terminal assignments and cable routing against the system drawings. Keep signal wiring separated from power conductors where required by the installation design.
6. Verify grounding and shielding. Follow the GE grounding scheme and site EMC requirements. Avoid introducing unintended shield-ground connections.
7. Perform functional checks. After installation, verify the POWER and OK indicators and confirm the expected I/O behavior using approved commissioning and diagnostic procedures.

Other Attributes

• Series: GE Multilin 350 Feeder
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of The GE General Electric Mark VI 

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