Description

GE IS200ESYSH3A EX2100e I/O Terminal Board

The GE IS200ESYSH3A, also cataloged as the IS200ESYSH3A I/O Terminal Board, operates as a dedicated hardware component for generator excitation signal termination and distribution within the GE EX2100e Excitation Control System. The board processes CT/PT feedback, auxiliary contact inputs, and trip relay outputs through the M1 control section interface.

Hardware Specifications

Parameter	Specification
Model	IS200ESYSH3A
Brand	GE
Origin	United States
Weight	0.5 kg
Dimensions	147 mm x 51.5 mm x 114 mm
Operating Temp	0 to 60 deg C
Power Consumption	8.5 W max
Product Type	I/O Terminal Board
Series	EX2100e
Control Section	M1
Functional Acronym	ESYS
Group Variation	H3
Redundancy Type	Simplex Control
CT Inputs	2 channels, selectable 1 A or 5 A
PT Inputs	2 x 3-phase generator voltage inputs, 120/240 VAC
Trip Relays	2 x Form-C, 250 VAC / 5 A resistive
Auxiliary Inputs	7 opto-isolated contact inputs, 24 VDC
Power Supply Input	24 VDC (18-36 VDC)
Serial Interface	HSLA high-speed serial interface
Serial Data Rate	1.2 Mbps
Update Cycle	10 ms deterministic cycle
Isolation	2500 Vrms CT/PT-to-logic, 500 Vrms channel-to-channel
Connector Configuration	6 Sub-D pin connectors
Board Coating	Conformal industrial coating

Industrial Control and Excitation Interface Characteristics

The IS200ESYSH3A integrates with the EX2100e excitation architecture through the HSLA high-speed serial interface, providing deterministic communication between field signal circuits and the M1 control section. The board performs signal conditioning for generator current transformers, potential transformers, auxiliary contacts, and trip relay circuits.

The CT/PT acquisition paths support scaled generator feedback measurement for excitation regulation. Relay outputs provide Form-C switching functions for excitation-related protection circuits, while opto-isolated contact inputs maintain electrical separation between external devices and control electronics.

The EX2100e platform uses defined I/O density scaling through dedicated terminal board configurations. The H3 variant is configured for simplex control operation, with firmware and hardware compatibility determined by the installed Mark VI / EX2100e system configuration.

Frequently Asked Questions

Q: What type of field signals are connected to the IS200ESYSH3A?
A: The board terminates generator CT inputs, PT voltage inputs, auxiliary contact signals, and trip relay circuits used by the EX2100e excitation system.

Q: What communication method is used between the terminal board and controller?
A: The IS200ESYSH3A communicates through the HSLA high-speed serial interface at 1.2 Mbps with a defined update cycle.

Q: Is the IS200ESYSH3A configured for redundant operation?
A: The H3 group variation supports simplex control operation. Other EX2100e board variants provide different redundancy configurations.

Field Installation Guidelines

Install the IS200ESYSH3A in the designated EX2100e control cabinet location and verify correct connector engagement before energizing the excitation system.

Terminate CT and PT wiring according to the system wiring drawings. Maintain correct polarity and phase identification for generator feedback signals. Use shielded instrumentation wiring where required and connect shields according to site grounding practices.

Separate analog measurement wiring from high-current excitation conductors and switching circuits to reduce electromagnetic interference. Verify auxiliary contact wiring, relay output circuits, and isolation requirements before commissioning.

Confirm the installed board variant, control section assignment, and firmware compatibility with the EX2100e system configuration before replacement or startup activities.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems