Description

GE IS200ERIOH1ACB EX2100 Exciter Regulator I/O Board

Configured for excitation system signal termination and relay interface execution in the GE EX2100 excitation control platform, the GE IS200ERIOH1ACB (IS200ERIOH1ACB Exciter Regulator I/O Board) provides direct physical/electrical execution between controller hardware and external contact, relay, and analog feedback circuits.

Hardware Specifications

Parameter	Specification
Model	IS200ERIOH1ACB
Brand	GE
Product Type	Exciter Regulator Main I/O Board
System Platform	EX2100 Excitation Control System
Board Type	Exciter Regulator I/O Board
Inputs	Multiple auxiliary contact inputs
Contact Wetting Voltage	70 VDC (63 to 84 VDC range)
Relay Outputs	Trip relays and general-purpose Form-C relays
Analog Signals	Generator PT/CT voltage and current feedback signals
Control Voltage	24 VDC
Customer Power	125 VDC
Isolation	500 VDC channel-to-earth isolation for relay contacts
Mounting	Exciter chassis backplane
Revision Total	3 revisions
Backward Compatibility	First two revisions compatible
Operating Temp	0 to +60 deg C
Storage Temp	-40 to +85 deg C
Humidity	5% to 95% non-condensing

Industrial Control Interface and Firmware Compatibility

The GE IS200ERIOH1ACB operates as an I/O expansion and termination interface within the EX2100 excitation control architecture. The board provides electrical connection points for auxiliary contact monitoring, relay command circuits, and generator feedback signals exchanged with the exciter controller.

The board interfaces with the EMIO board and supports deterministic signal transfer within the excitation control hardware structure. Revision compatibility must be verified before replacement installation, as only the first two revisions maintain backward compatibility.

The EX2100 platform uses configured I/O mapping and firmware-based hardware identification. Proper firmware flash compatibility checking is required when integrating the board into an existing controller assembly.

Frequently Asked Questions

Q: What field signals can be connected to the IS200ERIOH1ACB?
A: The board supports auxiliary contact inputs, trip relay outputs, general-purpose Form-C relay outputs, and analog feedback signals from generator PT/CT circuits.

Q: What is the contact wetting voltage specification for this board?
A: The auxiliary contact inputs use 70 VDC wetting voltage with an operating range of 63 to 84 VDC.

Q: How many revisions exist for the IS200ERIOH1ACB?
A: The board has three revisions, with the first two revisions specified as backward-compatible.

Field Installation Guidelines

Install the IS200ERIOH1ACB in the designated EX2100 exciter chassis backplane position and secure the board using the specified mechanical mounting hardware. Verify all field wiring assignments before connecting contact, relay, and analog signal terminals.

Route analog feedback wiring separately from high-current excitation conductors to reduce electromagnetic interference. Use appropriate shield termination practices according to cabinet grounding design requirements.

Confirm board revision compatibility, controller configuration parameters, and I/O mapping before system energization. Check relay contact wiring polarity and isolation requirements before applying customer power connections.

Specifications

• Brand: General Electric

Advantages

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