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GE IS200EROCH1ABC Exciter Regulator Option Card

The GE IS200EROCH1ABC, also cataloged as the IS200EROC Exciter Regulator Option Card, operates as a dedicated hardware component for auxiliary excitation monitoring and protection functions within GE Mark VI / Mark VIe and EX2100 excitation control platforms.

Hardware Specifications

Parameter	Specification
Model	IS200EROCH1ABC
Brand	GE
Origin	United States
Weight	0.5 kg
Operating Temp	-40 deg C to +70 deg C, non-condensing
Power Consumption	< 7 W under full load
Product Type	Exciter Regulator Option Card
System Platform	Mark VI / Mark VIe Speedtronic and EX2100 Excitation Control System
Backplane Interface	VME rack backplane
Power Supply Input	+5 V and +/-15 V from VME backplane
Communication Interfaces	RS-232 service/debug port, ISBUS data bus
Signal Interface	24 VDC logic signals, isolated auxiliary sensor inputs
Rack Configuration Support	Simplex and TMR rack configurations
Protective Design	Conformal coating for dust and moisture resistance

GE Excitation Control Platform Integration

The IS200EROCH1ABC provides auxiliary monitoring and protection expansion functions for GE excitation control assemblies. The card interfaces with VME rack communication paths and supports data exchange with DSP controllers and ERIO I/O modules. It is designed for functions including field ground fault monitoring, diagnostic access, and auxiliary protection signal handling.

The board supports simplex and triple modular redundant (TMR) rack configurations. Its conformal-coated PCB construction provides environmental protection against dust and moisture exposure in industrial control cabinets. The card does not execute primary voltage regulation algorithms but extends excitation system monitoring capability.

Frequently Asked Questions

Q: Does the IS200EROCH1ABC perform primary excitation voltage regulation?

A: No. The IS200EROCH1ABC functions as an auxiliary option card for monitoring, protection expansion, and diagnostic access. Primary regulation functions are executed by dedicated excitation control processors.

Q: What communication interfaces are available on the IS200EROCH1ABC?

A: The card provides an RS-232 service/debug interface and communicates through the ISBUS data bus within the excitation control architecture.

Q: Can the IS200EROCH1ABC operate in redundant rack configurations?

A: Yes. The module supports both simplex and triple modular redundant (TMR) rack configurations within compatible GE Mark VI / Mark VIe and EX2100 systems.

Field Installation Guidelines

Install the IS200EROCH1ABC in the designated 3U VME rack slot according to the system hardware configuration. Verify backplane power availability before insertion and confirm that rack addressing and module positioning match the excitation controller configuration.

Use proper cabinet grounding practices when connecting auxiliary signal wiring. Shielded cables should be routed separately from high-current exciter power conductors to reduce electromagnetic interference. Maintain appropriate separation between communication cables, logic wiring, and power circuits.

Before operation, inspect the conformal-coated PCB surface, connector contacts, and rack interfaces for contamination or mechanical damage. Confirm diagnostic communication access through the service interface during commissioning procedures.

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