Description

GE IS200EMIOH1A Emergency Turbine I/O Terminal Board

The GE IS200EMIOH1A, also cataloged as the IS200EMIOH1A Emergency Turbine I/O Terminal Board, operates as a dedicated hardware component for emergency trip signal interfacing within GE Mark VI/VIe Speedtronic control system platforms. It provides discrete input acquisition, relay output switching, and electrical isolation for turbine protection circuits.

Hardware Specifications

Parameter	Specification
Model	IS200EMIOH1A
Brand	GE
Origin	United States
Product Type	Emergency Turbine I/O Terminal Board
Series	Mark VI / Mark VIe Speedtronic Control System
Functional Acronym	EMIO
System Application	Emergency trip and protective I/O interfacing
Inputs	Multiple discrete trip inputs, dry contact or voltage sensing
Outputs	Relay outputs for trip solenoids, shutdown valves, and protective relays
Isolation	Optical/electrical isolation between channels and ground
Signal Conditioning	Surge suppression, EMI filtering, and fault detection
Connectors	Barrier terminal strips for field wiring; backplane connectors for controller interface
Mounting	EX2100 exciter main I/O board configuration
Weight	2 lbs
Operating Temp	-30 to +65 deg C
Storage Temp	-40 to +85 deg C
Humidity	5%-95% non-condensing
Power Consumption	Not specified

EtherNet/IP and Industrial Control Interface Characteristics

The IS200EMIOH1A integrates with GE Mark VI/VIe control architectures through controller interface connections for emergency protection signal processing. The board handles discrete field signal transfer using channel isolation, surge suppression, and EMI filtering to maintain signal integrity between external trip devices and turbine control electronics.

The EMIO board supports industrial control signal separation through optical and electrical isolation methods. This configuration reduces the influence of field wiring disturbances on controller-side electronics and supports deterministic protective action paths within the excitation and turbine control system.

Frequently Asked Questions

Q: What type of signals are processed by the IS200EMIOH1A?
A: The board processes discrete emergency trip inputs and relay-based outputs connected to protective devices, shutdown valves, trip solenoids, and related control circuits.

Q: Does the IS200EMIOH1A provide electrical isolation?
A: Yes. The board provides optical/electrical isolation between field channels and ground to separate external protection circuits from controller electronics.

Q: What installation interface is used for field wiring?
A: The board uses barrier terminal strips for field connections and backplane connectors for integration with the Mark VI/VIe control system.

Field Installation Guidelines

Install the IS200EMIOH1A in the designated EX2100/Mark VI control cabinet location with proper mechanical securing and connector alignment.

Verify all field wiring connections before energization. Separate emergency trip wiring from high-current power conductors to reduce electrical interference. Use shielded cables where required by the system design and terminate cable shields according to cabinet grounding practices.

Check terminal polarity, signal reference points, and isolation boundaries before connecting external trip devices. Inspect terminal blocks, connectors, and grounding paths during installation and maintenance activities.

Specifications

• Brand: General Electric

Advantages

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