IS200TREAH2A Turbine Control System

Functional Overview
The IS200TREAH2A is a 24-channel discrete (digital) input module in the GE Mark VIe control system. Its primary function is to collect discrete signals (contact open/close signals) generated by field devices such as sensors,
 switches, and relays, convert them into digital signals that can be recognized and processed by the PLC or control system CPU,
and transmit the processed data to the GE Speedtronic turbine control system or other control equipment, enabling automated control and monitoring.

Key Technical Specifications
Rated Voltage: 24.0 VDC (Nominal)
Maximum Rated Voltage: 28.6 VDC
Maximum Rated Contact Input Voltage: 32 VDC
Number of Input Channels: 24 Discrete Inputs
Operating Temperature Range: -30°C to +65°C
Environmental Adaptability: Passes rigorous environmental testing, capable of long-term stable operation in harsh industrial environments

Compatible Terminal Boards
The IS200TREAH2A can be paired with a variety of GE terminal boards, including but not limited to:
IS200STCIH1A / IS200STCIH2A
IS200STCIH8A
IS200TBCIH2C / IS200TBCIH4C
IS400STCIH1A / IS400STCIH2A / IS400STCIH8A
IS400TBCIH2C

Certifications and Safety

This module is UL certified and can be used in both hazardous and non-hazardous locations. The UL certification covers various classes and divisions, and relevant UL mark documents are available for reference.

Industry data shows that during the refueling process of vehicles, a large amount of hydrocarbons are discharged into the atmosphere through the refueling port, which is one of the important causes of smog. The Chinese government has begun drafting regulations targeting ORVR requirements to address the country’s severe environmental pollution problems. It is reported that ORVR related regulations will be officially released in 2015 and implemented in early 2017, gradually extending from Beijing and Guangzhou to other major cities and regions across the country.

Krishnakumar Srinivasan, President of Eaton Vehicle Group Asia Pacific, said: “Currently, there are two main forms of refueling vapor recovery systems, one is the secondary oil vapor recovery system used at gas stations, and the other is the vehicle-mounted refueling vapor recovery system. (ORVR). Eaton is committed to helping customers and governments here and around the world solve their toughest power challenges, and our on-board refueling vapor recovery systems have proven to be one of the most effective solutions to help reduce hydrocarbons.”

From 1998 to 2001, the ORVR system has been fully promoted and applied in the United States. Eaton started early in the research and development of ORVR and supplied the first fuel vapor valve for the ORVR system in 1997. Today, Eaton already has a very large fuel vapor valve customer base around the world.

In addition to ORVR systems, Eaton offers a variety of other fuel emissions solutions, including fuel tank isolation valves (FTIV) for plug-in hybrid vehicles. FTIV is a multi-stage pure electric valve body that can cut off the path when the engine is not running, preventing the carbon canister from being overloaded and preventing fuel vapor from being discharged to the outside world. When the car is running in pure electric mode, FTIV can effectively control the pressure in the fuel tank and the emission of hydrocarbons into the carbon canister. When the car is running in engine mode, the carbon canister is desorbed under the vacuum of the intake manifold, and the fuel vapor enters the engine through the intake manifold for combustion to generate power. Eaton now offers a variety of plug-in hybrid modules based on FTIV technology.