IS200ESELH1A GE EX2100, EXCITER SELECTOR CARD

Description:

Functional Description
The IS200ESELH1A is an Exciter Selector Board developed by GE, part of the EX2100 excitation system. It plays a crucial role in the excitation system by receiving logic level gate pulses from the connected EMIO board. Specifically designed to handle up to six gate pulse signals from the EMIO board, it manages communication and control of the Exciter Gate Pulse Amplifier (EGPA) boards located in a different cabinet.

Connectivity and System Configuration
In a simplex system configuration, one ESEL board is sufficient. However, a Triple Modular Redundancy (TMR) system requires one board driven by M1 and another connected to M2. The EMIO board, a VME (Versa Module Eurocard) board, acts as the central manager for inputs and outputs from multiple terminal boards.

Physical Features and Indicators
The board features a narrow attached faceplate, mostly empty except for three LED indicators near the top of the panel. These LEDs, labeled as power, active, and gating, provide critical status information. The faceplate also displays the board ID and the GE logo, placed top and bottom on the securing clips within the rack system.

Backplane Connectors and Functionality
The board incorporates two backplane connectors to facilitate its integration within the system architecture. Functionally, it includes a single bridge driver that controls one Phase Control Module (PCM), contributing to the precision of the excitation system's operations.

Operational Characteristics
Operationally, the selectors on the board direct six gating commands from either M1 or M2 under the control of C. In the event of a failure or loss of control power to C, the system designates M1 as the active master. The board also provides status feedback, informing its master which of the two masters (M1 or M2) has been selected as active.

Reliability and Fail-Safe Features
The board is designed for reliable fanout, ensuring the accurate transmission of all six commands from either M1 or M2 independently. In case of a fanout circuit failure, the remaining circuits continue operating unaffected, enhancing the system's reliability and fault tolerance.

Datasheet Link:

IS200ESELH1A GE EX2100, EXCITER SELECTOR CARD PDF Datasheet