General Electric IS200ESELH1AAA Mark VI Exciter Collector Board

Description

The IS200ESELH1AAA serves as an exciter collector board developed for the Mark VI Speedtronic control platform. This electronic assembly functions primarily within turbine control systems to handle continuous management parameters for steam and gas turbines. Operating within either a Simplex infrastructure or a Triple Modular Redundant (TMR) structural setup, the IS200ESELH1AAA receives logic-level gate pulses directly from a linked VME-based EMIO input/output management card. The module interfaces with up to six distinct gate pulse signals, routing these outputs onward to an external EGPA exciter gate pulse amplifier board positioned inside a separate enclosure cabinet. Built with integrated voltage suppression and circuit limitation components spanning over 200 resistors, diodes, transistors, and integrated circuits, this conformal-coated printed circuit board ensures clean data execution pathways across dual multi-pin backplane connectors.

Features

• Receives up to six distinct logic-level gate pulse signals directly from a host VME-style EMIO management unit.
• Routes processed gating information to a separate cabinet-mounted EGPA exciter gate pulse amplifier module.
• Deploys integrated voltage suppression architecture using a network of over 200 resistors, capacitors, transistors, and diodes.
• Features a slim physical faceplate equipped with three status LEDs designated for Power, Active, and Gating monitoring.
• Adapts dynamically to simple system configurations using one unit, or TMR setups utilizing two boards driven by M1 and M2 links.
• Features specialized industrial conformal PCB insulation coating across the active surface layer for hardware durability.

Applications

• Mark VI Speedtronic Systems: Directing gate pulse synchronization tasks for utility-scale gas and steam turbine controls.
• Excitation Controls: Interfacing interface logic maps between primary input/output blocks and external gate pulse amplifiers.
• TMR Redundant Operations: Functioning as an isolated pulse capture node driven concurrently by distinct controller processors.

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Turn off all main power paths going to the Mark VI turbine control chassis before inserting the module.
• Slide the board evenly along the designated rack tracks until the dual backplane connectors link fully into the receiver frame.
• Fasten the top and bottom mounting clips securely over the enclosure frame to prevent loose contact faults.
• Verify correct tracking behaviors across the faceplate panel by evaluating the Power, Active, and Gating LEDs during system initialization.