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Control Boards; Exciter Backplane (ebkp); Ebkp Backplane; Dspx Board - GE EX2100 User Manual

Excitation control.
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Control Boards

The DSPX performs most of
the I/O interface and inner
loop bridge control and
protection functions
3-2 Chapter 3 Printed Wiring Boards Overview
The control boards are located in the control module. This module consists of the
exciter backplane (EBKP) and the metal chassis that holds the boards (refer to Figure
3-1). The control boards are as follows:
IS200DSPX Digital Signal Processor control board (DSPX)
IS215ACLA Application Control Layer Module (ACLA)
IS200EISB Exciter ISBus Board (EISB)
IS200EMIO Exciter Main I/O board (EMIO)
IS200ESEL Exciter Selector board (ESEL)

EBKP Backplane

The EBKP provides the backplane for the control boards and the connectors for the
I/O terminal board cables. EBKP has three sections for controllers M1, M2, and C.
Each section has its own independent power supply. Controllers M1 and M2 have
the ACLA, DSPX, EISB, EMIO, and ESEL boards. Section C only has the DSPX,
EISB, and EMIO. Two overhead fans cool the controllers.
The upper part of the backplane contains DIN connectors for the plug-in control
boards. The lower part of the backplane contains D-SUB connectors for I/O interface
cables, and circular DIN connectors for keypad interface cables, power supply plugs,
and test rings. Labels on the connectors in Figure 3-1 refer to the boards and devices
to which the cables are connected. For more information refer to Chapter 4 and GEI-
100460.

DSPX Board

The DSPX board is the main controller and shares control responsibility with the
ACLA. It is a single-slot, 3U high module located in the control rack next to the
ACLA. It provides functions including the bridge firing circuit control, I/O
processing, and inner loop regulation as follows:
Field Voltage Regulator (FVR)
Field Current Regulator (FCR)
SCR gating signals to the ESEL board
Start-stop function
Field flashing control
Alarms and trip logic
Generator instrumentation processing
Generator simulator
For more information refer to Chapter 4 and GEI-100267.
GEH-6632 EX2100 User's Guide

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  • AHMED Nov 25, 2012 01:47:
    ilike studing for the manuel white excitation EX2100