GE IS200GGXDG1ABB Mark VI Expander Diode Board

GE IS200GGXDG1ABB Mark VI Expander Diode/Source Board

The GE IS200GGXDG1ABB is an Expander Diode/Source Board for Mark VI Speedtronic systems. This board provides analog and fiber-optic feedback between BICI boards and diode source or dynamic braking circuits in gas, steam, and wind turbine applications.

Technical Specifications

• Part Number: IS200GGXDG1ABB
• Manufacturer: General Electric (Salem, VA)
• Series: Mark VI Speedtronic
• Product Type: Expander Diode/Source Board
• Functional Abbreviation: GGXD
• Revisions: 3 total
• Assembly Type: Normal Assembly
• Weight: 13 oz
• Shipping Dimensions: 22 x 18 x 18 inches
• Country of Manufacture: United States
• Mounting: Control cabinet (not VME rack)

Connectors

• J1 (20-pin): Connection to NATO board
• J2 (6-pin): Connection to GDPA board
• J3 (2-pin): 115 VAC control power input
• PRSC (50-pin): I/O connector to BICI board
• DB1-DB4: 4 duplex connectors for DB IGCT status/firing commands
• 6x 3-terminal connectors
• 3x 2-terminal connectors
• 4-pin connector
• 7 stab-on connectors: For grounding

LED Indicators

• DS1: P5 OK signal indicator
• DS2: GDPA OK signal indicator
• DS4: 115V OK signal indicator
• 3 total LEDs for fault diagnosis

Test Points

• 15 TP test points: For diagnostic and monitoring access

Signal Types

• Source current transformer current feedback signals
• GDPA board power supply OK signal (opto-coupled)
• Opto-coupled circuit continuity checking signal (indicates NATO board connection)
• High-frequency voltage inputs from GDPA board

Interface & Communication

• RS-422 transceivers for gating commands and status signals
• Interfacing between BICI (Bridge Interface Control Board) and diode source/dynamic braking circuit
• Analog and fiber-optic feedback hardware

Jumper Configuration

• Berg jumpers: For burden resistor selection
• Wire jumpers: Control selective grounding
• Normal Operation: E1 and E4 jumpered together
• Normal Operation: E2 and E5 jumpered together
• Normal Operation: E3 and E6 not jumpered
• E7: Always tied to chassis ground

Key Features

• Provides feedback hardware between BICI and diode/dynamic braking circuits
• RS-422 interfacing for gating commands
• Receives high-frequency voltage from GDPA
• 7 stab-on grounding connectors
• 3 status LEDs (P5 OK, GDPA OK, 115V OK)
• 15 test points for diagnostics
• Multiple connectors: 20-pin J1, 6-pin J2, 2-pin J3, 50-pin PRSC, 4 duplex DB1-DB4
• 6 three-terminal and 3 two-terminal connectors
• Berg and wire jumpers for configuration
• Accepts current feedback, GDPA OK, and continuity signals
• 3 revision history
• Made in Salem, VA USA
• Does not mount in VME rack (no faceplate)

Compatibility

• BICI (Bridge Interface Control Board)
• GDPA (Gate Driver Power Assembly) board
• NATO (Voltage Feedback Attenuator) board
• Diode source circuits
• Dynamic braking circuits
• Mark VI turbine control systems

Installation Guidelines

• Mount in control cabinet (not VME rack)
• Connect J1 to NATO board (20-pin)
• Connect J2 to GDPA board (6-pin)
• Connect J3 to 115 VAC control power
• Connect PRSC (50-pin) to BICI board
• Connect DB1-DB4 for DB IGCT status/firing
• Use 7 stab-on connectors for grounding
• Configure berg/wire jumpers as needed
• Observe LED status after power-up
• Refer to GEI-100301 manual for details

Package Contents

• 1x GE IS200GGXDG1ABB Expander Diode/Source Board
• Anti-static protective packaging
• Ships via FedEx, UPS, or DHL

FAQ

• Where was this board manufactured?
  GE's Salem, Virginia factory in the USA.
• Does it mount in a VME rack?
  No, it mounts in the control cabinet (no faceplate).
• What do the LEDs indicate?
  DS1 = P5 OK, DS2 = GDPA OK, DS4 = 115V OK.
• What connectors are available?
  J1 (20-pin NATO), J2 (6-pin GDPA), J3 (2-pin 115V), PRSC (50-pin BICI), DB1-DB4 duplex, 6x 3-terminal, 3x 2-terminal, 7 stab-on grounds.
• How are jumpers configured normally?
  E1/E4 jumpered, E2/E5 jumpered, E3/E6 open, E7 to chassis.