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IS200GDDDG1A - Gate Driver and Dynamic Discharge Board

IS200GDDDG1A - Gate Driver and Dynamic Discharge Board IS200GDDDG1A - Gate Driver and Dynamic Discharge Board

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IS200GDDDG1A - Gate Driver and Dynamic Discharge Board is available in stock which ships the same day.

IS200GDDDG1A - Gate Driver and Dynamic Discharge Board comes in UNUSED as well as REBUILT condition.

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SPECIFICATIONS

Part Number: IS200GDDDG1A
Manufacturer: General Electric
Series: EX2000
Product Type: Driver Board
Availability: In Stock
Country of Manufacture: United States(USA)
Manual: GEH - 6375A

IS200GDDDG1A is a Gate Driver and Dynamic Discharge Board manufactured and designed by General Electric. The interface isolation between the IGBTs and the main processor firing circuits is provided by the Gate Driver and Dynamic Discharge board (GDDD). The GDDD board, as well as the gating circuits for the A and B leg active IGBTs, use dynamic discharge circuit control. This board also provides the regulator's instrumentation. The GDDD board processes the output dc voltage, dc link voltage, shunt current mV input, and heat sink thermistor input before sending them to the LDCC processors for use by the regulators.

Jumpers

JP1 - JP3 jumpers on the GDDD board configure the following items:

  • The JP1 jumper configures the dc output voltage input level to the GDDD board inputs APL-6 and BPL-5. It must match the value in EE.612 (VDCMAX).
  • The JP2 jumper configures the dc link voltage input level to the GDDD board inputs CPL-12 and CPL-2. It must be consistent with the value in EE. 612 (VDCMAX) (VDCMAX).
  • The JP3 jumper configures the dc dynamic discharge reference to the GDDD board's inputs CPL-12 and CPLCOM. It should correspond to the level in EE.612(VDCMAX), so that when EE.612 = 604, JP.3 = 500, and when EE.612 = 360, JP.3 = 300.

IS200GDDDG1A LEDs

  • The LED "Bridge OK," DS100 on the GDDD board indicates that no IGBT leg faults or overcurrents have been detected.
  • The LED "IMOK", DS101 on the GDDD board indicates that there are no bridge faults, the unit is not reset, the power supply voltages are correct, and no dynamic discharge faults have been detected.
  • The LED DS102 "DD AUX POWER AVAILABLE" indicates that auxiliary power for the dynamic discharge circuit is available from the dc link source via the RDS connection.

Test Points

  • Analog TP1 0-5 V proportional to PWM output voltage of a bridge
  • TP2 Analog 0-5 V proportional to the output current of the PWM bridge
  • TP3 Analog 0-5 V proportional to the dc link voltage of the PWM.
  • TP4 DCOM GDDD board signal common reference
  • Dynamic Discharge command value TP5
  • Dynamic Discharge feedback value TP6
  • TP7 When combined with TP8, this test point provides the PWM bridge's dc output voltage.
  • TP8 When combined with TP7, this test point provides the PWM bridge's dc output voltage.

Procedure for IS200GDDDG1A board replacement

  1. Remove all input power.
  2. To reveal the PSCD board, open the upper board rack door. Behind this board is the GDDD board.
  3. Remove the latch and lower the board rack.
  4. Disconnect all cables from the GDDD board with care, as shown below:
    1. Carefully pull the tab on ribbon connectors with pull tabs.
    2. One edge of the connector is secured to the board plug for plug connectors. Remove the securing clip and gently pull on the connector's sides until it comes free.
    3. To remove the connector from a stab connector, use needle-nose pliers.
  5. Remove the GDDD board from the rack by releasing the securing clips that hold it in place.
  6. Set the jumpers on the new board to match the jumpers on the old board.
  7. Install the new board and reconnect all cables, making sure that each connector is seated properly on both ends.

Features

  • The dynamic discharge circuitry on the GDDD board regulates the C leg of the 3-phase IGBT pack. In the case that control power is lost, a backup power source is supplied to the GDDD board using the RDS resistor for the discharge circuit.
  • The control level of the dc link by the dynamic discharge circuit is set by jumper settings on the GDDD board.
  • The dc link capacitors are connected to the IGBT bridge via the IAXS board, along with dynamic discharge control and gate control from the GDDD board. The IAXS board serves as a connection point for the control circuitry's sensing feedback and dc output voltage.

WOC has the largest stock of GE EX2000 Excitation Control System Replacement Parts. WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.


FREQUENTLY ASKED QUESTIONS

 

What is GE EX2000 IS200GDDDG1A?
IS200GDDDG1A is a Gate Driver and Dynamic Discharge Board developed by General Electric as part of the EX2000 Series used in Excitation Control Systems.

How are boards packaged for shipment from WOC?
Parts are placed in antistatic packets and securely packed in ESD boxes cushioned with ESD Foam designed to safeguard electrical components.

How to Check Price and Availability For Gate Driver and Dynamic Discharge Board?
Please Contact World of Controls FZE for sales at +1 609 385 1231 or Request a Quote.