IS200PSCDG1A - Power Supply/Contactor Driver Board

IS200PSCDG1A - Power Supply/Contactor Driver Board IS200PSCDG1A - Power Supply/Contactor Driver Board

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Part Number: IS200PSCDG1A
Manufacturer: General Electric
Series: EX2000
Microprocessor: Intel Celeron 300 MHz
Memory: 32 MB DRAM
Operating system: QNX
Programming: Boolean
Product Type: Power Supply/Contactor Driver Board
Secondary Ethernet Interface: 10BaseT/100BaseTX
Max load Current: 125 V dc
Voltage Range: 14 to 32 V dc
Maximum Lead Resistance: 15 Ω
Storage temperature: -40 to 80° C
Operating temperature: 0 to 70° C
Technology: Surface mount
Size: 16.2 cm high x 8.6 cm
Repair: 3-7 Day
Availability: In Stock
Weight: 2 lbs
Country of Origin: United States
Manual: GEI-100603A


IS200PSCDG1A is a Power Supply/Contactor Driver Board manufactured and designed by General Electric as part of the EX2000 Series used in GE Speedtronic Control Systems. The IS200PSCD Power Supply / Contactor Driver board provides the control power, power supply sensing, and contactor control for the EX2000 PWM-based exciter. The Power Supply and Contactor Driver board is powered from the dc link via stab-on terminals DCPLl (+) and DCPL2 (-). The control operates from 80 to 400 V dc as nominal range inputs. Transient operation to 600 V dc is possible during maximum operation of the dynamic discharge. This board produces control power for distribution to the other control module cards. The main supply produces +/- 24 V, +/-15 V, and +5 V for control boards. A 17.7 V ac squarewave is distributed -&rough& high-frequency-transformers to the gate driver and LAN Terminal Board (LTB) inputs power supplies. Auxiliary to the main supply is supplies for generating isolated 70 V dc (sufficient to power 13 LUP inputs ) and isolated SHWSHVM power for future applications.

The contactor control power supply from the PSCD board is sized to deliver up to 0.75 A dc. Power is taken directly from the dc link and converted to 100 V dc by a buck converter. The enable of the MDA contactor is via an optically coupled signal which is logically in parallel with the coil of Kl. Relay Kl is driven from the LAN and Drive Control Card (LDCC) when the control is commanded to run. Relay KS6 is used as the control’s permissive to run an emergency stop. Dropping ant KS6 will immediately stop the EX2000 PWM regulator. The coil voltage is from the 70 V dc power supply on the PSCD board. KS6 picks up via a contact fi-om 7OPL- 1 to 7OPL-3.


  • TPl is the positive 24 V dc power supply voltage.
  • TP2 is the positive 15 V dc power supply voltage.
  • TP3 is the positive 5 V dc power supply voltage.
  • TP4 is the negative 15 V dc power supply voltage.
  • TP5 is the negative 24 V dc power supply voltage.
  • TP6 is the PSCD Power Supply DCOM.
  • TP7 ( used with TP8 and TP9 ) is the 17.7 V ac, squarewave source common.
  • TP8 ( used with TP7 ) is the 17.7 V ac, high-frequency squarewave source for the contactor driver and GDDD gate power.


  • Connector PPL connects to the PSCD board which provides high frequency control power to the GDDD board.
  • Connector MDPL connects to the dc contactor coil for control of the contactor.
  • Connector SQPL ( optional ) connects to the optional SHVM or SHVI board for power distribution to the voltage-controlled oscillators.
  • Connector 2PL connects to the LDCC and TCCB boards and provides power distribution to those boards.
  • Connector 4PL connects to the 3TB/NTB board for power distribution to the control on input and auxiliary contacts.

WOC has the largest stock of GE Excitation Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly contact our team by phone or email.


What is a Power Supply/Contactor Driver Board?

A Power Supply/Contactor Driver Board is a circuit board used to control power supply and contactors in various electrical systems. It typically manages the distribution of power and the activation/deactivation of contactors to regulate the flow of electricity.

What are the main components of a Power Supply/Contactor Driver Board?

The main components usually include power supply units (PSUs), contactors, control circuitry (such as microcontrollers or programmable logic controllers), input/output interfaces, protection circuitry (like fuses and surge suppressors), and communication interfaces if the board needs to communicate with external systems.

What are the applications of Power Supply/Contactor Driver Boards?

These boards are commonly used in industrial machinery, automation systems, power distribution units (PDUs), uninterruptible power supplies (UPS), and electric vehicle charging stations, among others. They ensure efficient and safe management of power distribution and control.