IS200JPDFG1ACA - Power Distribution Module

IS200JPDFG1ACA - Power Distribution Module IS200JPDFG1ACA - Power Distribution Module

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Part No.: IS200JPDFG1ACA
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Board rating: 125 V dc nominal, 145 V dc max
Modules Size: 30.48 cm High x 21.33 cm Wide x 16 cm Deep
Mounting: Four mounting holes, 10 screws
Technology: Surface-mount
Product Type: Power Distribution Module
Availability: In Stock
Series: Mark VIe

Functional Description

IS200JPDFG1ACA is a power distribution module developed by GE. It is a part of the Mark VIe control system. The module serves as a high-availability 125 V DC power distribution hub for system boards. The component delivers a robust and reliable solution for 125 V DC power distribution in demanding applications. Its combination of advanced features, flexible configuration options, and comprehensive monitoring capabilities make it a valuable asset for ensuring system stability and optimal performance.


  • Redundant Power Inputs: The module is engineered to accommodate multiple 125 V DC inputs, a design feature that ensures uninterrupted operation even in the event of a power source failure. By embracing redundancy, this capability significantly bolsters system reliability and uptime, effectively mitigating the risk of operational disruptions.
  • Floating DC Bus: Adopting a non-grounded DC bus configuration, this module prioritizes safety and simplifies ground fault detection processes. By eliminating shock hazards and streamlining fault identification, this innovative approach fosters a safer operating environment for both personnel and equipment, enhancing overall operational safety.
  • Versatile Power Distribution: Equipped with both switched and non-switched fused outputs, the module facilitates customized power distribution to various system boards. This versatility enables optimized power utilization and accommodates diverse load requirements, thereby enhancing overall system efficiency and performance.
  • AC-DC Conversion Integration: Seamless integration with DACA modules empowers efficient AC-to-DC conversion, offering unparalleled flexibility in power sourcing. This integration enables the utilization of both AC and DC power sources as required, thereby enhancing system adaptability and resilience to dynamic operational demands.
  • Enhanced Reliability: Through redundant inputs, multiple fused outputs, and comprehensive monitoring mechanisms, this module ensures exceptional system uptime. By minimizing operational disruptions and guaranteeing consistent power availability, this feature reinforces system reliability and performance under varying operational conditions.
  • Detailed Status Feedback: By establishing a connection with a PPDA I/O pack, the module enables real-time monitoring of critical parameters such as bus voltage, ground faults, and excessive AC voltage on the DC bus. This detailed feedback mechanism empowers proactive maintenance strategies, minimizing downtime and optimizing overall system performance.
  • Non-hazardous Live Voltage: With its floating DC bus and non-hazardous voltage rating, the module cultivates a safe operating environment. By mitigating electrical risks and providing robust protection for both personnel and equipment, this feature underscores the module's commitment to enhancing safety within the control system environment.

Board Installation Procedure

  • Secure Mounting: Begin by locating the dedicated PDM cabinet. Inside, identify the designated metal back base. Securely mount the module in an upright position on this base, ensuring stability and minimizing potential vibrations.
  • Grounding for Safety: Establish a reliable connection between the sheet metal and the system's protective earth (PE) terminal. This crucial step ensures proper grounding and protects against electrical faults.
  • Power Input Options: For your 125V DC battery power, locate the designated terminals DCHI and DCLO. Connect the battery leads carefully, adhering to the correct polarity.
  • Integrating DACA Modules (Optional): If your system utilizes one or two DACA modules for AC-DC conversion, connect them to the JPDF board through their respective connectors, JZ2 and JZ3.
  • Output Circuit Connections: Provides various output circuits for powering different system components. Consult the overall system's technical specifications to identify the designated connections for each circuit. Ensure correct polarity and voltage compatibility during wiring.
  • PPDA Connectivity (Optional): For systems equipped with a PPDA power diagnostic I/O pack, a 50-pin ribbon cable is required. Connect one end of the cable to the JPDF connector P1 and the other end to the P2 connector on the board holding the PPDA unit. This connection, if applicable, may be routed through other core PDM boards using the designated P2 connector path. Ensure optimal cable routing for signal integrity.

Ground Fault Detection

  • Enhanced Safety: By isolating the DC bus from ground, the risk of electrical shocks and equipment damage caused by direct ground faults is significantly reduced. This fosters a safer operating environment for both personnel and sensitive electronic components.
  • Ground Fault Identification: The floating bus configuration makes identifying ground faults a streamlined process. When either the positive or negative bus voltage deviates from its centered position and touches ground potential, a ground fault is detected. This enables the system to quickly pinpoint the fault location and initiate corrective actions.
  • Precise Voltage Monitoring: To facilitate this sophisticated detection system, the IS2020JPDF employs independent voltage feedback sensing for both the positive and negative bus with respect to ground. This granular monitoring provides accurate data on the relative bus voltages, allowing for sensitive detection of even minor ground fault imbalances.
  • System Integration: For seamless integration with the overall system, the voltage feedback signals are transmitted via dedicated cables to a PPDA I/O pack. This crucial hardware interface translates the voltage data into actionable information for the system, triggering alarms, logging events, and initiating protective measures in response to identified ground faults.

Fuse for connectors

  • Fuse for connectors J1R, J1S, J1T: FU1R, FU2R, FU1S, FU2S, FU1T, FU2T
  • Fuse for connectors J7X, J7Y, J7Z: FU71-FU76
  • Fuse for connectors JBA, JBB: FU81-FU84
  • Fuse for connector J12: FU12 - FU13


  • Board Configuration: When powering TBCI boards with JPDF, it is imperative to utilize connector J12 in conjunction with a JPDD fan-out board. This configuration ensures proper power distribution and compatibility with the TBCI boards. Additionally, the 44 source impedance should be coordinated with the circuit ratings on the board to maintain operational integrity and prevent potential issues.
  • TRPG/TREG Board Pair Configuration: The TRPG/TREG board pair plays a critical role in system operation. To ensure reliable performance, these boards should be powered by the J7 connector. This specific connector is designated to supply power to the TRPG/TREG board pair, ensuring consistent and uninterrupted operation of these essential components within the system.
  • JP1 Configuration for Ground Fault Detection: In cases where JPDF serves as the source for bus voltage centering resistors required for ground fault detection, JP1 should be installed. This jumper ensures the proper activation of the voltage centering resistors, facilitating effective ground fault detection mechanisms. Conversely, if another location within the system is providing centering resistance, JP1 should be omitted to prevent conflicting configurations and ensure proper functionality.


  • DC Battery Power Application:
    • DC battery power is initially applied to terminals DCHI and DCLO.
    • This power then flows through a 30A DC circuit breaker before entering a filter assembly situated beneath the IS200JPDF circuit board.
    • The output from the filter assembly passes through a series diode to reach the JPDF circuit board.
  • AC Power Application:
    • AC power is applied to the JAF1 connector.
    • The 115/230 V AC power is distributed to two connectors, namely JZ2 and JZ3.
    • These connectors then route the AC power to two DACA modules.
    • The modules function to convert the AC power to 125 V DC.

The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200JPDFG1ACA?
It is a power distribution module developed by GE under the Mark VIe series.

Which connector should be used to power TBCI boards when powered by JPDF?
TBCI boards should use connector J12 with a JPDD fan-out board. This connector provides a coordinated 44 ohm source impedance that matches the circuit ratings of TBCI boards.

Which connector should be used to power the TRPG/TREG board pair?
The TRPG/TREG board pair, being critical to system operation, should be powered by the dedicated J7 connector.

When should JP1 be used?
Use JP1 if JPDF is providing bus voltage centering resistors for ground fault detection.