GE IS200JPDCG1A Mark VI Speedtronic Power Distribution Board

Description

The IS200JPDCG1A functions as a component-dense power distribution board within the General Electric Mark VI Turbine Control System. It combines input and output distribution functions to deliver 125 V dc, 115/230 V ac, and 28 V dc to other terminal boards and packs within steam, gas, or wind turbine management setups. The IS200JPDCG1A acts as the primary hosting module for a Power Distribution System Feedback (PPDA) I/O pack, directly capturing and multiplexing diagnostic feedback signals from both local circuits and daisy-chained upstream distribution boards to facilitate system monitoring via the IONet.

Features

• Integrated PPDA Feedback Support: Hosts the PPDA I/O pack on connector JA1, routing local and daisy-chained diagnostic signals without requiring separate diagnostic transmission lines.
• Multi-Bus Power Distribution: Distributes 125 V dc, 115/230 V ac, and 28 V dc power simultaneously across partitioned board zones.
• Extensive Polyfuse Protection: Includes twenty-six 1.6 A polyfuse-protected outputs for auxiliary device distribution alongside dedicated un-fused high-current controller and switch power connections.
• Upstream Board Daisy Chaining: Equipped with a 50-pin ribbon cable connector (P2) supporting the cascading of up to four additional distribution boards into the PPDA feedback loop.
• Ground Fault Sensing Capability: Features a bus centering circuit activated via jumper JP2, connecting both sides of the 125 V dc bus to functional earth through 84 kOhm resistors for precise fault monitoring.

Applications

• Gas and steam turbine management systems 
• Alternative energy wind turbine control applications
• Automated industrial control cabinets utilizing Mark VI Speedtronic infrastructure 

Ordering Information

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Mounting Orientation: The module must be mounted vertically with the 115/230 V ac input connector (JAC) situated at the bottom. Secure the module base to the panel back-base with four screws via the designated top and bottom mounting holes.
• Module Integrity: To prevent physical damage, do not remove the printed circuit board from its factory-supplied steel mounting plate; always replace the board and backing plate as a single complete module assembly.
• Functional Grounding (FE): Ensure the module is fastened tightly to an underlying sheet-metal surface grounded to the functional earth (FE) network to establish a proper reference point for diagnostic loops.
• Protective Grounding (PE): Separate dedicated earth ground wires must link module screw connections E5 and/or E6 directly to the enclosure protective earth (PE) bus. Grounding paths must handle 60 A for 60 seconds with less than a 10 V drop.
• Filter Placement: Position input line filters immediately on a PE-grounded base or adjacent to the enclosure PE bus using minimal wire lengths to mitigate radio frequency impedance.
• Power Re-energization Delay: After throwing toggle switches SW1R, SW1S, or SW1T to the OFF position, wait a minimum of 30 seconds before re-energizing to prevent destructive inrush voltage damage to connected 28 V dc power supply input circuits.