IS200SPROH1AAA - Backup Protection Terminal Board

SPECIFICATIONS:

Part Number: IS200SPROH1AAA
Manufacturer: General Electric
Series: Mark VIe
Number of relay channels: 12
Product Type: Backup Protection Terminal Board
Generator and bus voltage sensors: 2
Magnetic speed pickup pulse rate range: 2Hz
Power Requirements: +5 V dc, 6 A
Power supply voltage: 24 V dc
Magnetic speed pickup sensitivity: 27 mV
Mounting: DIN-rail mounting
Technology: Surface mount
Operating temperature: 30 to 65�C
Size: 15.9 cm high x 17.8 cm
Repair: 3-7 Days
Availability: In Stock
Country of Origin: United States
Manual: GEH-6721D

FUNCTIONAL DESCRIPTION:

IS200SPROH1AAA is a Backup Protection Terminal Board manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Gas Turbine Control Systems. The SPRO terminal board is a critical component in the Mark VIe series, designed to interface seamlessly with the PPRO I/O pack. Its primary function is to condition speed signal inputs received from the system before sending them to the PPRO, ensuring accurate monitoring and control of generator operation. Additionally, the board incorporates a pair of potential transformers (PTs), which are used to measure and regulate bus and generator voltages, providing precise input signals for the control system.

The SPRO terminal board allows direct mounting of a single PPROH1A module, simplifying installation and reducing the need for additional cabling. For interfacing with backup protection systems, it includes a DC-37 connector that accommodates a cable to the selected backup trip relay terminal board. Adjacent to the PPRO pack connector, there is a secondary DC-37 pin connector, enabling a cable to be connected to a Mark VIe backup trip relay terminal board. This dual-connector setup ensures flexible integration with both primary and backup protection systems, enhancing reliability and safety. There are two variations of the SPRO terminal board based on terminal type:

• SPROH1A: Features 24 barrier terminals arranged in a pluggable block. These barrier terminals provide secure and organized connections for speed signals, voltage inputs, and other control signals, making maintenance and replacement straightforward.

• SPROH2A: Features 24 pluggable Euro-style box terminals, which allow for quick connection and disconnection of wires. This design is especially useful in applications requiring frequent maintenance or upgrades, providing a more modular and flexible approach to terminal management.

INSTALLATION:

The SPRO and a plastic insulator mount on a sheet metal carrier, which mounts on a DIN rail. Optionally, the SPRO and insulator are mounted on a sheet metal assembly, which bolts directly into a panel. Speed signals and PT inputs are wired directly to the terminal block using typical #18 AWG wires. The SPROH1A barrier terminal block is removable for board replacement. The SPROH2A Euro-Block type terminal block has terminals that can be removed for board replacement. The PPRO I/O pack mounts directly on connector JA1 of the SPRO. A DC-37 pin conductor cable plugs into connector JA3 of SPRO with the other end attached to the selected backup trip terminal board.

• Speed signal inputs and potential transformer (PT) voltage inputs are connected using standard #18 AWG wires, which are widely used for control and instrumentation circuits.
• For the SPROH1A, the barrier terminal block is designed to be removable, allowing for easy replacement of the board without disturbing other wiring or components.
• For the SPROH2A, the Euro-style box terminals allow individual terminals to be removed or replaced as needed, simplifying maintenance and minimizing downtime.
• The PPRO I/O pack is mounted directly onto connector JA1 of the SPRO, establishing a secure and reliable interface for speed and control signals. Additionally, a DC-37 pin conductor cable plugs into connector JA3 of the SPRO; the other end of this cable connects to the selected backup trip terminal board, completing the interface with the system�s backup protection circuitry.

OPERATION:

The SPRO terminal board organizes its connections to efficiently interface with the PPRO I/O pack and backup protection systems. Terminals 1�4 are dedicated to potential transformer (PT) inputs, providing accurate bus and generator voltage measurements to the control system. Terminals 19�24 carry three-speed signal inputs for generator monitoring. Terminals 7�15 are reserved for future control feature expansion and are internally routed to the JA1 PPRO connector, allowing easy integration of new functionalities without major rewiring. Terminals 5�6 and 16�18 have no current connections, leaving space for optional future features.

The board also features JA1 and JA3 connectors, which serve as primary interface points. The PPRO I/O pack mounts directly on JA1, while JA3 accommodates a DC-37 pin conductor cable connecting to the selected backup trip terminal board. This structured arrangement ensures modular, serviceable, and reliable signal routing, simplifying maintenance while supporting both primary control and backup protection functions within the Mark VIe system.

WOC offers the largest inventory of General Electric Distributed Control System (DCS) replacement parts, including both unused and expertly rebuilt components, all supported by a comprehensive warranty to ensure reliability and peace of mind. Our experienced automation specialists are available around the clock to provide technical guidance, assist with OEM requirements, and help select the right parts or repair solutions for your system. We are committed to delivering fast, reliable service, whether you need parts for immediate replacement, system upgrades, or specialized repairs. For pricing, availability, or service inquiries, simply reach out to our team via phone or email, and we will provide timely support to keep your DCS and automation systems running efficiently and with minimal downtime.

FREQUENTLY ASKED QUESTIONS:

What is the IS200SPROH1AAA?

The IS200SPROH1AAA is a Backup Protection Terminal Board from GE Mark VIe series, used in Distributed Gas Turbine Control Systems. It hosts a PPRO I/O pack, conditions speed signals, and includes potential transformers (PTs) for bus and generator voltage measurement. The board ensures reliable monitoring and provides backup protection for turbine operations.

How does it interface with the PPRO and backup trip systems?

The PPRO I/O pack mounts directly on the JA1 connector for secure processing of speed and voltage signals. A DC-37 connector (JA3) connects the board to a Mark VIe backup trip relay terminal board, enabling reliable integration with backup protection circuits. This setup allows modular installation and straightforward maintenance.

How are signals routed through the SPRO board?

PT inputs are connected to terminals 1�4, while three-speed inputs are on terminals 19�24. Terminals 7�15 are reserved for future control expansion and are internally routed to the JA1 connector for PPRO integration. Terminals 5�6 and 16�18 are unconnected, leaving space for optional features or upgrades.