Name: General Electric/GE IS220PPROS1B Turbine Protection I/O Pack Manufacturers Suppliers - PLC Leader
Brand: PLC Leader
SKU: 255639553

General Description

The GE IS220PPROS1B is a state-of-the-art Turbine Protection I/O Pack, designed to ensure the safety, performance, and reliability of industrial turbine operations. This protection module is a part of the GE Mark VI control system, which is widely trusted in critical industrial applications, including power generation, oil, and gas, and large-scale mechanical operations. It ensures robust input and output signal processing, providing real-time protection and monitoring to safeguard turbines against potential faults, ensuring system uptime, and prolonging operational efficiency.

Function Description

IS220PPROS1B is an Emergency Turbine Protection I/O Pack manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Control Systems. A backup Overspeed protection system with a backup check for generator synchronization to a utility bus is provided by the Emergency Turbine Protection I/O pack (PPRO) and related terminal boards. They also serve as the primary control's independent watchdog. Three triple modular redundant (TMR) PPRO I/O packs mounted to a separate simplex protection (SPRO) terminal board make up a typical protection system. Each SPRO is connected to the designated emergency trip board by a cable with DC-37 pin connections on both ends:

TREG: Gas Turbine Emergency Trip Terminal Board.
TREL: Large Steam Turbine Emergency Trip Terminal Board.
TRES: Small/Medium Steam Turbine Emergency Trip Terminal Board.
TREA: Turbine Emergency Trip Terminal Board.

Installation instructions

The Mark VIe SPRO or TREA terminal board accepts the PPRO's direct mounting. Cables with DC-37 pin connections on both ends are necessary between the SPRO board and the chosen trip terminal board when placed on an SPRO board. The following are the installation steps:

Install the SPRO or TREA terminal board firmly. If SPRO is used, mount the chosen trip terminal board.
If TREA is not utilized, connect a cable with DC-37 pin connections on both ends between SPRO and the chosen trip terminal board.
Directly connect three PPRO modules to TREA or one PPRO module to each SPRO.
PPRO's threaded posts, which are situated on either side of the Ethernet ports, should be slid into the openings in the mounting bracket for the terminal board.
To ensure a tight fit between the PPRO's DC-62 pin connector and the terminal board, adjust the bracket's position. Secure the mounting bracket firmly.
Only one adjustment should be necessary during the lifespan of the product. Lock PPRO in place by firmly tightening the nuts on the threaded posts.
Depending on the setup of the machine, connect either one or two Ethernet wires. The PPRO module chooses the appropriate operation over either port and is not sensitive to Ethernet connections.

operation

The I/O pack or module function-specific acquisition board is connected to the processor board. The soft-start circuit ramps up the voltage available on the processor board when input power is applied. The processor reset is turned off and the local power supply is turned on in order. After finishing self-test routines, the processor loads application code from flash memory that is particular to the I/O pack or module type. To verify that the application code, acquisition board, and terminal board are correctly matched, the application code reads the board ID information. When there is a good match, the processor makes an effort to start Ethernet connections by asking for a network address.

The whole circuitry required to enable the I/O pack to function from one or two Ethernet inputs is contained in the processor application code. Both network pathways are constantly active when two Ethernet inputs are used. The I/O pack or module operation will not be hampered by a failure of either network, and the functioning network connection will reveal the failure. Compared to a traditional hot-backup system, where the second port is only used when the primary port fails to function, this configuration is more fault tolerant. The processor's Ethernet ports automatically negotiate between half-duplex and full-duplex operation at speeds between 10 MB/s and 100 MB/s. Each Mark VIe Ethernet I/O pack or module shares a processing board. It has the following in it:

A fast CPU with flash memory and RAM.
Two connectorized, totally independent 10/100 Ethernet ports.
A hardware reset circuit and watchdog timer.
A temperature sensor inside.
LEDs that display status.

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