Description

The General Electric IS220PPROH1A is a turbine-specific I/O module engineered to deliver a direct interface to critical turbine field devices. Designed for the Mark VIe and Mark VI Speedtronic series, this Backup turbine protection I/O pack minimizes the necessity for external instrumentation while enhancing operational reliability and lowering long-term maintenance requirements. The hardware functions by monitoring the status and operation of designated trip boards through comprehensive feedback signals. It natively supports both Triple Modular Redundancy (TMR) and simplex backup protection architectures. The module is equipped with a high-speed processor, a hardware reset circuit, a watchdog timer, and an internal sensor for temperature monitoring. Communication is facilitated through two fully independent 10/100 Ethernet ports. The physical assembly is a side-vented, special modular Mark VI Series version featuring an A-rated functional product revision and a conformal PCB coating applied chemically to the entire base board.

Features

• Provides direct interfacing to specific turbine field devices.
• Supports TMR (Triple Modular Redundancy) and simplex backup protection setups.
• Integrates a high-speed processor with a built-in hardware reset circuit and watchdog timer.
• Includes two fully independent 10/100 Ethernet ports for network communication.
• Features an internal sensor dedicated to hardware temperature monitoring.
• Equipped with a front faceplate displaying the component ID number and paired LED indicators for PWR/ATTN, LINK/TxRx, ENET1, and ENET2.
• Processes three speed signals: deceleration, acceleration, and overspeed.
• Utilizes a hardware-implemented overspeed mechanism.
• Protected by an exhaustive thin layer of chemically-applied conformal PCB coating.
• Designed as a side-vented IS220 special assembly.

Applications

• Aeroderivative Turbine Emergency trip applications.
• Turbine specific field device interface monitoring.
• Hazardous location installations when paired with approved terminal boards.

Technical Specifications

Installation Guidelines

• The module typically interfaces with the TREAH_A terminal board.
• Ensure the device connects only to either barrier or box-type terminal blocks.
• Adhere strictly to field wiring restrictions for voltage sensing, which limits the cable length to a maximum of 1,000 feet utilizing 18 AWG wiring.
• Note that the module cannot be auto-reconfigured when swapping a BPPB P-Pack with a BPPC P-Pack.
• The I/O pack and terminal board combinations are explicitly approved for use in hazardous locations.