GE IS220PPRFH1A Analog I/O Pack

Technical Specifications

Model: IS220PPRFH1A

Part Number: IS220PPRFH1A，336A4940CSP20

Brand: GE（GE Vernova）

Product Type: Basic analog input‑output I/O pack

Matching System: GE Speedtronic Mark VIe distributed turbine control system, matched with corresponding terminal board

Power Supply:24VDC auxiliary power supply, working voltage 22.5‑28.5VDC

Signal Type:Multi‑channel analog input and analog output, support 4‑20mA, 0‑10V signal

Communication:Dual‑port 10/100Mbps IONet redundant Ethernet interface

Diagnostic Port:IR infrared local diagnostic service port

Connector:Backplane connector for rack connection, mate with external signal terminal board

Redundancy Mode:Support simplex, dual and TMR triple‑modular redundant configuration

Indicator:Front‑panel LED indicators for power, link and channel fault status

Installation:Mark VIe rack plug‑in installation, hot‑swap supported

Operating Temperature:‑40℃ ~ +70℃, non‑condensing

Protection Class:IP20

Weight:0.68kg

Dimension:159mm ×108mm ×30mm

Compatible System:Gas‑steam turbine, generator unit, combined‑cycle power plant control cabinet

Core Function

Basic analog I/O pack for Mark VIe turbine control system. It collects analog process signals such as pressure, flow and valve position from field equipment, and outputs analog control signals to drive field actuators. Transmit data to main controller through dual‑port IONet redundant Ethernet. Support TMR triple‑modular redundant architecture, complete analog signal acquisition and output control for turbo‑generator unit, realize closed‑loop regulation of process parameters.

Product Details

The IS220PPRFH1A (336A4940CSP20) is PPRF series basic analog I/O pack for GE Speedtronic Mark VIe distributed turbine control system.

This hot‑swappable compact I/O pack is installed in Mark VIe standard rack and works with supporting signal terminal board for field analog signal wiring. It receives 4‑20mA and 0‑10V analog signals from on‑site transmitters, converts analog quantity into digital data and uploads to main controller; meanwhile converts control commands into analog output signals to control valves and actuators. Dual‑port IONet redundant Ethernet ensures reliable data interaction with main controller. IR infrared diagnostic port supports on‑site parameter checking and fault diagnosis without upper computer. Front‑panel LED indicators help technicians observe running status and locate channel failures rapidly.

Conformal coated circuit board improves anti‑vibration, moisture‑proof and anti‑electromagnetic‑interference performance, adapts to harsh working environment of power‑plant turbine hall. Module supports automatic configuration after replacement and shortens equipment maintenance downtime.

It belongs to general‑purpose analog signal processing spare‑part for Mark VIe turbine control system, widely used in overhaul and renovation projects of gas‑steam turbo‑generator units.

It is important spare hardware for analog loop debugging and defective IS220PPRFH1A pack replacement.