GE IS220PRTDH1A PRTD RTD Input Pack Modul

Technical Specifications

Model: IS220PRTDH1A

Part Number: IS220PRTDH1A

Brand: GE（GE Vernova）

Product Type: PRTD RTD input processing pack

Matching System: GE Speedtronic Mark VIe distributed turbine control system

Power Supply:24VDC ±10%, max 8.5W

Input Channels:8‑channel galvanic isolated RTD input

Supported Sensors:Pt100, Cu100, Ni100; support 2‑wire,3‑wire,4‑wire wiring

Isolation:2500VAC RMS field‑to‑backplane galvanic isolation

Communication:Dual RJ45 100Mbps IONet redundant Ethernet interface

Resolution:14‑bit ADC

Accuracy:Typical ±0.1℃

Installation:Mark VIe I/O cabinet plug‑in pack installation

Operating Temperature:‑30℃ ~ +65℃, non‑condensing

Protection Class:IP20

Weight:0.70kg

Dimension:159mm ×108mm ×30mm

Compatible System:Power plant gas‑steam turbine, generator set control cabinet

Core Function:PRTD RTD processing pack for Mark VIe turbine control system. It works with external RTD terminal boards, collects resistance temperature signals of turbine bearings, casing and generator winding. Completes signal conversion, lead‑wire resistance compensation and data processing. Realizes high‑precision temperature monitoring, thermal protection and over‑temperature alarm for turbo‑generator units. Supports simplex, dual and TMR redundant system architectures.

Product Details

The IS220PRTDH1A is PRTD series RTD input processing pack for GE Mark VIe Speedtronic distributed turbine control system.

This compact I/O pack is plugged into Mark VIe standard I/O cabinet, matched with external RTD terminal boards to acquire field thermal resistance sensor signals. It supports multi‑wiring mode for various RTD sensors, with built‑in lead resistance compensation function to reduce measurement error caused by long‑distance field cables. Dual‑port redundant IONet Ethernet realizes stable real‑time data interaction with system main controller, converts resistance signals into accurate digital temperature values, provides key temperature data for turbine protection, interlock and process control logic.

It supports channel open‑circuit, short‑circuit and signal abnormality diagnosis, can upload fault codes and alarm records to upper controller. Conformal coated circuit board enhances anti‑interference and anti‑vibration performance, adapts to complex electromagnetic environment of power‑plant turbine hall. It meets hazardous area application requirements.

It belongs to core temperature acquisition spare‑part of Mark VIe system, widely used in overhaul and renovation projects of gas‑steam turbine generating units.

It is important spare hardware for turbine temperature measuring loop debugging and defective IS220PRTDH1A pack replacement.