GE IS220PCLAH1B Core Analog I/O Module

GE IS220PCLAH1B Core Analog I/O Module

Functional Description

The IS220PCLAH1B Core Analog I/O for Aero-derivative gas turbines (PCLA) and associated Core Analog

(SCLS and SCLT) terminal boards provide a large portion of the analog signal I/O required to operate an

engine. PCLA and SCLT provide thermocouple inputs, RTD inputs, voltage inputs, and 4-20 mA current loop

inputs and outputs. PCLA can be applied in simplex controller simplex I/O, dual controller simplex I/O, dual

controller TMR I/O and TMR controller TMR I/O control systems. A single SCLT terminal board fans signal

inputs to one or three connected PCLA(s).

The signals on TMR PCLAs are separated into two groups. Signal inputs that can be fanned from a single

input into a TMR PCLA are routed through the SCLT terminal board. Signals that are dedicated to a single

TMR PCLA are wired to the terminals on SCLS.

SCLT is the terminal board, which can be used either for simplex Input/Outputs or for fanned Inputs,

redundant Outputs. When the SCLT is used with a simplex PCLA module, the concept of fanning does not

apply. Instead, the SCLT serves as a simplex I/O expansion board.

Technical Specifications