GE IS220PAICH1B Analog I/O Module

IS220PAICH1B Customized Product Hardware

Produced by General Electric the IS220PAICH1B module is an analog input/output pack part of the Mark VI series.

This model is the second version of the PAIC units and operates on a different minimum

voltage compared to that of the previous version of the PAIC pack.

The minimum voltage for this specific unit is twenty-two and a half volts of direct current.

The nominal power supply used with this model is twenty-four or twenty-eight volts of direct current.

The IS200TBAIH1C model is a barrier-type terminal box and requires a minimum 

wire size of 22 AWG when being connected and used with the IS220PAICH1B pack.

This IS220PAICH1B PCB is actually not the originally-developed GE Mark VI Series

product of its specific functional role; as that would be considered the IS220PAICH1

parent PCB notably missing this IS220PAICH1B device's sole B-rated functional product revision.

While the IS220PAICH1B pack is being used in the Mark VI series it can be used with

some accessories otherwise known as terminal boards; the terminal boards used with

this specific analog I/O pack are all IS200 boards and are:

IS200TBAIH1C

IS200TAIH1A

IS200TAIH2A

IS220PAICH1B Pack Diagnostics

There are specific alarms that will come about when this model is in use,

one of the alarms is labeled as 82-83 which focuses on the output and indicates 

that the suicide relay within the IS220PAICH1B pack is non-functional.

The possible cause of this alarm is often that the suicide relay command in the pack

does not match the associated feedback, the hardware has failed, or a relay failure

has occurred on the acquisition board. The main solution to this problem is replacing the I/O pack itself.

The IS220PAICH1B pack can be used in many different locations including hazardous

and non-hazardous locations, the certification for the non-hazardous location in accordance with

this model is UL E207685.This IS220PAICH1B device is not surrounded by any 

extreme wealth of originally-released instructional manual materials;

almost certainly a reflection of its attribution to the Mark V Turbine Control System Series

that suffered a manufacturer-led production and documentation discontinuation.

The IS220PAICH1B functional product number begins with a dual-functional initial naming

chunk in its IS220 series tag specially designed to indirectly reveal the IS220PAICH1B

product's normal Mark V Series assembly iteration as well as its domestic original manufacture location.

Some of the other important hardware details embedded in the IS220PAICH1B

functional product number include this IS220PAICH1B device's:

PAIC functional product acronym

Conformal PCB coating style

Group one Mark V Series product grouping

B-rated primary functional revision