IS220PAICH1B

Product Description

Produced by General Electric the IS220PAICH1B model 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. 

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, and IS200TAIH2A. 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. 

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.