GE IS200EXHSG2A exciter high-speed relay

Description

GE General Electric Technical Specifications: IS200EXHSG2A

Relay contact life, when switching inductive loads, will approach resistive load contact life if

suppression circuits are used. The following figures IS200EXHSG2A are examples of typical suppression

circuits for AC and DC loads. The 1A, 100V diode shown in the DC load typical suppression

circuit is an industry standard 1N4934. The IS200EXHSG2A resistor and capacitor shown for AC load

suppression are standard components, available from most electronics distributors.

The 24 volt DC Input/Relay Output module for the Series 90-30 Programmable Logic

Controller provides 8 input points with one IS200EXHSG2A common power input terminal, and 8

normally-open relay circuits in the same module. The input circuits are designed to have either

positive or negative characteristics in that they sink or source current to/from the input devices

to/from the user IS200EXHSG2A common and are arranged as one group of 8 inputs. The relay output circuits

are arranged in two groups of four circuits each. Each group has a common power output

terminal.

Input characteristics are compatible with a wide range of user-supplied devices, such as:

pushbuttons, limit switches, and electronic proximity switches. Current through an input results

in a logic 1 in the input status table (%I). Power to operate the field devices must be supplied

by the user.

The normally-open relay circuits are used for controlling output loads provided by the user.

The output switching capacity of each output is 2 amps. The relay outputs can control a wide

range of user-supplied load devices, such as: motor starters, solenoids, and indicators. Power

for the internal relay circuits is provided by the +24 volt DC bus on the backplane. The user

must supply the AC or DC power to operate field devices. There are no fuses on this module.

LED indicators which provide the ON/OFF status of each point are located at the top of the

module. The LEDs are arranged in two horizontal rows with eight green LEDs in each row.

The top row is labeled A1 through 8 (input points 1 through 8) and the bottom row is is labeled

B1 through B8 (relay output points 1 through 8). An insert goes between the inside and outside

surface of the hinged door. The surface towards the inside of the module (when the hinged

door is closed) has circuit wiring information, and circuit identification information can be

recorded on the outside surface. The top half of the outside left edge of the insert is

color-coded blue to indicate low-voltage circuits and the bottom half of the outside left edge is

color-coded red to indicate high-voltage circuits.

This module can be installed in any I/O slot of a 5 or 10-slot baseplate in a Series 90-30 PLC

system.

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