EMERSON IC693MDR390 24VDC 8-Point Input/Relay Output Module

The 24 volt DC Input/Relay Output module for the Series 90-30 Programmable Logic Controller provides 8 input points with one 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 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.