Product Description:
The 12/24 volt DC Negative Logic 0.5 Amp Output module for the Series 90-30 Programmable
Logic Controller provides 16 output points in two groups. Each group has a common power
output terminal. This output module is designed to have negative logic characteristics in that it
sinks current from the loads to the user common or negative power bus. The output device is
connected between the positive power bus and the module output. The output characteristics
are compatible with a wide range of user-supplied load devices, such as: motor starters,
solenoids, and indicators. Power to operate the field devices must be supplied by the user.
LED indicators which provide the ON/OFF status of each point are located at the top of the
module. This LED block has two horizontal rows with eight green LEDs in each row; the top
row labeled A1 through 8 (points 1 through 8)and the bottom row labeled B1 through 8 (points
9 through 16). 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
outside left edge of the insert is color-coded blue to indicate a low-voltage module. There are
no fuses on this module.
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