Wiring Inputs and Outputs
B.1.4 1450 I/O Expansion Module High-Speed Output to PLC Sourcing
Input
High-speed outputs can also be used with a PNP-compatible PLC input if a pull-up resistor (for
example, 2.2K Ohm 0.5W) is connected from the high-speed output to a +24V OUT terminal on
the I/O Expansion Module. In this case, the resistor supplies 24V to the PLC input. The output
will pull the voltage down to 0V, turning off the PLC input. This creates an inversion, with the PLC
input ON when the In-Sight output is OFF, and vice-versa. Use an external NPN to PNP
converter when this inversion is not desired.
Status LEDs on the I/O Expansion Module indicate the state of the outputs. In the case of the two
high-speed outputs, the LEDs will illuminate when the outputs are actively pulled low.
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Содержание In-Sight 1450
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Страница 16: ...Introduction 4...
Страница 32: ...Specifications 3 5 Dimensions Figure 3 5 I O Expansion Module Dimensions 20...
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