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3-wire proximity switch(PNP) wiring
•
Input terminal
Since there is no built-in DC24V power supply in the controller, external DC24V power supply is
required for input wiring.
•
Input circuit
The input primary circuit and secondary circuit are isolated by optical coupler, and the secondary
circuit is equipped with C-R filter. This is set to prevent misoperation caused by vibration of input
contact or noise mixed with input line. Because of the above reasons, for the changes of input ON →
OFF, OFF → ON, the response time lags about 50us in the programmable controller. Digital filter is
built in the input terminal.
•
Input sensitivity
The input current of the controller is DC24V 7mA, but for reliable operation, when it needs to be
turned on, the current is more than 4.5mA, and when it is turned off, the current is less than 1.5mA.
Encoder input interface
The XSA330-W seriesof industrial intelligent controller supports differential input mode, and the
maximum measurement frequency can reach 1MHz. Its specification parameters and wiring mode are
as follows.
Note: when the counting frequency is higher than 25Hz, please select a high-speed counter.
2-wire proximity switch(PNP) wiring
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