Ventilation System - Easy Electronics xLogic Micro PLC User Manual

customer to leave.
Trigger electromotor for opening door
The output Q1 is switched on and triggers electromotor, when:
Operate control switch I5(the door is open all the time)
l
The detector indicates that somebody is approaching to the door.
l
The door has not been opened entirely (I4 limit switch is not off.).
l
Trigger electromotor for closing door
Operate control switch I6(the door is closed all the time )
l
The detector indicates that nobody is approaching the door.
l
The door had not been closed entirely (I3 limit switch is not off).
l
Buzzer
Connect the buzzer to output Q3.When the door is going to be closed; the buzzer
gives off sounds for a short time (1s in this example). To attach buzzer, need to
connect the following circuit program to output Q3.

7.3 Ventilation system

251