181
181
181
181
6
6
6
6 .2.1
.2.1
.2.1
.2.1 Standard
Standard
Standard
Standard solution
solution
solution
solution
As long as the detector B1 or B2 detects someone approach, the switch K3 will be on and open
the
door .
If the two detectors don ’ t detect person in a short time, trigger K4 and close the
door .
6
6
6
6 .2.2
.2.2
.2.2
.2.2 The
The
The
The scheme
scheme
scheme
scheme of
of
of
of ELC
ELC
ELC
ELC 18
18
18
18 AC
AC
AC
AC
Required components:
K1 open contactor
K2 close contactor
S1(break contact) close limit switch
S2(break contact) open limit switch
B1(make contact) outdoor infrared action detector
B2(make contact) infrared action detector inside
xLogic function block circuit program:
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