IDEC FL1E-H12RCA User Manual page 286

Applications
Door control system with IDEC SmartRelaycircuit diagram
I1
I2
x
1
I4
x
This is what the circuit diagram of the conventional solution
looks like.
You can simplify this circuit if you make use of the IDEC
SmartRelay functions. You can use the off-delay function to
replace the latching relay and the on-delay. The block
diagram below illustrates this simplification:
Motion 
detector
I1
I2
x
Limit switch
Door open
Limit switch
Door closed
272
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&
T=
4s
x
10 s
I4
I3
1
Q2
RS
I4
1
I3
1
Q1
1
&
Q2
1
1
Q1
IDEC SmartRelay Manual
&
Q1
Open
&
Q2
Close
Q1
Open
&
Q2
Close Close