LOGO! manual
EWA 4NEB 712 6006-02
96
Functional diagram of the LOGO! solution
x
T=
1s
Q2
Mo..Su
20:00 – 20.01
Mo..Su
21:00 – 21.01
Switch-off pulse generated by time switch (clock)
I5
T=
1s
Daylight
control switch
x
I5
Switch-off pulse generated by daylight control switch
I1
I2
I3
I4
x
x
Q1
Q4
Q3
Lamp 3
Corridor side
Lamp 4
Corridor side
Lamp 1
Window side
Lamp 2
Window side
Advantages of the LOGO! solution
S You can connect the lamps to LOGO! directly provided the switching
capacity of the outputs is not exceeded. In the case of greater capacities,
you should use a power contactor.
S You connect the brightness-sensitive switch to one of LOGO!’s inputs
directly.
S You do not need a time switch; this function is integrated in LOGO!.
S The fact that fewer switching devices are required means you can install
a smaller sub-distribution unit and thus save space.
S Fewer devices are required.
S The lighting system can be easily modified.
S Additional switching times can be set as required (staggered switch-off
pulses at the end of the day).
S The effect of the brightness-sensitive switch can easily be applied to all
lamps or a changed group of lamps.
Applications
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