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LOGO! Manual
A5E00067781 01
8.2.2 Previous Solution
K1 K2
K2 K1
K3 K3
Open Close
S2 S1
K3
B1 B2 K3
K4
K4
B2
K3
B1
S2
Open door Waiting time
Auxiliary circuit
L1
N
As soon as one of the motion detectors B1 or B2 registers
somebody’s presence, the door is opened by K3.
If the two motion detectors detect nothing for a minimum
period, K4 enables the close operation.
8.2.3 Door Control System with LOGO!
LOGO! allows you to considerably simplify the circuit. You
need only connect the motion detectors, the limit switches
and the master contactors to LOGO!.
Applications
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