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Applications
8.2.2
Conventional solution
Auxiliary circuit
L1
K3
S2
K2
K1
N
Open
When someone enters the detection range of one of the
motion sensors B1 or B2, the door opening motion is initiated
by setting K3.
After the detection range of the two motion sensors has been
cleared at least for a minimum time, K4 enables the closing
motion.
8.2.3
Door control system with IDEC SmartRelay
IDEC SmartRelay can simplify this circuit considerably. You
only need to connect the motion sensors, limit switches and
the contactor relays to the IDEC SmartRelay.
270
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
K3
B1
B2
S1
K1
K2
K3
Close
Open door
S2
K3
K3
K4
B1
B2
K4
Waiting time
IDEC SmartRelay Manual
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