Applications
232
IDEC SmartRelay Manual
Detecting motion
During business hours, the motion detector B1 initiates the
opening of the door when somebody wants to enter the
shop. Motion detector B2 initiates the opening of the door
when somebody wants to leave the shop.
After closing time, the motion detector B2 continues to be
used to open the door for 1 hour to allow the customers to
leave the shop.
Actuating the motor for opening
Output Q1 is set and opens the door when:
• The control switch at I5 is actuated (the door is perma-
nently open), or
• The motion detectors indicate that somebody is ap-
proaching the door, and
• The door has not yet fully opened (limit switch at I4).
Actuating the motor for closing
Output Q2 is set to close the door when:
• The control switch at I6 is actuated (the door is perma-
nently closed) or
• The motion detectors indicate that there is nobody near
the door, and
• The door has not yet fully closed (limit switch at I3).
Buzzer
Connect the buzzer to output Q3. The buzzer gives a brief
warning (in this case 1 second) when the door is closing. En-
ter the following circuit at Q3 in the circuit program:
T= 1 s
x
Q3
Q2
BuzzerBuzzer
Close output
Courtesy of Steven Engineering, Inc. ● 230 Ryan Way, South San Francisco, CA 94080-6370 ● General Inquiries: (800) 670-4183 ● www.stevenengineering.com
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