Circuit examples
193
1SVC 440 795 M0100
Figure 80: CL circuit diagram for stairwell lighting
Meaning of the contacts and relays used:
• I1: ON/OFF pushbutton
• Q1: Output relay for light ON/OFF
• M1: Marker relay. This is used to block the “switch off
automatically after 6 minutes” function for continuous
lighting.
• T1: Cycle pulse for switching Q1 on and off,
(
ü, single-pulse with value 00.00 s)
• T2: Scan to determine how long the button was pressed.
If pressed longer than 5 s, continuous lighting is switched
on (
X, on-delayed, value 5 s).
• T3: Switch off after a lighting time of 6 min.
(
X, on-delayed, value 06:00 min).
• T4: Switch off after 4 hours continuous lighting
(
X, on-delayed, value 04:00 h).
If you are using the logic relay with a time switch, you can
define both the stairwell lighting and the continuous lighting
periods via the time switch.
The CL circuit diagram for the
above functions is as follows:
The enhanced CL circuit diagram:
after four hours, the continuous
lighting is also switched off.
I1-------TT2
T2-------SM1
I1u------äQ1
T3k
Q1-m1----TT3
q1-------RM1
I1------uTT1
hTT2
T2-------SM1
T1u------äQ1
T3s
T3k
Q1um1----TT3
h------TT4
q1-------RM1
To Next Page
Loading...
