6
4 - CONNECTION EXAMPLES
Connections of a solenoid valve Normally Closed without intrinsic Safety
Ph
N
PH
N
4
5
6
7
8
9
10 11 12
Power supply
230 V
AC
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
Fault
st Threshold
nd Threshold
Solenoid valves
1
2
Alarm
Manual Alarm
Connections of a solenoid valve Normally Closed with intrinsic Safety
Ph
N
PH N
4
5
6
7
8
9
10 11 12
Power supply
230 V
AC
C
NC
NO
C
NC
NO
C
NC
NO
C
NC
NO
Control unit power supply and connection of a solenoid valve with sirens to 12 VDC trough
an
and recharge battery.
external power supply
It's not possible to connect directly solenoid
valves or sirens 12V.dc. to the control unit
Power supply 230/12V
Diode
1N 5406
3 2 1
Probe 1
3 2 1
Probe 2
3 2 1
Probe 3
Solenoid valve GAS and Sirens
12 VDC
12 V
+
+
1
2
3
4
5
6
7
R1 R2
R3
Fault
st Threshold
nd Threshold
Solenoid valves
1
2
Alarm
Manual Alarm
external
push-button
(N.C.)
external
push-button
(N.C.)
