Esser 8000C - Page 121

Fire Alarm Computer 8000C / M
Page 121
Application examples (A)
Three relays with a common external voltage (default setting)
This application involves feeding an external voltage (e.g. +12V) to terminals 3 and 4 on the
terminal card, this voltage then being switched via the relay to the external device for activation in
the event of an incident occurring.
Switch Contacts Position
S 1 7, 8, 9, 10
closed
S 2 1 + 2
n. o.
Application examples (B)
Two relays with two differing external voltages
This application permits the switching of two different external voltages (e.g., +12V and +24V).
This involves relays K1 and K2 on the micro modules!
Relay K3 is not used!
Switch Contacts Position
S 1 7, 8, 9, 10
open
S 2 1 + 2
n. o.
3-relay module / 3-relay common trouble modu
le
ext. device at relay K1
ext. voltage,e.g. +12 V
-
+
+
+
+
-
-
-
1
2
3
4
5
6
7
8
ext. device at relay K2
ext. device at relay K3
ext. device for relay K1
ext. Voltage for external device
at relay K1, e.g. +12 V
+
+
+
+
-
-
-
-
1
2
3
4
5
6
7
8
ext. Voltage for external device
at relay K1, e.g. +24 V
ext. device for relay K2