System 9000TS
37
Group Relays RL3 & RL4:-
RL3 and RL4 are factory set to operate as group 1 and group 2 common alarm relays.
When an alarm occurs on any within the group the associated relay will change state
and the relay will remain in the abnormal state until the fault has been cleared and the
alarm has been reset.
The coil state of RL3 and RL4 can be set to normally energised or normally de-
energised using switch SW1 positions 3 and 4 on the P925TS-X Interface Cards as
detailed below
Coil Setting (Non-alarm state)
RELAY SWITCH STATE FUNCTION
RL3 SW1-3
OFF De-energised
ON Energised
RL4 SW1-4 OFF
De-energised
ON Energised
1 2 3 4
SW1
OFF
ON
LK11
LK10
LK9
ON
OFF
ON
OFF
24V
110V
CONTACT
VOLTAGE
POWER
FAIL
3
DE-EN
4
DE-EN
SW1-
ON
GROUP B
GROUP A
EN
EN
OFF
