14
Common Alarm Group Relay [GP]
Alarm channels can be connected to an internal common alarm group relay (GP), which is normally
used to indicate to remote equipment that an alarm has occurred in a local panel. The Relay output
contact state is set using LK3
on the SPR card to be either normally open or normally closed. The
contact will change state when an alarm occurs and remain in the alarm state until all faults have
returned to normal.
Reflash Function
After acknowledge if a new alarm occurs the relay will momentarily drop out and re-activate to indicate
that another alarm has occurred. The reflash function ensures that when monitoring the alarms from a
remote location, users are fully aware of alarm activity on the unit.
Dual Audible Alarm Feature
UC625 systems are supplied as standard with two integral audible alarms designated critical audible
and non critical audible. Each pair of alarms can be set to operate the associated audible.
Dual Horn Relays [HNA-HNB]
All units are supplied with dual integral horn relays one for critical alarms – HNA and one for non-
critical alarms – HNB. Each pair of alarms within the unit can be set to operate either or both of the
relays as required. When an alarm occurs the horn relay contact will change state and the contact will
remain in the alarm state until the ack or mute pushbutton has been pressed or the automatic ack
timer has activated. The Customer can disable the automatic timer circuit if required as described later
in the manual.
Dual Power Monitoring Relays
Two integral power monitor relays are provided as standard, one monitors the primary supply and one
monitors the secondary supply input. The power monitor relays are factory set to be normally
energised and will de-energise if the primary or secondary supply fails. Each coil of the relay can be
set to be normally energised if required and the relay contact can be set, using LK1 (Supply 1) and
LK2 (Supply 2) on the SPR card, to normally open or normally closed.
Содержание UC625 series
Страница 1: ...1 UC625 Compact Alarm Annunciator Rev 17...