Relay Basics - ADEMCO via30 Installation Instructions Manual

Relay Basics Relavs can be used to Derform manv different functions and actions. In this svs-
Output Relay Advisory
I
If a reki-y is energized before
a wired smoke detector is
reset, the re/ay wi// be
stopped by the interruption
of Aux. Power that resets
the smoke detector. If this is
not desired, the power to
the relay unit should be
supplied from another 12V
power source (e.g., the
same source that is power-
ing external equipment
through the relay contacts). I
tern, ~ach relay must be programmed as to how to act (ACTION), when to activ~te
(START), and when to deactivate (STOP). Each of these is summarized briefly
below, but described later in detail in the programming procedure for fields "80
and '81.
1. ACTION: The "ACTION" of the relay is how the relay will respond when it is
activated by the "START" programming. There are 4 different choices of
actions:
CLOSE for 2 SECONDS and then reset.
CLOSE and remain activated until deactivated by "STOP" programming.
PULSE ON and OFF until deactivated by "STOP programming.
NO RESPONSE is chosen when the relay is not used.
2. START: The "START" programming instructs the relay when and under
what conditions to activate. There are 3 parts to be programmed:
EVENT instructs the relay what condition must occur to the zone(s) pro-
grammed into the "ZONE LIST" in order to activate the relay. The
"EVENT" and "ZONE LIST" work together. The 4 different choices for
"EVENT" are listed in the P/?OGRAMfd/NG section for field '80.
ZONE LIST is a fist of zones selected by the installer in field 81.When an
event occurs as assigned by "EVENT" on any zone within that list, the
relay will activate as selected in '"ACTION". In this way, many zones can
be assigned very easily to a single event. For example: You may wish
a relay to activate (perhaps to activate a strobe for a visual indication)
whenever any zone in a group of zones is fau/ted.
ZONE TYPE/SYSTEM OPERATION. Instead of using a "ZONE LIST" and
"EVENT", a specific zone (response) type or system operation action
can be selected to activate the relay.
If a specific "ZONE TYPE" is chosen, any zone of that re-
sponse type going into alarm, trouble, or fault will cause the relay to ac-
tivate as selected in "ACTION". Any zone of that type that restores will
deactivate the relay.
If a "SYSTEM OPERATION'" is chosen, that operation will cause
the relay to activate as selected in "ACTION".
The different choices for "ZONE TYPE and '"SYSTEM OPERATION"
are listed in the PROGRAMMING section for field 480.
3. STOP: The "STOP programming instructs the relay when and under what
conditions to deactivate. The 2 parts to be programmed are:
RESTORE ZONE LIST. If a "RESTORE ZONE LIST" is used, the relay will
deactivate when all the zones in that list restore from a previous fault of
alarm condition. This will occur regardless of what is programmed to
"STAR~ the relay; therefore, a "RESTORE ZONE LIST" would nor-
mally only be used when a "ZONE LIST' is used to start the relay.
ZONE TYPE/SYSTEM OPERATION. Instead of using a "RESTORE
ZONE LIST", a specific zone (response) type or system operation ac-
tion can be selected to deactivate the relay.
If a specific "ZONE TYPE" is chosen, any zone of that re-
sponse type that restores from a previous alarm, trouble, or fault condi-
tion will cause the relay to deactivate.
If a "SYSTEM OPERATION" is chosen, that operation will cause
the relay to deactivate.
The different choices for "ZONE TYPE" and "SYSTEM OPERATION"
are listed in the PROGRAMMING section for field 80.
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