bolid Signal-10, Руководство пользователя

Страница: 23 / 98

Signal-10 Operation Principles
23
www.bolid.com
When the alarm loop is armed, either any skip of the resistance value (by more than 10%), or actuation
of the detector (opening of its alarm contact), or tamper switch actuation causes the loop to be consid-
ered as being in the Intrusion Alarm status. When the alarm loop is disarmed, either tamper switch ac-
tuation or loop short circuit failure causes the alarm loop to be considered as being in the Tamper Alarm
status.
An alarm integration time for this type of alarm loops can be 70 ms or 300 ms depending on the pro-
grammed value of the 300-ms Integration Time parameter.
Table 2 shows the matching between current resistance values and corresponding statuses of alarm
loops of the Type 5.
The wiring diagram for including an intrusion detectors and its tamper switch into an alarm loop of the
Type 5 is presented on the page 66.
Auxiliary Alarm Loop (Type 6)
Auxiliary alarm loops (loops of the Type 6) are intended to monitor operability and conditions of fire
fighting equipment as well as sensors and indicators not related directly with fire or intrusion alarms.
Devices with dry contact (both normally closed and open) or open collector outputs can be included into
such alarm loop.
This loop is considered to be in one of the following statuses:
Auxiliary Zone Restored
Auxiliary Zone Alarm
If the resistance of the alarm loop of the Type 6 has been out of the normal range for more than
300 ms, then the alarm loop is considered to be in the Auxiliary Zone Alarm status. When the loop is
restored (that is, its resistance ahs been within normal range for more than Arming Delay seconds), the
loop is considered to be in the Auxiliary Restored Status.
Table 2 shows the matching between current resistance values and corresponding statuses of alarm
loops of the Type 6.
An auxiliary alarm loop is always monitored; it cannot be blocked or disarmed. If the arming command
addressed to this loop is received, the device responds with the message about its current status.
When a status of an Auxiliary alarm loop has changed the Signal-10 transmits a relevant message to a
network controller. The events related to Auxiliary alarm loop are not stored in the Signal-10 non-
volatile memory. Thus, if a status of an Auxiliary alarm loop has changed several times during commu-
nication loss, after communication having restored the network controller receives either a single last
message or no message if the current status of the loop is just like as the last transmitted status.
If an Auxiliary alarm loop is related to a Signal-10 relay output, then its breaking locks starting the relay
in accordance with executive programs ##1 – 8 (general-purpose), #11 (ASPT), #2 (Siren), #33