User Manual

Parametrisation
17
Siemens Building Technologies
10.2005
tunnel areas which need different alarm parameters than the rest, like for example
tunnel entrances and exits, which have special temperature profiles.
1 Zone: Traffic Lights
Measuring / Alarm location
8 Zones: Safety Intervention
3 Zones: Emergency Lighting
6 Zones: Cameras
4 Zones: Ventilation System
1 Zones: Alarm Contacts
1 Zone: Traffic Lights
Measuring / Alarm location
8 Zones: Safety Intervention
3 Zones: Emergency Lighting
6 Zones: Cameras
4 Zones: Ventilation System
1 Zones: Alarm Contacts
Fig. 21 Zone determination in a tunnel
It has to be remembered that a total maximum of 128 zones can be defined. The
alarm of 9 zones can directly transmitted with the relay outputs. If more zone
alarms need to be transmitted the RS232 interface has to be used and connected
either via FibroSwitch 2 or directly via its protocol to the fire panel or higher net-
work.
5.3 Choice of Alarm Parameters
For each zone a different set of three alarm parameters can be chosen. Basically
the system gives alarm with three different criteria (see Fig. 22):
1. If a maximum temperature in the zone is exceeded. This temperature can
be set as one parameter.
2. If the maximum temperature in the zone exceeds the zone average tem-
perature by a maximum allowed value. The allowed maximum difference
between T max and the zone average is the second alarm parameter.
3. If at any point in the zone the temperature rise exceeds and allowed maxi-
mum rise. This maximum rise in °C/min is the third parameter