KBR multicomp D6 7 Series - Page 91

V7.00
24905_EDEBDA0272-5019-1_EN
91
The temperature parameters contain the general activation and deactivation of the
temperature measurement and the switching behavior resulting from this. In addition,
the switching threshold and hysteresis for the fan control and the switching threshold
and hysteresis for the overtemperature switch-o can be set here. The following parame-
ters are available for switching thresholds and hystereses:
Switching
threshold fan
= 0 to 70°C / hysteresis = 0°C to 25°C
Operating point
alarm
= 0 to 70°C / hysteresis = 0°C to 25°C
Operating point
overtemperature
= 0 to 70°C / hysteresis = 0°C to 25°C
The default settings are:
Switching
threshold fan
= 28°C / hysteresis = 5°C
Operating point
alarm
= 45°C / hysteresis = 5°C
Operating point
overtemperature
= 48°C / hysteresis = 5°C
This means that the fan switches on when 28°C is exceeded and switches o again when
temperature drops below 23°C. The overtemperature alarm is triggered when 45°C are
exceeded and is reset when the temperature drops below 40°C. The overtemperature
stage switch-o is activated when 48°C are exceeded. After the temperature has dropped
below 43°C, the stages are hooked up again if required, after the discharge time has
elapsed.
The overtemperature switch-os for the individual stages are added together so that it
can be determined later on whether, and in which cabinet, there are temperature prob-
lems.
NOTE
To prevent unnecessarily frequent switching of the fan, it has a run-on time of 30 minutes.
System operation