MAXinBOX FC 0-10V VALVE
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19
2.5.1.1
ALARMS
The Alarms function allows changing the state of the fan coil unit on the reception of an
alarm trigger from the KNX bus, being possible to configure both the target valve
opening level and the target fan speed.
Cyclically monitoring
the alarm trigger is also possible by defining a certain time
period. The actuator will check that the alarm or no-alarm state is received at least
once before the period expires (note: this check doesn’t take place unless the object
has been received at least once). In case the object stops being refreshed (i.e., the
device does not receive an updated value anymore), the alarm action will be performed
as well, for safety reasons.
Regarding the deactivation of the alarm, it is also possible to configure a simple
deactivation or an
acknowledgement-demanding
deactivation.
Under a simple deactivation, the device will leave the alarm state as soon as
the alarm object recovers its normal value.
Under an acknowledgement-demanding deactivation, the device will only
leave the alarm state until an external acknowledgement (through a separate
object) is received after the alarm object has recovered its normal value.
Note
:
alarms always prevail over any other function (i.e., any orders during the alarm
state will be ignored)
.
MAXinBOX FC 0-10V VALVE incorporates
two independent alarm functions
.
Alarm 1 has a higher priority over alarm 2
. If the fan coil module is under the “alarm
2” state and alarm 1 gets triggered, it will execute the action of alarm 1 and will wait till
alarm 1 gets deactivated (switching then back to the “alarm 2” state, but without
executing again the action of alarm 2). On the other hand, while one channel is in
“alarm 1”, triggering alarm 2 will have no effect: the channel will remain in “alarm 1”
until alarm 1 gets deactivated (in that moment the channel will perform the action of
alarm 2).
