ABB i-bus KNX Product Manual page 78

ABB i-bus® KNX FUNCTION
The alarm position of the blind/shutter can be set individually for each output. If several wind alarms are
assigned to an output, they will be linked by a logic OR.
The order of priority of alarms can be defined in the Order of priority of weather alarm, disabling and
forced operation.
In case of a weather alarm, the blind/shutter cannot be operated via other group objects, manual op-
eration or the i-bus® Tool until the weather alarm is canceled. Travel range limits are not taken into ac-
count with weather alarms.
The sensors can be cyclically monitored by the device, and they can cyclically send the alarm status to
the device. If the device does not receive the alarm status within a defined monitoring time, the device
assumes that the sensor is faulty or communication is interrupted. The blind/shutter is moved to the
defined alarm position and disabled for all outputs upon which the alarm acts.
The monitoring cycle in the device should be at least four times as large as the cyclic transmission time
of the sensor. As a result, the parameterized alarm reactions will not be triggered immediately if a sig-
nal is missing (e.g. due to high bus load).
When a wind, rain or frost alarm is canceled, the blind/shutter will be moved to the position defined in
the parameter Position on cancellation of weather alarm, disabling and forced operation and operation
will be enabled.
4.1.3.1.2 Rain alarm
The device can receive a rain alarm telegram to protect the blind/shutter in rainy conditions.
If a rain alarm occurs, the blind/shutter will be moved to the position defined in the parameter Position
for rain alarm and operation will be disabled.
The order of priority of alarms can be defined in the Order of priority of weather alarm, disabling and
forced operation.
In case of a weather alarm, the blind/shutter cannot be operated via other group objects, manual op-
eration or the i-bus® Tool until the weather alarm is canceled. Travel range limits are not taken into ac-
count with weather alarms.
The sensors can be cyclically monitored by the device, and they can cyclically send the alarm status to
the device. If the device does not receive the alarm status within a defined monitoring time, the device
assumes that the sensor is faulty or communication is interrupted. The blind/shutter is moved to the
defined alarm position and disabled for all outputs upon which the alarm acts.
The monitoring cycle in the device should be at least four times as large as the cyclic transmission time
of the sensor. As a result, the parameterized alarm reactions will not be triggered immediately if a sig-
nal is missing (e.g. due to high bus load).
When a wind, rain or frost alarm is canceled, the blind/shutter will be moved to the position defined in
the parameter Position on cancellation of weather alarm, disabling and forced operation and operation
will be enabled.
4.1.3.1.3 Frost alarm
The device can receive a frost alarm telegram to protect the blind/shutter in freezing conditions.
Note
Note
Note
Note
Product manual | SAH/S x.x.7.1 | 2CDC505173D0211 Rev. A 78