ABB i-bus KNX Product Manual page 38


ABB i-bus KNX
Commissioning
36 2CDC 508 101 D0201 | VAA/S x.230.2.1
Automatic valve purge
Options: no
yes

yes: The following parameters appear:
Purge cycle in
weeks [1...12]
Options: 1...6...12
The internal automatic purge timer starts directly after a download. The time is reset each
time it is downloaded.
The time is reset as soon as purging is completed. This can occur either through automatic
purging or via the communication object Trigger valve purge.
Note
Purging can also be triggered via the bus using the communication object Trigger valve
purge.
After bus voltage recovery and download, the automatic purging cycle is restarted. The
time before bus voltage failure is not considered.
The purging cycle will automatically restart if Purge cycle in weeks [1...12] is changed
after the download.
Reset purge cycle
from control value in % [1...99]
Options: 1...99
This parameter determines when the purge cycle is to be reset after the set control value.
Note
The purging cycle time is restarted if automatic valve purge has been activated at start-up
of the device.
The purging cycle time will be restarted at the end of the actual purging period. The
parameterized period of valve purging is included here.
The entry of the opening time for the valve drive must be considered when entering the
period for valve purge.
The purging cycle with an active automatic valve purge is reset and restarted if:

A manual valve purge is triggered via the communication object Trigger valve purge.

A parameterized value is received on the communication object Control value (Reset
purge cycle from control value in % [1...99]).
Enable characteristic curve
Options: no
yes

yes: Parameter window Characteristic Curve appears.