
ABB i-bus
®
KNX
Planning and application
252 2CDC508134D0202 | FCA/S 1.x.x.1
4.4
Reaction on bus voltage failure, recovery, download and ETS reset
The way in which the device reacts on bus voltage failure or recovery, download and ETS reset are
described below.
Important
For system reasons, the device switches the outputs OFF for about 1 second after bus voltage
recovery, download or ETS reset. The reaction is the same after overload, short-circuit and supply
voltage recovery.
Switch off is not taken into account in the status objects.
After switch off, the outputs assume the current state.
4.4.1
Bus voltage recovery
Fan or switch actuator reaction to bus voltage failure can be set.
4.4.2
Bus voltage recovery
A fan speed value can be predefined for bus voltage recovery. In
Switch actuator
mode, the
communication object
Switch
can be written with
0
,
1
or
not
written.
Status communication objects are sent provided that the option
Only after changing
or
After a change
or request
has been set.
The sending delay is only active at bus voltage recovery!
Содержание i-bus KNX
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