Reaction On Bus Voltage Failure; Behaviour With Bus Voltage Failure, Recovery And Download - ABB i-bus KNX FCA/S 1.1M Product Manual

ABB i-bus KNX
4.4.4 Reaction on bus
voltage failure
4.4.5 Behaviour with bus
voltage failure,
recovery and download
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Planning and application
After the Contact position on bus voltage failure has been set,
the Fan Coil Actuator remains functional until the bus voltage recovers.
Only the energy for a non-delayed switching action is available when
the bus voltage fails for each output. Reversing times, dwell times and
start-up behaviour cannot be considered. For this reason, it is only possible
for the fan at bus voltage recovery to retain the fan speed (unchanged)
or to switch off.
The special behaviour is described in the following table.
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