ABB i-bus
®
KNX
Parameters
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 269
7.10.1.2
Fan type of operation (important: observe the technical data for the fan)
Options:
Changeover
Step switch
Control of the fan is set with this parameter. The mode of fan control should be taken from the
technical data of the fan.
With changeover switch control, only the corresponding output for the assigned fan speed is
switched on.
The delay time between the speed switchover and a minimum dwell time can be parameterized.
The latter is only active in automatic operation.
With step switch control, it is impossible for the fan to switch on erratically or suddenly. The individ-
ual fan speeds are activated consecutively (outputs switched on) until the required fan speed is
reached.
The parameterized delay time between two fan speeds has the effect that the current fan speed
must be switched on for at least this time before the next speed is switched on. The parameterized
minimum dwell time has the same effect as a changeover switch, i.e. it is only active in automatic
mode and is added to the switchover delay.
7.10.1.2.1
—
Dependent Parameter
Delay between fan speed switchover
Options:
50…500…5,000
A switchover delay can be programmed with this parameter. This time is a fan-specific factor and it
is always taken into account.