
ABB i-bus
®
KNX
Commissioning
FCA/S 1.x.x.1 | 2CDC508134D0202 125
Fan operating mode
(note technical data of 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.
How does changeover switching work?
With changeover switch control, only the corresponding output of 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.
How does step switching work?
With step switch control, it is impossible for the fan to switch on erratically or suddenly. The
individual 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.
Changeover:
Selection of option
Changeover
:
Dependent parameter:
Delay between speed
switchover in ms [50...5,000]
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.
Fan speed on bus voltage failure
Options:
Unchanged
OFF
Unchanged
: The fan's speeds remain unchanged.
OFF
: The fan is switched off.
Содержание i-bus KNX
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