ABB i-bus
®
KNX
Parameters
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 276
Fig. 50: Start-up behavior of a three-speed fan
2CDC072053F0217
* The parameter
Minimum dwell period in fan speed in s [0…65,535]
in the parameter window
Automatic operation
is only active and programmable, if the option
Yes
has been selected in the
Enable automatic operation
parameter. In the parameter window
Fan
, you can find the parameter
Enable automatic operation
.
Note
Forced operation remains valid and is taken into account.
The delay time with speed switchover remains active to protect the fan.
If an Off command is received during the start-up time, the fan switches off directly, independent
of whether it has already reached the target speed or not.
7.10.1.5
Enable run-on behavior for fan speed reduction
Options:
No
Yes
This parameter activates a run-on for the fan. If the fan changes to a lower speed, it remains in the
previous speed for the parameterized run-on time and only then reduces the speed by one level.
If the fan goes through several speed changes, run-on times are executed successively, adding on
those times.
A run-on time of 0 seconds means that run-on is deactivated.
Run-on is executed regardless of where the speed change originates (automatic operation, direct
operation, manual procedure, fan switch off).
•
Yes
: The dependent parameters
Run-on speed 1
,
Run-on speed 2
and
Run-on speed 3
are dis-
played.
