ABB i-bus
®
KNX
Commissioning
FCA/S 1.x.x.1 | 2CDC508134D0202 145
3.2.3.13 Parameter window Startup/Run-on
This parameter window is visible if the option Yes has been selected with the parameter Set startup/run-on
in Parameter window E, F, G: Fan (Multi-level), p. 124,.
Start-up behavior
This parameter enables the fan to start from the OFF state with a defined fan speed. This fan speed is
immediately applied.
In order to guarantee a safe start of the fan motor, it can be useful to start the fan motor first with a higher
fan speed. Thus a higher torque for the startup phase of the fan is achieved.
However, with a step switch, the previous fan speeds are switched on consecutively. With the
changeover switch the fan speed is switched on right away.
The delay between the switchover of two fan speeds (contact change) is taken into account.
The dwell times, which are taken into account in automatic operation, are inactive and will only be taken
into account after the start-up phase.
The start-up behavior is a technical characteristic of the fan. For this reason, this behavior has a higher
priority than an active limitation or forced operation.
Selection of option Yes:
Dependent parameters:
Switch on over fan speed
Here you set which speed the fan uses to start from the OFF state.
Minimum dwell period in switch on
fan stage in s [1...65,535]
This parameter defines the minimum dwell time for one of the switch on speeds.
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