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ABB i-bus KNX
© 2010 ABB STOTZ-KONTAKT GmbH
Commissioning
Starting characteristic of fan
Options:
no
yes
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 start
up phase of the fan is achieved.
Note
A step switch normally means however that the previous fan speeds are
usually switched on consecutively.
With the changeover switch the fan speed is directly switched on.
The delay between the switchover of two fan speeds (contact change)
is considered.
The dwell times in a fan speed which are considered in automatic mode,
are inactive and will only be considered after the start up phase.
The start-up behaviour is a technical characteristic of the fan. For this reason
this behaviour has a higher priority than an active limitation or forced
operation.
With the option yes in the parameter Starting characteristic of fan,
the two additional parameters appear:
Switch on over fan speed
Options:
1/2/3
Here you set which fan speed the fan uses to start from the OFF
state.
Minimum dwell period in switch on
in s [1...65,535]
Options:
1...5...65,535
This parameter defines the minimum dwell time in one of the switch
on speeds.
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