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®
ABB i-bus
KNX
Planning and application
4.1.1.1
Fan with changeover switch
Fans are usually controlled with a changeover switch.
A three-speed fan has the following control table:
OFF
Fan speed 1
Fan speed 2
Fan speed 3
4.1.1.2
Fan with step switch
In some cases, the fan is controlled via a step switch. A three-speed fan has the following control table:
OFF
Fan speed 1
Fan speed 2
Fan speed 3
The step switch cannot be switched on rapidly. If, for example, fan speed 3 is to be switched on from the
OFF state, fan speeds 1 and 2 must be controlled with the associated dwell times first.
Terminal 2/8
Terminal 3/9
0
0
1
0
0
1
0
0
Terminal 2/8
Terminal 3/9
0
0
1
0
1
1
1
1
Terminal 4/10
0
0
0
1
Terminal 4/10
0
0
0
1
FCL/S x.6.1.1 | 2CDC508116D0203 83
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