ABB i-bus FCC/S 1 1 Series Product Manual page 278

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ABB i-bus KNX
Parameters
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7.10.1.6.1 Dependent Parameter
Limitation x
The following descriptions apply to the parameters Limitation 1, Limitation 2 and Limitation 3.
Options:
This parameter specifies which fan speed(s) is(are) set, or cannot be exceeded/dropped below, if
limitation is active. The limitations apply both in the manual mode and in the automatic mode.
• No limitation active: Everything is possible.
• Unchanged: The state is retained.
• OFF: Off.
• 1: Limited to speed 1.
• 1, OFF: Limited to speed 1 and off.
• 2: Limited to speed 2.
• 2, 1: Limited to speeds 2 and 1.
• 2, 1, OFF: Limited to speed 2, 1 and off.
• 3: Limited to speed 3.
• 3, 2: Limited to speed 3 and 2.
• 3, 2, 1: Limited to speed 3, 2 and 1.
The parameterized start-up behavior, which is a technical characteristic of the fan, has a higher
priority than a limitation, i.e. if a limitation is activated in fan speed 2 and start-up behavior is pa-
rameterized with fan speed 3, the following behavior will result: The fan is in the OFF state and
receives a control signal for fan speed 1. First the fan goes to speed 3 (start-up speed), then 2,
which is specified via the limitation. Due to the limitation, the actual required fan speed 1 will not
be reached.
Three limitations are available. These can be used, e.g., to prohibit speed 3 during the night to re-
duce the noise.
The sequence of the displayed parameters corresponds with their priorities, i.e. the parameter with
the highest priority has limitation 1 followed by limitation 2 and 3.
3, 2, 1, OFF
Unchanged
OFF
1
1, OFF
2
2, 1
2, 1, OFF
3
3, 2
3, 2, 1
Note
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 278