vacon • 156 Parameters
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7.2.10 Analog inputs
P3.5.2.1.2 AI1 F
ILTER TIME
When this parameter is given a value greater than 0 the function that filters out disturbances from
the incoming analogue signal is activated.
NOTE: Long filtering time makes the regulation response slower!
Figure 47. AI1 signal filtering
P3.5.2.1.3 AI1 SIGNAL RANGE
The signal range for the analogue signal can be selected as:
Type of the analogue input signal (current or voltage) is selected by the dip switches on the control
board (see Installation manual).
In the following examples, the analogue input signal is used as a frequency reference. The figures
show how the scaling of the analogue input signal is changed depending on the setting of this pa-
rameter.
Selection
number
Selection name Description
0 0…10 V/0…20 mA
Analogue input signal range 0…10 V or 0…20 mA (depending on dip
switch settings on the control board). Input signal used 0…100%.
[%]
100%
63%
ID378
t [s]
9095.emf
Filtered signal
Unfiltered signal
Analogue input
signal
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