Parameters vacon • 130
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6
6.2.10 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 35. 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 con-
trol board (see Installation manual).
In the following examples, the analogue input signal is used as a frequency reference. The fig-
ures show how the scaling of the analogue input signal is changed depending on the setting of
this parameter.
Selection
number
Selection name Description
0 0…10 V/0…20 mA Analogue input signal range 0…10V or
0…20mA (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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