Vacon CX, Руководство пользователя

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Page 22 Vacon
Pump and fan control with autochange
2. 2 DIA3 function
Selections are the same as in 2 . 1 except :
10: Motor pot. contact closed = Reference decreases until the contact is
DOWN
opened
2. 3 U
in
signal range
0 = Signal range 0—10 V
1 = Custom setting range from custom minimum (par. 2 . 4) to custom
maximum (par. 2 . 5)
2 = Signal range 2—10 V
2. 4 U
in
custom setting minimum/maximum
2. 5 With these parameters you can set U
in
for any input signal span of 0—10 V.
Minimum setting: Set the U
in
signal to its minimum level, select parameter 2 . 4,
press the Enter button
Maximum setting: Set the U
in
signal to its maximum level, select parameter 2 . 5,
press the Enter button
Note! The parameter values can only be set with this procedure (not with arrow up/arrow
down buttons)
2. 6 U
in
signal inversion
Parameter 2. 6 = 1, inversion of analogue U
in
signal.
2. 9 Analogue input I
in
custom setting
2. 10 minimum/maximum
With these parameters you can scale the input current signal (I
in
) signal range
between 0 and 20 mA. See par. 2 . 4 and 2 . 5.
2. 7 U
in
signal filter time
Filters out disturbances from the
incoming analogue U
in
signal.
Long filtering time makes regulation
response slower.
See figure 6-2.
Figure 6-2 U
in
signal filtering
2. 8 Analogue input I
in
signal range
0 = 0—20 mA
1 = 4—20 mA
2 = Custom signal span
%
100%
63%
Par. 2 . 7
t [s]
UD009K15
Filtered signal
Unfiltered signal