Vacon CX Manual

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Vacon Page 25
Pump control with autochange
0
Par. 2. 19 = -30%
Par. 2. 20 = 140%
100
UD012K34
100 140
-30
0
0
4
100
0
Par. 2. 19 = 30%
Par. 2. 20 = 80%
1008030
10.0 V
20.0 mA
20.0 mA
76.5
(15.3 mA)
17.7
(3.5 mA)
Scaled
input signal [%]
Analogue
input [%]
Scaled
input signal [%]
Analogue
input [%]
0
0
4
10.0 V
8.03.0
20.0 mA
16.06.0
16.88.8 20.0 mA
2. 23 Error value inversion
This parameter allows you to invert the error value of the PI-controller (and thus the
operation of the PI-controller).
Figure 6-4 Examples about the scaling of actual value signal.
2. 24 PI-controller minimum limit
2. 25 PI-controller maximum limit
These parameters set the minimum and maximum values of the PI-controller output.
Parameter value limits: par 1.1 <par. 2. 24 <par. 2. 25.
2. 26 Direct frequency reference, Place B
0 Analogue voltage reference from terminals 2—3, e.g. a potentiometer
1 Analogue current reference from terminals 4—5, e.g. a transducer.
2 Panel reference is the reference set from the Reference Page (REF),
Reference r1 is the Place B reference, see chapter 6.
3 Reference value is changed with digital input signals DIA2 and DIA3.
- switch in DIA2 closed = frequency reference increases
- switch in DIA3 closed = frequency reference decreases
Speed of the reference change can be set with the parameter 2. 3.
4 Same as setting 3 but the reference value is set to the minimum frequency
(par. 1. 1) each time the frequency converter is stopped. When value of the
parameter 1. 5 is set to 3 or 4, value of the parameter 2. 1 is automatically set
to 4 and value of the parameter 2. 2 is automatically set to 10.
2. 27 Place B reference scaling, minimum value/maximum value
2. 28 Setting limits: 0 < par. 2. 27 < par. 2. 28 < par. 1. 2.
If par. 2. 28 = 0 scaling is set off. See figures 6-5 and 6-6.
(In the figures voltage input U
in
with signal range 0—10 V selected for source B reference)
See Figure 6-5 Reference scaling and Figure 6-6 Reference scaling, par. 2.15 = 0.
(next page).

Vacon CX Specifications

General

Brand	Vacon
Model	CX
Category	Media Converter
Language	English