Vacon Plc
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Page 26
Vacon
Pump and fan control with autochange
2. 29
PI-controller reference signal 2 (place A)
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 r2 is the PI-controller 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.
5
Analogue voltage signal from the terminals 202—203 of the I/O-expander
6
Analogue signal from the terminals 204—205 of the I/O-expander
- current signal, Vacon CX 100 OPT
- voltage signal, Vacon CX 102 OPT
7
Panel reference r3, can be set on the Reference Page (REF) of the panel.
2. 30
Ain1
signal inversion (I/O-expander)
Parameter 2
.
30 = 0, no inversion
2. 31
Ain1
signal filter time
Filters out disturbances from the incoming analogue Ain1 signal. Long filtering time
makes regulation response slower.
2. 32
Ain2 input (I/O-expander) signal range
0 = 0—20 mA
1 = 4—20 mA
2 = 0-10 V (must be used with 102 OPT)
2. 33
Ain2
signal inversion (I/O-expander)
Parameter 2
.
33 = 0, no inversion
2. 34
Ain2
signal filter time
Filters out disturbances from the incoming analogue Ain2 signal. Long filtering time
makes regulation response slower.
10
0
Par. 2
.
28
Par. 2
.
27
UD012K35
10
0
Output
frequency
Analogue
input [V]
Max freq. par 1
.
2
Min freq. par 1
.
1
Output
frequency
Analogue
input [V]
Max freq. par 1
.
2
Min freq. par 1
.
1