Vacon Plc
Phone: +358-201 2121
Fax:+358-201 212 205
Service: +358-40-8371 150
E-mail: [email protected]
Page 24
Vacon
Pump and fan control with autochange
2. 15
PI-controller reference signal (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
Fieldbus signal
2. 16
PI-controller actual value selection
0
Actual value 1
1
Sum of Actual value 1 and Actual value 2
2
Difference of Actual value 1 and Actual value 2
3
Multiplication of Actual value 1 and Actual value 2
4
Minor of signals Actual value 1 and Actual value 2 is active actual value
5
Major of signals Actual value 1 and Actual value 2 is active actual value
6
Mean value of Actual value 1 and Actual value 2 signals
7
Sum of square roots from Actual value 1 and Actual value 2
2. 17
Actual value 1
2. 18
Actual value 2
0
No signal
1
Analogue voltage reference from terminals 2—3
2
Analogue current reference from terminals 4—5
3
Analogue voltage signal from the terminals 202—203 of the I/O-expander
4
Analogue signal from the terminals 204—205 of the I/O-expander
- current signal, Vacon CX 100 OPT
- voltage signal, Vacon CX 102 OPT
5
Fieldbus signal
2. 19
Actual value 1 minimum scale
Sets the minimum scaling point for Actual value 1. See figure 6-4.
2. 20
Actual value 1 maximum scale
Sets the maximum scaling point for Actual value 1. See figure 6-4.
2. 21
Actual value 2 minimum scale
Sets the minimum scaling point for Actual value 2. See figure 6-4
2. 22
Actual value 2 maximum scale
Sets the maximum scaling point for Actual value 2. See figure 6-4