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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.
100
Par. 2. 28
Par. 2. 27
UD012K35
100
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