Vacon CX - Page 31

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Vacon Page 31
Pump control with autochange
3. 19 Frequency converter temperature limit supervision function
0 = No supervision
1 = Low limit supervision
2 = High limit supervision
If the temperature of the frequency converter goes under/over the set limit (3. 20)
this function generates a warning message via the digital output DO1 or via a relay
output RO1 or RO2 depending on the settings of the parameters 3. 6—3. 8.
3. 20 Frequency converter temperature limit value
The temperature value to be supervised by the parameter 3. 19.
3. 26 Analogue output offset
3. 27 I/O-expander analogue output offset
With these parameters can be set the offsets of the basic control board and I/O-
expander analogue outputs. See figure 6-12.
3. 28 Analogue input supervision, input signal selection
0 Analogue voltage signal from terminals 2—3
1 Analogue current signal from terminals 4—5
2 Analogue voltage signal from terminals 202—203 of the I/O-expander
3 Analogue signal from the terminals 204—205 of the I/O-expander
- current signal, Vacon CX 100 OPT
- voltage signal, Vacon CX 102 OPT
3. 29 Analoque input supervision function
0 = No supervision
1 = Low limit supervision
2 = High limit supervision
If the value of the selected analogue input (par. 3.28) goes under/over the set limit
(3. 30) this function generates a warning message via the digital output DO1 or via
a relay output RO1 or RO2 depending on the settings of the parameters 3. 6—3. 8.
3. 30 Analoque input supervision limit value
The value of the analogue input to be supervised by the parameter 3. 29.
Figure 6-12 Analogue output offset
1.0
0
20 mA
0.5
0 mA
Param. 3. 26
= 25% (+5 mA)
Param. 3. 5
= 100%
Param. 3. 26
= -30%(-6mA)
ao-offse.fh3
Analogue
output
current
Maximum value of
selected signal