Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual page 93

®
VLT AQUA Drive
Operating Instructions
6-51 Terminal 42 Output Min Scale
Range:
0.00 %* [0.00 - 200.00 %]
6-52 Terminal 42 Output Max Scale
Range:
100.00 %* [0.00 - 200.00 %]
EXAMPLE 1:
Variable value= OUTPUT FREQUENCY, range = 0-100 Hz
Range needed for output = 0-50 Hz
Output signal 0 or 4 mA is needed at 0 Hz (0% of range) - set par. 6-51
Output signal 20 mA is needed at 50 Hz (50% of range) - set par. 6-52
EXAMPLE 2:
Variable= FEEDBACK, range= -200% to +200%
Range needed for output= 0-100%
Output signal 0 or 4 mA is needed at 0% (50% of range) - set par. 6-51
Output signal 20 mA is needed at 100% (75% of range) - set par. 6-52
Function:
Scale for the minimum output (0 or 4 mA) of the analogue signal at terminal 42.
Set the value to be the percentage of the full range of the variable selected in par. 6-50
42 Output
.
Function:
Scale for the maximum output (20 mA) of the analog signal at terminal 42.
Set the value to be the percentage of the full range of the variable selected in par. 6-50
42 Output
.
It is possible to get a value lower than 20 mA at full scale by programming values >100% by using
a formula as follows:
mA desired maximum current
20 /
20 mA
i . e . 10 mA : × 100 % = 200 %
mA
10
Terminal 42 Output Min Scale
Terminal 42 Output Max Scale
Terminal 42 Output Min Scale
Terminal 42 Output Max Scale
®
MG.20.M5.02 - VLT is a registered Danfoss trademark
8. How to programme the frequency converter
× 100 %
to 0%
to 50%
to 50%
to 75%
Terminal
Terminal
8
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