It is possible to get a value lower than 20 mA at full scale by programming values >100% by using a formula as
follows:
20
mA
/
desired maximum current
×100%
i
.
e
.10
mA
:
20
mA
10
mA
× 100 % = 200 %
(See example 3).
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 to 0%
Output signal 20 mA is needed at 50 Hz (50% of range) - set par. 6-52 to 50%
3. Parameter Description VLT
®
HVAC Drive Programming Guide
86
MG.11.C5.02 - VLT
®
is a registered Danfoss trademark
3
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