Danfoss VLT AutomationDrive FC 360 - 8.3.2.3 Scaling of Preset References and Bus References

Design Guide | VLT® AutomationDrive FC 360
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P 3-03 Reference Range = [1] -Max-Max
Resulting reference
P 3-03
-P 3-03
Sum of all
references
Figure 40: Sum of All References When Reference Range is Set to 1
The value of parameter 3-02 Minimum Reference cannot be set to less than 0, unless parameter 1-00 Configuration Mode is set to [3]
Process. In that case, the following relations between the resulting reference (after clamping) and the sum of all references are as shown
in Figure 41.
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P 3-00 Reference Range = [0] Min to Max
Resulting reference
P 3-03
P 3-02
Sum of all
references
Figure 41: Sum of All References When Minimum Range is Set to a Minus Value
8.3.2.3 Scaling of Preset References and Bus References
Preset references are scaled according to the following rules:
l When parameter 3-00 Reference Range is set to [0] Min–Max, 0% reference equals 0 [unit] where unit can be any unit, for example
RPM, m/s, and bar. 100% reference equals the maximum (absolute value of parameter 3-03 Maximum Reference, absolute value of
parameter 3-02 Minimum Reference).
l When parameter 3-00 Reference Range is set to [1] -Max–+Max, 0% reference equals 0 [unit], and 100% reference equals maximum
reference.
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