Chapter 12 Descriptions of Parameter SettingsC2000 Plus
12.1-03-24
When you set the analog input AVI to frequency command, 100% corresponds to Fmax (Pr.01-00
Maximum Operation Frequency).
The requirement for these three parameters (Pr.03-51, Pr.03-53 and Pr.03-55) is Pr.03-51 <
Pr.03-53 < Pr.03-55. The values for three proportional points (Pr.03-52, Pr.03-54 and Pr.03-56)
have no limits. Values between two points are calculated by a linear equation. The ACI and AUI
are same as AVI.
The output percentage 0% when the AVI input value is lower than the lowest point setting.
Example: Pr.03-51 = 1 V; Pr.03-52 = 10%. The output is 0 % when AVI input is lower than 1V. If
the AVI input varies between 1V and 1.1V, the drive’s output frequency is between 0% and 10%.
When Pr.03-28 = 2 (AVI terminal input selection = 4–20 mA) and Pr.03-29 = 0 (ACI terminal
input selection = 4–20 mA), the ACI input range for Pr.03-51 (AVI lowest point) and Pr.03-57
(ACI lowest point) is 0–20 mA. However, the drive frequency output remains 4 mA when the
ACI input is lower than 4 mA.
The drive remains at the lowest percentage when the input is lower than the lowest point, same
as the action when input higher than the highest point.
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