Chapter 12 Description of Parameter SettingsME300
12.1-03-18
When Pr.03-28 ≠ 1, the ACI setting is 0–20 mA or 4–20 mA and the unit is current (mA).
When you set the analog input ACI to the Frequency command, 100% corresponds to Fmax
(Pr.01-00 Maximum Operation Frequency).
The output % becomes 0% when the ACI input value is lower than lowest point setting.
For example:
If Pr.03-57 = 2 mA; Pr.03-58 = 10%, then the output becomes 0% when the AVI input is ≤ 2 mA.
If the ACI input swings between 2 mA and 2.1 mA, the drive’s output frequency oscillates
between 0% and 10%.
AVI Voltage Lowest Point
Default: 0.00
Settings 0.00–10.00 V
AVI Voltage Proportional Lowest Point
Default: 0.00
Settings -100.00–100.00%
AVI Voltage Mid-point
Default: 5.00
Settings 0.00–10.00 V
AVI Voltage Proportional Mid-point
Default: 50.00
Settings -100.00–100.00%
AVI Voltage Highest Point
Default: 10.00
Settings 0.00–10.00 V
AVI Voltage Proportional Highest Point
Default: 100.00
Settings -100.00–100.00%
When you set the positive voltage AVI to the Frequency command, 100% corresponds to Fmax
(Pr.01-00 Maximum Operation Frequency) and the motor runs in the forward direction.
The requirement for these three parameters (Pr.03-63, Pr.03-65 and Pr.03-67) is Pr.03-63 <
Pr.03-65 < Pr.03-67. The values for three proportional points (Pr.03-64, Pr.03-66 and Pr.03-68)
have no limits. There is a linear calculation between two points.
The output % becomes 0% when the positive voltage AVI input value is lower than lowest point
setting.
For example:
If Pr.03-63 = 1 V; Pr.03-64 = 10%, then the output becomes 0% when the AVI input is ≤ 1 V.
If the AVI input swings between 1 V and 1.1 V, the drive’s output frequency oscillates between
0% and 10%.
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