Delta VFD550C43A-00 - Page 571

Chapter 12 Descriptions of Parameter SettingsC2000 Plus
12.1-03-26
 The requirement for these three parameters (Pr.03-57, Pr.03-59 and Pr.03-61) is Pr.03-57 <
Pr.03-59 < Pr.03-61. The values for three proportional points (Pr.03-58, Pr.03-60 and Pr.03-62)
have no limits. There is a linear calculation between two points.
 The output percentage becomes 0% when the ACI input value is lower than the lowest point
setting.
Example:
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%.

03-63
Positive AUI Voltage Lowest Point
Default: 0.00
Settings 0.00–10.00 V

03-64
Positive AUI Voltage Proportional Lowest Point
Default: 0.00
Settings -100.00–100.00%

03-65
Positive AUI Voltage Mid-Point
Default: 5.00
Settings 0.00–10.00 V

03-66
Positive AUI Voltage Proportional Mid-Point
Default: 50.00
Settings -100.00–100.00%

03-67
Positive AUI Voltage Highest Point
Default: 10.00
Settings 0.00–10.00 V

03-68
Positive AUI Voltage Proportional Highest Point
Default: 100.00
Settings -100.00–100.00%
 When you set the positive voltage AUI 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 percentage becomes 0% when the positive voltage AUI input value is lower than the
lowest point setting.
For example:
If Pr.03-63 = 1 V; Pr.03-64 = 10%, then the output becomes 0% when the AUI input is ≤ 1V. If the
AUI input swings between 1V and 1.1V, the drive’s output frequency oscillates between 0% and
10%.
 Use Pr.03-51~03-68 to set the open circuit corresponding function of analog input value and max.
operation frequency (Pr.01-00), as shown in the figure below: