Specifications
Chapter 5 Parameters|VFD-B Series
Revision July 2008, BE16, SW V4.08 & V5.00 5-101
Group 11: Fan and Pump Control Parameters
11 - 00 V/f Curve Selection
Factory Setting: 00
Settings 00 V/f curve determined by Pr.01-00 to Pr.01-06.
01 1.5 power curve
02 1.7 power curve
03 Square curve
04 Cube curve
Confirm the load curve and select the proper V/f curve before use.
The available V/f curves are shown below:
02040
60
80
100
10
20
30
40
50
60
70
80
90
100
01-02
01-01
Voltage100%
Cube power curve
Square power curve
1.7 power curve
1.5 power curve
Freq. %
V/F Curve Diagram
11 - 01 Start-up Frequency of the Auxiliary Motor Unit: 0.01
Settings 0.00 to 400.00 Hz Factory Setting: 0.00
This parameter serves as a reference for the startup value of the auxiliary motor. If the setting
is 0, the auxiliary motor cannot be activated.
11 - 02 Stop Frequency of the Auxiliary Motor Unit: 0.01
Settings 0.00 to 400.00 Hz Factory Setting: 0.00
When the output frequency reaches this parameter value, the auxiliary motor will be stopped.
There must be a minimum of 5 Hz difference between the start frequency and stop frequency
of auxiliary motor. (Pr.11-01-Pr.11-02) > 5 Hz.
11 - 03 Time Delay before Starting the Auxiliary Motor Unit: 0.1
Settings 0.0 to 3600.0 sec Factory Setting: 0.0