Delta VFD-B Series

Chapter 5 Parameters|VFD-B-P Series
5-102 Revision April 2009, SW V1.00
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 0.00, 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