Setting a Predefined V/f Pattern
Setting the V/f Pattern
Choose the V/f pattern that meets the application demands from the table below. Set the correct value to E1-03. The V/f
parameters E1-04 to E1-13 can only be monitored, not changed.
Note: 1. Setting an improper V/f pattern may result in low motor torque or increased current due to overexcitation.
2. Parameter E1-03 is not reset when the drive is initialized.
Table 5.15 Predefined V/f Patterns
Setting Specification Characteristic Application
0 50 Hz
Constant torque
For general purpose applications. Torque remains
constant regardless of changes to speed.
1
60 Hz
(default setting)
2 60 Hz (with 50 Hz base)
3 72 Hz (with 60 Hz base)
4 50 Hz, Heavy Duty 2
Derated torque
For fans, pumps, and other applications that require
torque derating relative to the load.
5 50 Hz, Heavy Duty 1
6 60 Hz, Heavy Duty 1
7 60 Hz, Heavy Duty 2
8 50 Hz, mid starting torque
High starting torque
Select high starting torque when:
• Wiring between the drive and motor exceeds
150 m
• A large amount of starting torque is required
• An AC reactor is installed
9 50 Hz, high starting torque
A 60 Hz, mid starting torque
B 60 Hz, high starting torque
C 90 Hz (with 60 Hz base)
Constant output
When operating at greater than 60 Hz the output
voltage will be constant.
D 120 Hz (with 60 Hz base)
E 180 Hz (with 60 Hz base)
The following tables show details on predefined V/f patterns.
The following graphs are for 200 V class drives; double the values for 400 V class drives.
Predefined V/f Patterns for 0.1 to 3.7 kW Drives
Table 5.16
Constant Torque Characteristics, Settings 0 to 3
Setting = 0 50 Hz Setting = 1
60 Hz
(default)
Setting = 2 60 Hz Setting = 3 72 Hz
0
12
200
1.3 2.5 50
16
Voltage (V)
Frequency (Hz)
0
12
16
200
1.5 3 60
Voltage (V)
Frequency (Hz)
0
12
16
200
1.5 3 6050
Voltage (V)
Frequency (Hz)
0
12
16
200
1.5 3 7260
Voltage (V)
Frequency (Hz)
Table 5.17 Derated Torque Characteristics, Settings 4 to 7
Setting = 4 50 Hz Setting = 5 50 Hz Setting = 6 60 Hz Setting = 7 60 Hz
0
8
200
1.3 25 50
35
Voltage (V)
Frequency (Hz)
0
9
200
1.3 25 50
50
Voltage (V)
Frequency (Hz)
0
8
200
1.5 30 60
35
Voltage (V)
Frequency (Hz)
0
9
200
1.5 30 60
50
Voltage (V)
Frequency (Hz)
Table 5.18 High Starting Torque, Settings 8 to B
Setting = 8 50 Hz Setting = 9 50 Hz Setting = A 60 Hz Setting = B 60 Hz
0
12
200
1.3 2.5 50
19
Voltage (V)
Frequency (Hz)
0
13
200
1.3 2.5 50
24
Voltage (V)
Frequency (Hz)
0
12
200
1.5 3 60
19
Voltage (V)
Frequency (Hz)
0
15
200
1.5 3 60
24
Voltage (V)
Frequency (Hz)
5.5 E: Motor Parameters
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
163
5
Parameter Details
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