244 YASKAWA ELECTRIC SIEP C710636 02B YASKAWA U1000 Technical Manual
5.5 E: Motor Parameters
5.5 E: Motor Parameters
E parameters cover V/f pattern and motor data settings.
◆ E1: V/f Pattern for Motor 1
■ V/f Pattern Settings (E1-03)
The drive uses the V/f pattern that has been set to adjust the output voltage relative to the frequency reference. There are
15 different preset V/f patterns (setting 0 to E) to select from, each with varying voltage profiles, saturation levels
(frequency at which maximum voltage is reached), and maximum frequencies. Additionally, one custom V/f pattern is
available (setting F). The custom V/f pattern requires the user to create the pattern using parameters E1-04 through
E1-10.
■
E1-03: V/f Pattern Selection
The user can select the V/f pattern for the drive and motor from 15 predefined patterns, or create a custom V/f pattern.
Setting a Predefined V/f Pattern (Setting 0 to E)
Choose the V/f pattern that best meets the application demands from Table 5.21. These settings are available only in V/f
Control modes. Set the correct value to E1-03. 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 5.21 Predefined V/f Patterns
No. Parameter Name Setting Range Default
E1-03 V/f Pattern Selection 0 to F
<1>
<1> Parameter setting value is not reset to the default value during drive initialization (A1-03).
F
<2>
<2> Settings 0 through E are not available when using any of the vector control modes.
Setting Specification Characteristic Application
0
<1> Setting F enables a custom V/f pattern by changing parameters E1-04 to E1-13. When the drive is shipped, the default values for parameters
E1-04 to E1-13 are the same as those of setting 1.
50 Hz
Constant torque
For general purpose applications. Torque remains constant regardless of
changes to speed.
160 Hz
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 where the required torque
changes as a function of the speed.
5 50 Hz, Heavy Duty 1
6 60 Hz, Heavy Duty 1
7 60 Hz, Heavy Duty 2
8 60 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
9 60 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 Output voltage is constant when operating at greater than 60 Hz.
D 120 Hz (with 60 Hz base)
E 180 Hz (with 60 Hz base)
F
<1>
60 Hz Constant torque
For general purpose applications. Torque remains constant regardless of
changes to speed.
SIEP_C710636_02B_1_0.book 244 ページ ２０１５年１１月２５日 水曜日 午後４時５６分
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