YASKAWA GA700 - E: Motor Parameters; E1: V;F Pattern for Motor 1

11.6 E: Motor Parameters
798 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
11.6 E: Motor Parameters
E parameters cover drive input voltage, V/f pattern, and motor parameters.
◆ E1: V/f Pattern for Motor 1
E1 parameters are used to set the drive input voltage and motor V/f characteristics. To switch drive operation
from one motor to another motor, set the V/f characteristics for motor 1.
■ V/f Pattern Settings
The drive uses a V/f pattern to adjust the output voltage relative to the frequency reference.
This product has been preconfigured with 15 voltage/frequency (V/f) patterns. Use E1-03 [V/f Pattern Selection]
to select the V/f pattern that is appropriate for the application.
Additionally, one custom V/f pattern is available. Set E1-03 = F [Custom] and then manually set parameters E1-
04 to E1-10.
Table 11.47 Predefined V/f Patterns
Set
ting
Specification Characteristic Application
0
Const Trq, 50Hz base, 50Hz
max
Constant torque For general purpose applications. This pattern is used when the load
torque is constant without any rotation speed such as that used for linear
conveyor systems.
1
Const Trq, 60Hz base, 60Hz
max
2
Const Trq, 50Hz base, 60Hz
max
3
Const Trq, 60Hz base, 72Hz
max
4 VT, 50Hz, 65% Vmid reduction Variable torque This pattern is used for torque loads proportional to 2 or 3 times the
rotation speed, such as is the case with fans and pumps.
5 VT, 50Hz, 50% Vmid reduction
6 VT, 60Hz, 65% Vmid reduction
7 VT, 60Hz, 50% Vmid reduction
8
High Trq, 50Hz, 25% Vmin
boost
High starting
torque
This pattern is used when strong torque is required during startup.
9
High Trq, 50Hz, 65% Vmin
boost
A
High Trq, 60Hz, 25% Vmin
boost
B
High Trq, 60Hz, 65% Vmin
boost
C
High Freq, 60Hz base, 90Hz
max
Constant output This pattern is used to rotate motors at greater than 60 Hz. Output voltage
is constant when operating at greater than 60 Hz.
D
High Freq, 60Hz base, 120Hz
max
E
High Freq, 60Hz base, 180Hz
max
F
Custom Constant torque Enables a custom V/f pattern by changing E1-04 to E1-13 [V/f Pattern
for Motor 1]. The default settings for E1-04 to E1-13 are equivalent to
Setting Value 1 [Const Trq, 60Hz base, 60Hz max].