
6.1
Common Settings
- 3
J
Control Method: A1-02
D
Select one of the four control methods.
D
This constant is not initialized by the initialize operation.
User
Change
during
Setting
Factory
Valid Access Levels
User
Constant
Number
Name
during
Opera-
tion
Setting
Range
Unit
Factory
Setting
Open Loop
Vector
Flux Vector
A1-02
Control method selec-
tion
2 3
--
2
Open
Loop
Vector
Q
Q
D
Control Method Settings
Setting
Control Method
Function
2
Open loop vector control
Vector control using the Inverter’s internal speed information
3
Flux vector control
Vector control using a PG Speed Control Card
D
The characteristics of each control method are shown in Table 6.1.
Table
6.1
Control Method Characteristics
Characteristic
Open Loop Vector
Flux Vector
Basic control method
Current vector control without PG
Current vector control with PG
Speed detector
Not required
Required
(pulse generator)
Optional speed
detectors
Not required
PG-B2 or PG-X2
Speed control range
1:100
1:1000
Starting torque
150%/1 Hz
150%/0 r/min
Speed control
accuracy
0.2%
0.02%
Torque limit
Possible
Possible
Example applications
S
Variable speed drive applications.
S
Simple servo drives.
S
Precision speed control.
6