11 Drive Control, Duty Modes, and Programming
YASKAWA
TOEPC71061782C GA800 Drive Installation & Primary Operation
53
Control Methods
A1-02
Main Applications
V/f
0
•
Use for main variable-speed applications, especially when you operate more than one motor with one drive.
•
Use also when you do not have sufficient data to set the motor parameters.
OLV
2
(Default)
•
Main Applications of Variable Speed Control
•
Use for applications in which high-precision and high performance are necessary and you do not use speed feedback.
EZOLV
8
•
Main Applications of Variable Speed Control
•
Use for applications in which high-precision and high performance are not necessary and you do not use speed feedback.
◆
Drive Duty Modes
The drive has two duty modes from which to select for the application: Heavy Duty (HD) and Normal Duty (ND).
Refer to
for information about the differences between HD and ND ratings.
Table 11.1 Drive Duty Modes
Duty Rating
C6-01
Setting
Application
Default Carrier Frequency
Overload Tolerance (
oL2 [Drive
Overload]
)
Heavy Duty Rating
(HD)
0
•
Extruder
•
Conveyor
•
Constant torque or high overload capacity
2 kHz
150% of the rated output current for
60 seconds The permitted frequency
of overload is one time each 10
minutes.
Normal Duty Rating
(ND)
1
•
Fan
•
Pump
•
Blower
•
Variable speed control
2 kHz Swing-PWM
110% of the rated output current for
60 seconds The permitted frequency
of overload is one time each 10
minutes.
◆
Auto-Tuning
WARNING
Injury to Personnel. Rotational Auto-Tuning rotates the motor at 50% or more of the motor rated frequency. Make
sure that there are no issues related to safety in the area around the drive and motor. Increased motor frequency can cause serious
injury or death.
WARNING
Sudden Movement Hazard. Before you do Rotational Auto-Tuning, disconnect the load from the motor. The load
can move suddenly and cause serious injury or death.
Auto-Tuning automatically sets parameters on the drive connected to the motor. You must input some parameters
individually during Auto-Tuning.
1. Select [Auto-Tuning] from the main menu to select the Auto-Tuning Mode.
2. Use the information in
and
to set
T1-01 [Auto-Tuning Mode Selection]
and
T4-01 [EZ
Tuning Mode Selection]
.
3. Push
to start Auto-Tuning.
Refer to the Technical Manual for more information about Auto-Tuning.
Table 11.2 Auto-Tuning Mode Selection
Type
T1-01
Application Conditions and Benefits
A1-02
[Control Method
Selection]
0
[V/f]
2
[OLV]
Rotational Auto-Tuning
0
Recommended tuning mode for the most accurate results. Select this tuning mode when:
•
You can decouple the motor from the load.
•
You cannot decouple the motor from the load, but the motor load is less than 30%.
-
Yes
Stationary Auto-Tuning
1
1
Automatically calculates motor parameters for vector control. Select this tuning mode when:
•
You cannot decouple the motor from the load.
•
The motor test report data is not available.
-
Yes
Line-to-Line Resistance
2
Select this tuning mode when:
•
The drive and motor capacities are different.
•
The drive is in V/f Control.
•
You have replaced the drive and motor.
Yes
Yes
