Yaskawa G5HHP Drive - Manual (Page 93)

4.2 Modes
4 - 25
Table 4.4 Control Method Characteristics
Characteristic V/f Control without PG V/f Control with PG Open Loop Vector Control Flux Vector Control
Basic Control
Method
Voltage/frequency control
(open loop)
Voltage/frequency control
with speed compensation
Current vector control
without PG
Current vector control with
PG
Speed Detector Not required Required (pulse generator) Not required Required (pulse generator)
Optional Speed
Detectors
Not required PG-A2 or PG-D2 Not required PG-B2 or PG-X2
Speed Control
Range
1:40 1:40 1:100 1:1000
Starting Torque 150%/3 Hz 150%/3 Hz 150%/1 Hz 150 %/0 r/min
Speed Control
Accuracy
±2 to 3% ±0.03% ±0.2% ±0.02%
Torque Limit Not possible Not possible Possible Possible
Torque Control Not possible Not possible Not possible Possible
Example Applica-
tions
S Multiple motor drives.
S Replacing existing motor
for which motor constants
are not known.
S When autotuning is not
possible.
S Simple speed feedback
control.
S When a pulse generator is
attached to the machine
axis.
S Variable speed drive ap-
plications.
S Simple servo drives.
S Precision speed control.
S Torque control.
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Initializing User Constants: A1-03
D
Use constant A1-03 to initialize the user constants.
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When initialized, the user constants will return to their factory-preset values. You should normally re-
cord the setting of any constants that are changed from the factory presets.
User
Change
during Setting Factory
Valid Access Levels
User
Constant
Number
Name
g
during
Opera-
tion
Setting
Range
Unit Factory
Setting V/f
Control
V/f with
PG
Open
Loop
Vector
Flux
Vector
A1-03 Initialize X
0, 1110 , 2220 ,
3330
-- 0 Q Q Q Q
Settings to Initialize User Constants
Setting Function
0 Returns to the Initialize Display without initializing any user constants.
1110 Initializes the user constants to the user settings.
2220 2-wire sequential initialization (Initializes the user constants to the factory settings.)
3330 3-wire sequential initialization
Initializing to User Settings
This function initializes the user constants to values that have been recorded as user settings.
To record the user settings, change the user constants to the desired values and then set user constant o2-03
(User constant initial value) to 1. Once user settings are recorded, the o2-03 value will be automatically reset
to 0. (The 1110 function will be disabled when user constant o2-03 is set to 0.)
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Example of Wiring for 2-wire Sequential Operation
1
2
11
Forward Run/Stop
Reverse Run/Stop
Sequential input common
Fig 4.8 Example of Wiring for 2-wire Sequential Operation
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Example of Wiring for 3-wire Sequential Operation
4