Yaskawa G5HHP Drive - Manual (Page 149)

6.4 Flux Vector Control
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6.4.3 Autotuning
CAUTION
D Do not connect a load to the motor when performing autotuning.
Doing so may result in personal injury or equipment damage.
When motor cannot be disconnected from the load, motor constants can be set by calculation. Contact your
YASKAWA representatives for details.
J
Precautions Before Autotuning
D
The Inverter’s autotuning function automatically determines the motor constants while a servo system’s
autotuning function determines the size of a load, so these autotuning functions are fundamentally dif-
ferent.
D
If a load is connected when autotuning is performed, not only will incorrect motor constants be recorded,
but the motor may operate erratically or unexpectedly. Disconnect the load before autotuning.
D
The motor shaft will rotate when autotuning is performed. Confirm safety before starting autotuning.
D
When motor cannot be disconnected from the load, motor constants can be set by calculation. Contact
your YASKAWA representatives for details.
J
Inverter Input Voltage Setting: E1-01
D
Set the Inverter input voltage to match the power supply voltage.
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
E1-01 Input voltage setting x
360 to 460
(460 to 690) VAC
400
(600)
Q Q Q Q
D
The voltage settings shown in parentheses are for 575-V class Inverters.
D
This setting is used as the reference value for functions such as the protection functions.
J
Required Constant Settings
1. Enter autotuning mode and make the following constant settings:
•
Rated Voltage *
Set the rated voltage (VAC) shown on the motor nameplate.
•
Rated Current
Set the rated current (A) shown on the motor nameplate.
•
Rated Frequency
Set the rated frequency (Hz) shown on the motor nameplate.
•
Rated Speed
Set the rated speed (r/min) shown on the motor nameplate.
•
Number of Poles
Set the number of poles.
•
Motor Selection
Select motor 1 or motor 2. (Normally select motor 1.).
•
PG Pulses/Rev:
Set the number of A-phase or B-phase pulses per revolution.
2. The following message will appear when the constants have been set:
Tuning Ready?
Press RUN key
The “Press RUN Key” message will
blink.
3. At this point, it is still possible to change the constant settings by pressing the Increment and Decrement
Keys to display the desired constant.
4. Press the STOP Key to cancel autotuning, and then press the MENU Key and DATA/ENTER Key. The
operation mode display will appear.
* Rated voltage forvectorcontrol motors is approx. 10 to 20% lowerthan general--purpose mo-
tors. Always verify motor voltage listed on the nameplate or test report before use.
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