Yaskawa DriveWizard Plus User Manual
Page 146
146
WARNING
Motor may have some features that the drive is not capable of measuring, and there may be
times when the motor cannot be disconnected from the load to perform proper Auto-Tuning.
Note the following:
・
Auto-Tuning may only help a little, but is still better than running without Auto-Tuning.
・
Be sure to enter data from the motor test report or from the motor nameplate when
using Open Loop Vector.
・
If you cannot collect this data, operate the drive in V/f Control.
WARNING
Proper precautions must be taken when performing Back EMF Constant Tuning.
Be sure to read the instruction manual thoroughly, paying particular attention to the following
points:
・
Perform the Z Pulse Offset Tuning before starting the Back EMF Constant Tuning.
・
Make sure of the followings before starting the Back EMF Constant Tuning.
・
When there is no test report of the PM motor
The PM Stationary Auto-Tuning must have been performed.
・
When there is a test report of the PM motor, or if the rated nameplate values of the PM
motor are known
The following values must have been set by using Parameter Calculations function or
manually set in the relevant parameters.
- Motor Rated Frequency or Rated Speed
- Motor Rated Current (E5-03)
- Number of Motor Poles (E5-04)
- Motor Stator Resistance (E5-05)
- Motor d-Axis Inductance (E5-06)
- Motor q-Axis Inductance (E5-07)
・
Make sure that the motor has been decoupled from the load when performing PM
Stationary Auto-Tuning. The motor should also be properly installed to a secure base.
Any motor keys or other loose parts should be removed from the area to prevent
accidents that may result when the motor begins to rotate.
・
Clear the area around the motor.
WARNING
The high frequency injection parameter calculates and sets from the PM motor parameter.
Please check the following before operation.
・
Please set the PM motor parameter before executing high frequency injection
parameter tuning.
NOTE: Auto-Tuning is not possible if one of the external terminals is set to the baseblock
command and that command is currently enabled.