Yaskawa Z1000U - Manual (Page 131)

4.8 Auto-Tuning
u Types of Auto-Tuning
The drive offers different types of Auto-Tuning for induction motors and permanent magnet motors. The type of Auto-Tuning
used differs further based on the control mode and other operating conditions. Refer to the tables below to select the type of
Auto-Tuning that bests suits the application. Refer to Start-Up Flowcharts on page 107 for directions on executing Auto-
Tuning.
Note: The drive will only show Auto-Tuning parameters that are valid for the control mode that has been set in A1-02. If the control mode is for
an induction motor, the Auto-Tuning parameters for PM motors will not be available.
n Auto-Tuning for Induction Motors
This feature automatically sets the V/f pattern and motor parameters E1-oo and E2-oo for an induction motor.
Table 4.19 Types of Auto-Tuning for Induction Motors
Type Setting Application Conditions and Benefits
Control
Mode
V/f
Stationary Auto-Tuning for Line-
to-Line Resistance
T1-01 = 2
• The drive is used in V/f Control and other Auto-Tuning selections are not
possible.
• Drive and motor capacities differ.
• Tunes the drive after the cable between the drive and motor has been replaced
with a cable over 50 m long. Assumes Auto-Tuning has already been
performed.
• Should not be used for any vector control modes unless the motor cable has
changed.
YES
Rotational Auto-Tuning for V/f
Control Energy Saving
T1-01 = 3
• Recommended for applications using Speed Estimation Speed Search or using
the Energy Saving function in V/f Control.
• Assumes motor can rotate while Auto-Tuning is executed. Increases accuracy
for certain functions like torque compensation, slip compensation, Energy
Saving, and Speed Search.
YES
Table 4.20 lists the data that must be entered for Auto-Tuning. Make sure this data is available before starting Auto-Tuning.
The necessary information is usually listed on the motor nameplate or in the motor test report provided by the motor
manufacturer. Also refer to page 109 for details on Auto-Tuning processes and selections.
Table 4.20 Auto-Tuning Input Data
Input Value Input Parameter Unit
Tuning Type (T1-01)
2
Stationary Auto-Tuning
for Line-to-Line
Resistance
3
Rotational Auto-Tuning
for V/f Control Energy
Saving
Motor rated power T1-02 kW YES YES
Motor rated voltage T1-03 Vac – YES
Motor rated current T1-04 A YES YES
Motor rated frequency T1-05 Hz – YES
Number of motor poles T1-06 – – YES
Motor rated Speed T1-07 r/min – YES
Motor iron loss T1-11 W – YES
4.8 Auto-Tuning
YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual 131
4
Start-Up Programming & Operation