Before auto-tuning the drive – Yaskawa Z1000 AC Drive HVAC User Manual
Page 137
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Auto-Tuning for Permanent Magnet Motors
Automatically sets the V/f pattern and motor parameters E1- and E5- when a PM motor is used.
Table 4.20 Types of Auto-Tuning for Permanent Magnet Motors
Type
Setting
Application Conditions and Benefits
Control Mode
OLV/PM
PM Motor Parameter
Settings
T2-01 = 0
• Motor does not rotate during Auto-Tuning.
• Motor test report or motor data similar to
are available.
YES
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
for details on the Auto-Tuning process and selection.
Table 4.21 Auto-Tuning Input Data
Input Value
Input Parameter
Unit
Tuning Type (T2-01)
0
Motor Parameter
Settings
Control Mode
A1-02
–
5
Motor Type
T2-03
–
–
Motor Rated Power
T2-04
kW
YES
Motor Rated Voltage
T2-05
Vac
YES
Motor Rated Current
T2-06
A
YES
Motor Rated Frequency
T2-07
Hz
YES
Number of Motor Poles
T2-08
–
YES
Stator Single-phase Resistance
T2-10
Ω
YES
d-Axis Inductance
T2-11
mH
YES
q-Axis Inductance
T2-12
mH
YES
Induced Voltage Constant Unit Selection
<1>
T2-13
mVs/rad (elec.)
YES
Voltage Constant
<1>
<2>
T2-14
mVmin (mech.)
YES
Tuning Pull-in Current
T2-15
A
–
T2 Tuning Start
T2-18
–
YES
<1> It is only necessary to input either T2-13 or T2-14. Select one and leave the other empty.
<2> Dependent upon T2-13 setting.
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Before Auto-Tuning the Drive
Check the items below before Auto-Tuning the drive.
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Basic Auto-Tuning Preparations
• Auto-Tuning requires the user to input data from the motor nameplate or motor test report. Make sure this data is available
before Auto-Tuning the drive.
• For best performance, the drive input supply voltage must be at least equal to or greater than the motor rated voltage.
Note:
Better performance is possible when using a motor with a base voltage that is lower than the input supply voltage (60 V for 600 V class
models). This is particularly important when operating the motor above 90% of base speed, where high torque precision is required.
• To cancel Auto-Tuning, press the OFF key on the HOA keypad.
• When using a motor contactor, make sure it is closed throughout the Auto-Tuning process.
Table 4.22 Auto-Tuning Input Data
Motor Type
Auto-Tuning Type
Digital Input
Digital Output
Induction
Motor
Stationary Auto-Tuning for Line-to-Line Resistance
Digital input functions
are disabled.
Maintains the status at the start of Auto-Tuning
Rotational Auto-Tuning for V/f Control
Functions the same as during normal operation
PM Motor PM Motor Parameter Settings
Digital output functions are disabled.
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Notes on Stationary Auto-Tuning
Stationary Auto-Tuning modes analyze motor characteristics by injecting current into the motor for approximately one minute.
4.8 Auto-Tuning
YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual
137
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Start-Up Programming & Operation