Parameter Details
11
11.12 T: Auto-Tuning
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 1039
If the load inertia is too large and the drive detects a fault after Inertia Tuning, decrease the setting. If the drive
detects a fault when T3-01 [Test Signal Frequency] is set to a low value, adjust this parameter.
■ T3-03: Motor Inertia
No.
(Hex.)
Name Description
Default
(Range)
T3-03
(0762)
Motor Inertia
Sets the inertia of the motor. This value uses the test signal response to
calculate the load inertia.
Determined by o2-04,
C6-01, and E5-01
(0.0001 - 6.0000
kgm
2
)
The default setting is for a Yaskawa standard motor as shown in the motor inertia table. Actual values will be
different when you use induction motors or PM motors.
Note:
Capacities smaller than 37 kW are set in units of 0.0001 kgm
2
. Capacities 37 kW and larger are set in units of 0.001 kgm
2
.
■ T3-04: System Response Frequency
No.
(Hex.)
Name Description
Default
(Range)
T3-04
(0763)
System Response
Frequency
This parameter uses the load inertia value from the Inertia Tuning process to
automatically calculate and set C5-01 [ASR Proportional Gain 1].
10.0 Hz
(0.1 - 50.0 Hz)
If this input value is too high, it can cause oscillation.
◆ T4: EZ Tuning
Use T4 parameters to input the data necessary for motor parameter Auto-Tuning when A1-02 = 8 [Control
Method Selection = EZ Vector Control]. These two modes are available:
Value set in T4-01 Operational overview Items input for tuning Items tuned
0 Follow the instructions in the
setup wizard on the keypad to
manually enter the necessary
motor parameters.
• T4-02 [Motor Type Selection]
• T4-03 [Motor Max
Revolutions]
• T4-04 [Motor Rated
Revolutions]
• T4-05 [Motor Rated
Frequency]
• T4-06 [Motor Rated Voltage]
• T4-07 [Motor Rated Current]
• T4-08 [Motor Rated Capacity]
• T4-09 [Number of Poles]
• E9-01 [Motor Type Selection]
• E9-02 [Maximum Speed]
• E9-03 [Rated Speed]
• E9-04 [Base Frequency]
• E9-05 [Base Voltage]
• E9-06 [Motor Rated Current
(FLA)]
• E9-07 [Motor Rated Power
(kW)]
• E9-08 [Motor Pole Count]
• E9-09 [Motor Rated Slip]
• E9-10 [Motor Line-to-Line
Resistance]
1 Do only line-to-line resistance
tuning.
Motor Rated Current (FLA) E9-10 [Motor Line-to-Line
Resistance]
*1 When you use a PM motor or a synchronous reluctance motor, it is not necessary to use the setup wizard. The drive will use the rated
rotation speed and number of motor poles to automatically calculate the rated frequency.
■ T4-01: EZ Tuning Mode Selection
No.
(Hex.)
Name Description
Default
(Range)
T4-01
(3130)
EZ Tuning Mode
Selection
Sets the type of Auto-Tuning for EZOLV control.
0
(0, 1)
0 : Motor Parameter Setting
1 : Line-to-Line Resistance
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