Parameter Settings During Inertia And Speed Control Loop Auto-Tuning: T3 - YASKAWA T1000A Technical Manual

u Parameter Settings during Inertia and Speed Control Loop Auto-Tuning: T3
These tuning methods apply a sine wave test signal to the system. By the measuring the response the drive estimates the
system inertia. It automatically sets parameters listed in
Table 4.12 Parameters Adjusted by Inertia and Speed Loop Auto-Tuning
Parameter
C5-01 (C5-21)
C5-17 (C5-37)
C5-18 (C5-38)
S6-02 Motor Acceleration Time for Inertia Calculations
S6-03
n5-02
n5-03
n
T3-01: Inertia Tuning Frequency Reference
Sets the frequency of the test signal applied to the motor during Inertia Tuning. Although this setting rarely needs to be
changed, increasing the value may be beneficial when working with high inertia loads.
No.
T3-01
n
T3-02: Inertia Tuning Reference Amplitude
Enter the amplitude of the test signal applied to the motor during Inertia Tuning. Although this setting rarely needs to be
changed, try decreasing the value if the load inertia is too large and causes problems during Inertia Tuning. If a fault
occurs when T3-01 is set to low value, the situation may be remedied by adjusting T3-02.
No.
T3-02
n
T3-03: Motor Inertia
Enter the inertia of the motor. This value is used to determine the load inertia using the test signal response. The default
setting is for a Yaskawa standard motor as listed in the motor inertia table.
No.
T3-03
Note: This value's number of decimal places depends on the drive model and the Heavy/Normal duty selection in parameter C6-01.
The value will have four decimal places (0.0001 kgm
(refer to Table A.2 and
kW to 90 kW.
n
T3-04: ASR Response Frequency
Sets the response frequency (reciprocal of the step response time constant) of the system or the connected machine. The
drive uses this value and the load inertia to fine-tune the speed control loop gain (C5-01, ASR Gain 1). Oscillation may
result if the value input here is higher than the actual response frequency of the system.
No.
T3-04
YASKAWA ELECTRIC SIEP C710616 30B YASKAWA AC Drive T1000A Technical Manual
Description
ASR Proportional Gain 1
Motor Inertia
Motor Inertia Ratio
Load Inertia Ratio
Motor Acceleration Time
Feed Forward Control Ratio Gain
Name
Inertia Tuning Frequency Reference
Name
Inertia Tuning Reference Amplitude
Name
Motor Inertia
2 ) if the drive is set for a Maximum Applicable Motor Capacity up to 37 kW
Table A.3) and three decimal places (0.001 kgm
Name
ASR Response Frequency
Table 4.12.
8
Inertia Tuning
N/A
YES
YES
YES
YES
YES
YES
Setting Range
Setting Range
Setting Range
0.0001 to 600.00 kgm
2
) if the set Maximum Applicable Motor Capacity is 37
Setting Range
4.6 Auto-Tuning
T1-01 or T2-01
9
Speed Control Loop (ASR) Tuning
YES
YES
YES
YES
YES
YES
YES
Default
0.1 to 20.0 Hz 3.0 Hz
Default
0.1 to 10.0 rad 0.5 rad
Default
Depending on o2-04, C6-01, and
2
Default
0.1 to 50.0 Hz 10.0 Hz
E5-01
4
97