YASKAWA L1000A Technical Manual page 162

5.3 C: Tuning
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C5-01, C5-03, C5-13 / C5-02, C5-04, C5-14: Speed Control Loop Proportional Gain 1, 2, 3 /
Speed Control Loop Integral Time 1, 2, 3
These parameters adjust the responsiveness of the Speed Control Loop.
No.
C5-01
C5-02
C5-03
C5-04
C5-13
C5-14
Speed Control Loop Gain Tuning (C5-01, C5-03, C5-13)
The higher this setting, the faster the speed response, although a setting that is too high can lead to oscillation.
Speed Control Loop Integral Time Tuning (C5-02, C5-04, C5-14)
Determines how fast a continuous speed deviation problem is eliminated. A setting that is too long reduces the
responsiveness of the speed control. A setting that is too short can cause oscillation.
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C5-06: Speed Control Loop Primary Delay Time Constant
Sets the filter time constant for the time from the speed loop to the torque command output. Increase this setting gradually
in increments of 0.01 for loads with low rigidity or when oscillation is a problem. This parameter rarely needs to be
changed.
No.
C5-06
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C5-07: Speed Control Settings Switching Speed
Sets the speed where the drive should switch between Speed Control Loop proportional gain 1, 2, and 3 (C5-01, C5-03,
and C5-13) as well as between integral time 1, 2, and 3 (C5-02, C5-04, and C5-14).
No.
C5-07
Switching Between Speed Loop Settings Accel/Decel
Switching between speed loop settings helps to achieve optimal performance and riding comfort in all sections of a trip. If
C5-07 is set higher than 0% then the speed loop settings automatically change with the output speed as shown in
Figure 5.11 and Figure 5.12.
Figure 5.11
162
Parameter Name
Speed Control Loop Proportional Gain 1
Speed Control Loop Integral Time 1
Speed Control Loop Proportional Gain 2
Speed Control Loop Integral Time 2
Speed Control Loop Proportional Gain 3
Speed Control Loop Integral Time 3
Parameter Name
Speed Control Loop Primary Delay Time Constant
Parameter Name
Speed Control Settings Switching Speed
P， I
0
Figure 5.11 Settings at Low and High Speed during Acceleration
Setting Range
Setting Range
P = C5-01
I = C5-02
P = C5-03
I = C5-04
Speed
C5-07
YASKAWA ELECTRIC SIEP C710616 38A YASKAWA AC Drive L1000A Technical Manual
Setting Range
0.00 to 300.00
0.000 to 10.000 s
0.00 to 300.00
0.000 to 10.000 s
0.00 to 300.00
0.000 to 10.000 s
0.000 to 0.500 s
0.0 to 100.0% Determined by A1-02
common_
TMonly
Default
Determined by A1-02
Determined by A1-02
Determined by A1-02
Determined by A1-02
Determined by A1-02
Determined by A1-02
Default
0.004 s
Default