YASKAWA GA800 Programming Manual page 267

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C5-23: Motor 2 ASR Proportional Gain 2
No.
Name
(Hex.)
C5-23 Motor 2 ASR Proportional
Gain 2
(0358)
RUN
A higher gain provides a higher speed response. Usually, the gain increases with larger loads. Too much gain causes
vibration.
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C5-24: Motor 2 ASR Integral Time 2
No.
Name
(Hex.)
C5-24 Motor 2 ASR Integral Time
2
(0359)
RUN
When you increase the integral time, the responsiveness will decrease. An integral time that is too short can cause
oscillation.
Note:
The drive usually sets Motor 2 ASR with C5-21 [Motor 2 ASR Proportional Gain 1] and C5-22 [Motor 2 ASR Integral Time 1]. You can also
use C5-24 [Motor 2 ASR Integral Time 2] instead of C5-22 when the speed is less than or equal to the frequency set in C5-27 [Motor 2 ASR
Gain Switchover Freq].
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C5-25: Motor 2 ASR Limit
No.
Name
(Hex.)
C5-25 Motor 2 ASR Limit
(035A)
If the motor rated slip is high, it is necessary to increase the setting for correct motor speed control. Use U6-04 [ASR
Output] to make sure that ASR is operating at the limit set in this parameter. When ASR is operating at the limit,
correctly set the PG signal and these parameters before you make changes to C5-25.
• F1-31 [Encoder 2 Pulse Count (PPR)]
• F1-33 [Encoder 2 Gear Teeth 1]
• F1-34 [Encoder 2 Gear Teeth 2]
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C5-26: Motor 2 ASR Delay Time
No.
Name
(Hex.)
C5-26 Motor 2 ASR Delay Time
(035B)
If you have a load with low rigidity or if oscillation is a problem, decrease C5-21 in 2-unit decrements or decrease
C5-26 in 0.001-unit decrements.
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C5-27: Motor 2 ASR Gain Switchover Freq
No.
Name
(Hex.)
C5-27 Motor 2 ASR Gain
Switchover Freq
(035C)
Switching the proportional gain and integral time in the low or high speed range can help operation become stable. A
good switching point is 80% of the frequency where oscillation occurs or at 80% of the maximum output frequency.
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
V/f CL-V/f OLV CLV AOLV
Sets the gain to adjust ASR response for motor 2.
V/f CL-V/f OLV CLV AOLV
Sets the ASR integral time for motor 2.
V/f CL-V/f OLV CLV AOLV
Set the motor 2 ASR output limit as a percentage of E1-04 [Maximum Output Frequency].
V/f CL-V/f OLV CLV AOLV
Sets the motor 2 filter time constant of the torque reference output from the speed loop. Usually it is
not necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Sets the frequency where the drive will switch between these parameters:
C5-21 and C5-23 [Motor 2 ASR Proportional Gain 1/2]
C5-22 and C5-24 [Motor 2 ASR Integral Time 1/2]
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
2.4 C: Tuning
Default
(Range)
Determined by E3-01
(0.00 - 300.00)
Default
(Range)
Determined by E3-01
(0.000 - 60.000 s)
Default
(Range)
5.0%
(0.0 - 20.0%)
Default
(Range)
Determined by E3-01
(0.000 - 0.500 s)
Default
(Range)
0.0
(0.0 - 400.0)
2
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