YASKAWA GA700 Technical Manual page 661

Note:
• Motor 2 ASR is normally set using C5-21 and C5-22 [Motor 2 ASR Integral Time 1]. C5-23 [Motor 2 ASR Proportional Gain 2] can
be used instead of C5-21 by setting H1-xx = 77 [MFDI Function Select = ASR Gain Switch]. C5-23 can also be used in place of C5-21
when the speed is less than or equal to the frequency set in C5-27 [Motor 2 ASR Gain Switchover Freq].
• C5-21 is automatically adjusted when the ASR Tuning process is executed.
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C5-22: Motor 2 ASR Integral Time 1
No.
Name
(Hex.)
C5-22 Motor 2 ASR Integral
Time 1
(0357)
RUN
An integral time that is too long reduces the responsiveness of the speed control and weakens repulsion against
external force. An integral time that is too short can cause oscillation.
Note:
Closed Loop Vector Control is normally set using C5-21 [Motor 2 ASR Proportional Gain 1] and C5-22 [Motor 2 ASR Integral Time 1].
C5-22 can also be used instead of C5-24 Motor 2 ASR Integral Time 2] when the speed is less than or equal to the frequency set to C5-
27 [Motor 2 ASR Gain Switchover Freq].
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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
The speed response increases with the weight of the load. Normally, the gain increases with larger loads. Note that
excessive gain causes oscillation.
■
C5-24: Motor 2 ASR Integral Time 2
No.
Name
(Hex.)
C5-24 Motor 2 ASR Integral
Time 2
(0359)
RUN
An integral time that is too long reduces the responsiveness of the speed control and weakens repulsion against
external force. An integral time that is too short can cause oscillation.
Note:
Closed Loop Vector Control is normally set using C5-21 [Motor 2 ASR Proportional Gain 1] and C5-22 [Motor 2 ASR Integral Time 1].
C5-22 can also be used instead of C5-24 when the speed is less than or equal to the frequency set to C5-27 [Motor 2 ASR Gain
Switchover Freq].
■
C5-25: Motor 2 ASR Limit
No.
Name
(Hex.)
C5-25 Motor 2 ASR Limit
(035A)
If the motor rated slip is high, the setting might need to be increased to provide proper motor speed control. Use
U6-04 [ASR Output] to determine if ASR is working at the limit set to C5-05. If ASR is working at the limit,
make sure F1-31 [PG 2 Pulses Per Revolution], F1-33 [PG 2 Gear Teeth 1], F1-34 [PG 2 Gear Teeth 2], and the
PG signal are set correctly before making further changes to C5-25.
YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual
V/f CL-V/f OLV CLV AOLV
Sets the ASR integral time.
V/f CL-V/f OLV CLV AOLV
Sets the gain to adjust ASR response.
V/f CL-V/f OLV CLV AOLV
Sets the ASR integral time.
V/f CL-V/f OLV CLV AOLV
Sets the ASR output limit as a percentage of E1-04 [Maximum Output
Frequency].
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
11.4 C: Tuning
Default
(Range)
Determined by E3-01
(0.000 - 10.000 s)
Default
(Range)
Determined by E3-01
(0.00 - 300.00)
Default
(Range)
Determined by E3-01
(0.000 - 10.000 s)
Default
(Range)
5.0%
(0.0 - 20.0%)
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