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C5-05: ASR Limit
Sets the ASR output limit as a percentage of the maximum output frequency (E1-04). If the motor rated slip is high, the setting
might need to be increased to provide proper motor speed control. Use the ASR output monitor U6-04 to determine if ASR is
working at the limit set in C5-05. If ASR is working at the limit, make sure the PG pulses (F1-01), PG gear teeth (F1-12,
F1-13), and the PG signal are set correctly before making further changes to C5-05.
No.
Parameter Name
Setting Range
Default
C5-05
ASR Limit
0.0 to 20.0%
5.0%
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C5-06: ASR 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.
Parameter Name
Setting Range
Default
C5-06
ASR Primary Delay Time Constant
0.000 to 0.500 s
Determined by A1-02
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C5-07: ASR Gain Switching Frequency
Sets the frequency where the drive should switch between ASR proportional gain 1 and 2 (C5-01, C5-03) as well as between
integral time 1 and 2 (C5-02, C5-04).
No.
Parameter Name
Setting Range
Default
C5-07
ASR Gain Switching Frequency
0.0 to 400.0 Hz
Note:
A multi-function input set for the ASR gain switch (H1-
oo
= 77) takes priority over the ASR gain switching frequency.
Switching the proportional gain and integral time in the low or high speed range can help stabilize operation and avoid resonance
problems. A good switching point is 80% of the frequency where oscillation occurs or at 80% of the target speed.
C5-01, C5-03/C5-02, C5-04: ASR Proportional Gain 1, 2/ASR Integral Time 1, 2 on page 54
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C5-08: ASR Integral Limit
Sets the upper limit for ASR as a percentage of the rated load.
No.
Parameter Name
Setting Range
Default
C5-08
ASR Integral Limit
0 to 400%
400%
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C5-12: Integral Operation during Accel/Decel (V/f w/PG)
Enables integral operation during acceleration and deceleration. Use integral operation when driving a heavy load or a high
inertia load (default). Set C5-12 to 1 to use integral operation for low inertia/high performance loads. Enabling integral
operation may cause problems with overshoot at the end of acceleration and deceleration.
Refer to ASR Setup Problems and
No.
Parameter Name
Setting Range
Default
C5-12
Integral Operation during Accel/Decel
0, 1
0
Setting 0: Disabled
Integral operation occurs only during constant speed and not during acceleration or deceleration.
Setting 1: Enabled
Integral operation is always enabled.
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C5-21, C5-23 / C5-22, C5-24: Motor 2 ASR Proportional Gain 1, 2 / Integral Time 1, 2
These parameters function for motor 2 the same way that C5-01 through C5-04 function for motor 1.
C5-02, C5-04: ASR Proportional Gain 1, 2/ASR Integral Time 1, 2 on page 54
for details.
No.
Parameter Name
Setting Range
Default
C5-21
Motor 2 ASR Proportional Gain 1
0.00 to 300.00
Determined by E3-01
C5-22
Motor 2 ASR Integral Time 1
0.000 to 10.000 s
Determined by E3-01
C5-23
Motor 2 ASR Proportional Gain 2
0.00 to 300.00
Determined by E3-01
1.3 C: Tuning
56
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Summary of Contents for A1000 HHP
Page 359: ......
