YASKAWA A1000 HHP Programming Manual page 56

1.3 C: Tuning
n 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.
C5-05
n 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.
C5-06
n 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.
C5-07
<1> In AOLV/PM and CLV/PM control modes the setting units and range are expressed as a percent (0.0 to 100.0%) instead of in 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
n C5-08: ASR Integral Limit
Sets the upper limit for ASR as a percentage of the rated load.
No.
C5-08
n 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.
Corrective Actions on page 54
No.
C5-12
Setting 0: Disabled
Integral operation occurs only during constant speed and not during acceleration or deceleration.
Setting 1: Enabled
Integral operation is always enabled.
n 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
No.
C5-21
C5-22
C5-23
56
Parameter Name
ASR Limit
Parameter Name
ASR Primary Delay Time Constant
Parameter Name
ASR Gain Switching Frequency
Parameter Name
ASR Integral Limit
to solve such problems.
Parameter Name
Integral Operation during Accel/Decel
Parameter Name
Motor 2 ASR Proportional Gain 1
Motor 2 ASR Integral Time 1
Motor 2 ASR Proportional Gain 2
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Setting Range
0.0 to 20.0%
Setting Range
0.000 to 0.500 s
Setting Range
<1>
0.0 to 400.0 Hz Determined by A1-02
54.
Setting Range
0 to 400%
Refer to ASR Setup Problems and
Setting Range
0, 1
Refer to C5-01, C5-03/
for details.
Setting Range
0.00 to 300.00
0.000 to 10.000 s
0.00 to 300.00
Default
5.0%
Default
Determined by A1-02
Default
<1>
Refer to
Default
400%
Default
0
Default
Determined by E3-01
Determined by E3-01
Determined by E3-01