Perform the following steps for adjusting ASR parameters:
1.
Run the motor at zero speed and increase the ASR gain (C5-01) as much as possible without oscillation.
2.
Run the motor at zero speed and decrease the ASR integral time (C5-02) as much as possible without oscillation.
3.
Run at the normal operating speed. Check for over/undershoot when changing speed and for any oscillation.
4.
If problems occur in step 3, increase the integral time and reduce the gain.
Alternatively, use different ASR settings for high and low speed. Set the values from step 1 and 2 to parameters C5-03
and C5-04, then set an ASR switching frequency in parameter C5-07. Run the motor at a speed higher than C5-07
and repeat step 3 while adjusting C5-01 and C5-02.
Solving Problems During ASR Setup
when making adjustments to ASR. Though the parameters listed below are for motor 1, the same changes can
be made to the corresponding motor 2 parameters when running a second motor.
Table 1.25 ASR Setup Problems and Corrective Actions
Problem
Possible Solutions
Slow response to speed changes or
speed deviation lasts for too long
Time
Speed reference
Motor Speed
• Increase the ASR gain.
• Decrease the integral time.
Overshoot or undershoot at the end
of acceleration or deceleration
Time
Speed reference
Motor Speed
• Decrease the ASR gain.
• Increase the integral time.
Vibration and oscillation occur at
constant speed
Time
Speed reference
Motor Speed
• Decrease the ASR gain.
• Increase the integral time.
• Increase the ASR delay time (C5-06).
The motor slip is not fully
compensated when running in V/f
Control with PG
Time
Speed reference
Motor Speed
• Check the pulse number set to F1-01 and the gear ratio in F1-12
and F1-13.
• Make sure the pulse signal from the encoder is set up properly.
• Check monitor U6-04 and determine if the ASR is working at
its output limit (setting of C5-05). If the ASR is at the output
limit, increase C5-05.
Integral operation is enabled in
V/f Control with PG (C5-12 = 1)
and over/undershoot occurs when
changing speed.
-
• Decrease the ASR gain.
• Increase the integral time.
• Reduce the ASR output limit set in C5-05.
Oscillation at low speed and
response is too slow at high speed
(or vice versa)
-
• V/f control: Use C5-01/02 and C5-03/04 to set up different
ASR settings at minimum and maximum speed.
• CLV, AOLV/PM, CLV/PM: Use C5-01, C5-02 and C5-03,
C5-04 to define optimal ASR settings for high and low speed.
Use C5-07 to define a switching frequency.
n
C5-01, C5-03/C5-02, C5-04: ASR Proportional Gain 1, 2/ASR Integral Time 1, 2
These parameters adjust the responsiveness of the ASR.
No.
Parameter Name
Setting Range
Default
C5-01
ASR Proportional Gain 1
0.00 to 300.00
Determined by
A1-02
C5-02
ASR Integral Time 1
0.000 to 10.000 s
Determined by
A1-02
C5-03
ASR Proportional Gain 2
0.00 to 300.00
Determined by
A1-02
1.3 C: Tuning
54
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
Summary of Contents for A1000 HHP
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