YASKAWA T1000V Technical Manual page 139

Figure 5.26 illustrates the ASR function when using V/f with Simple Speed Feedback.
Figure 5.26
Figure 5.26 Speed Control with ASR in V/f with Simple Speed Feedback
To activate V/f Control with PG feedback:
1. Set the drive to V/f Control (A1-02 = 0).
2. Connect the motor speed pulse signal to the pulse input RP, set H6-01 = 3, and set the pulse signal frequency that is
equal to the maximum speed to H6-02 (pulse input scaling). Make sure the pulse input bias (H6-04) is 0% and the gain
(H6-03) is 100%.
3. Decide the signal used for detecting the direction. If a digital input is used set H1-
4. Use the ASR gain and integral time parameters described below for adjusting the ASR responsiveness.
Note: 1. C5 parameters will appear only when using V/f Control (A1-02 = 0) and when the pulse input RP function is set for PG feedback in
V/f Control (H6-01 = 3).
2. V/f Control with PG feedback can be used for motor 1 only.
ASR Tuning Parameters
ASR provides two sets of gain and integral time. Set 1 is active at the maximum output frequency, set 2 is active at the
minimum output frequency. The settings are changed linearly depending on the output frequency as shown in
Figure 5.27.
Figure 5.27
C5-01, C5-02: ASR Proportional Gain 1, ASR Integral Time 1
■
These parameters determine the responsiveness of ASR at maximum output frequency.
• Increase the gain and/or reduce the integral time if the response is slow at maximum output frequency.
• Reduce the gain and/or increase the integral time when vibrations occur at the maximum output frequency.
• When adjusting ASR always first adjust the P gain, then adjust the integral time.
No.
C5-01
C5-02
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
(sold separately)
P gain and I time
0
E1-09
Minimum
Output
Frequency
Figure 5.27 Adjusting ASR Proportional Gain and Integral Time
Parameter Name
ASR Proportional Gain 1
ASR Integral Time 1
Motor speed
P = C5-01
I = C5-02
P = C5-03
I = C5-04
Motor Speed
E1-04
Maximum
Output
Frequency
Setting Range
0.00 to 300.00
0.000 to 10.000 s
5.3 C: Tuning
= 7F.
Default
0.20
0.200 s
5
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