YASKAWA T1000V - Page 139

5.3 C: Tuning
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual 139
Parameter Details
5
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- = 7F.
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
Figure 5.27 Adjusting ASR Proportional Gain and Integral Time
■ 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. Parameter Name Setting Range Default
C5-01 ASR Proportional Gain 1 0.00 to 300.00 0.20
C5-02 ASR Integral Time 1 0.000 to 10.000 s 0.200 s
Motor speed
(sold separately)
0
P = C5-03
I = C5-04
P = C5-01
I = C5-02
P gain and I time
Motor Speed
E1-04
Maximum
Output
Frequency
E1-09
Minimum
Output
Frequency