Yaskawa VS-616G5 Series Revision F Programming Manual - Manual (Page 38)

V/f V/f w/PG Open Loop
Vector
Flux
Vector
38 VS-616G5 Programming Manual
Setting Range: 0.0 to 200.0%
Factory Default: 0.0
This parameter may improve the motor performance during start. This feature functions only when
starting a motor. Torque reference and motor flux can be ramped up quickly to improve speed
response during start. A setting of 0.0 disables this feature.
Setting Range: 0 to 200 ms
Factory Default: 1 ms
This parameter functions with C4-03 and C4-04. This parameter is the time delay that will be applied
to the Torque Compensation parameters C4-03 and C4-04. A setting of less than 4 milliseconds (ms)
causes this filter to be disabled.
C5 ASR Tuning
The automatic speed regulator (ASR) provides optimum performance during changes in motor speed
or load, when speed feedback is provided.
C4-04 Reverse Torque Compensation Value at Start
<1110>
R TorqCmp @ start - - A -
C4-05 Torque Compensation Time Constant@Start
<1110>
TorqCmp Delay T - - A -
Figure 20 ASR Block Diagram (Flux Vector Control)
Speed Reference P
C5-01, C5-03
+
-
I
Speed Feedback
C5-02, C5-04
C5-06
L7-01 ~ L7-04
1
1 + ST
Torque Limit
Secondary Current Reference
+
+
Figure 19 ASR Block Diagram (V/f Control with PG Feedback)
Frequency Reference
P
C5-01, C5-03
+
-
I
Speed Feedback
C5-02, C5-04
C5-05
Limit
Output Frequency
+
+
+
+
Variation
Ratio Limit
Section C: Tuning Parameters
C5 ASR Tuning