Omron VARISPEED L7 Manual page 184

Related Parameters
Parameter
No.
C5-01 ASR proportional (P) gain 1
C5-02 ASR integral (I) time 1
C5-03 ASR proportional (P) gain 2
C5-04 ASR integral (I) time 2
C5-07 ASR switching frequency
C5-08 ASR integral limit
C5-09 ASR proportional (P) gain 3
C5-10 ASR integral (I) time 3
C5-11 ASR gain for encoder offset tuning
ASR Gain and Integral Time Adjustments
There are three sets of ASR gain and integral times, one for the maximum speed (C5-01/02), one for the mini-
mum speed at acceleration (C5-03/04) and one for the minimum speed at deceleration (C5-09/10) (see the fig-
ure below).
ASR P, I
C5-03 ASR Gain 2
C5-04 ASR I time 2
0Hz C5-07
During Acceleration
When the ride starts with the nominal speed selected, the ASR P gain and I time change from C5-03/04 to C1-
01/02 at nominal speed. When the speed selection changes to leveling speed, the P gain and I time are changed
from C1-01/02 to C1-09/10.
If parameter d1-18 is set to 0 or 3, the nominal/leveling speed detection function must be enabled (refer to
page 6-6, Nominal / Leveling Speed Detection with Multi Speed
Adjusting ASR Proportional Gains (C5-01/03/09)
The gain settings determine how much the ASR input (= speed deviation) is amplified in order to eliminate the
speed deviation. The responsiveness of the ASR is increased when the gain setting is increased but oscillations
can occur when this setting is too high.
Increase C5-03 if the ASR is too slow at start or very low frequencies, decrease it if vibrations occur.
•
Increase C5-01 if the ASR is too slow at high speed or if overshooting occurs at speed changes in the high
•
speed area, decrease it if vibrations occur
Name
ASR P, I
C5-01 ASR Gain 1
C5-02 ASR I time 1
Speed
E1-04
0Hz
Change
Factory
during
Setting V/f
Operation
40.00
Yes -
12.00
0.500 sec.
Yes -
0.300 sec.
20.00
Yes -
6.00
0.500 sec. Yes -
0.0 Hz
No -
2.0%
400% No -
40.00
Yes -
12.00
0.500 sec.
Yes -
0.300 sec.
5.00 No -
C5-09 ASR Gain 3
C5-10 ASR I time 3
C5-01 ASR Gain 1
C5-02 ASR I time 1
C5-07 E1-04
During Deceleration
Inputs) in order to use the ASR 3 settings.
Control Methods
Closed
Open Closed
Loop
Loop Loop
Vector
Vector Vector
(PM)
Q -
-
- Q
Q -
-
- Q
Q -
-
- Q
- Q Q
Q -
-
- Q
- A A
Q -
-
- Q
Q -
-
- Q
- - A
Speed
6-
6
33