Omron VARISPEED L7 User Manual

6-33
6
Related Parameters
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).
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 Inputs) in order to use the ASR 3 settings.
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
Parameter
No.
Name
Factory
Setting
Change
during
Operation
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
Closed
Loop
Vector
(PM)
C5-01 ASR proportional (P) gain 1
40.00
Ye s - -
Q-
12.00 - Q
C5-02 ASR integral (I) time 1
0.500 sec.
Ye s - -
Q-
0.300 sec. - Q
C5-03 ASR proportional (P) gain 2
20.00
Ye s - -
Q-
6.00 - Q
C5-04 ASR integral (I) time 2 0.500 sec. Yes - - Q Q
C5-07 ASR switching frequency
0.0 Hz
No - -
Q-
2.0% - Q
C5-08 ASR integral limit 400% No - - A A
C5-09 ASR proportional (P) gain 3
40.00
Ye s - -
Q-
12.00 - Q
C5-10 ASR integral (I) time 3
0.500 sec.
Ye s - -
Q-
0.300 sec. - Q
C5-11 ASR gain for encoder offset tuning 5.00 No - - - A
C5-070Hz E1-04
C5-01 ASR Gain 1
C5-02 ASR I time 1
C5-03 ASR Gain 2
C5-04 ASR I time 2
Speed
ASR P, I
C5-070Hz E1-04
C5-01 ASR Gain 1
C5-02 ASR I time 1
C5-09 ASR Gain 3
C5-10 ASR I time 3
Speed
ASR P, I
During Acceleration During Deceleration

Omron VARISPEED L7 Specifications

General

Brand	Omron
Model	VARISPEED L7
Category	Inverter
Language	English