Omron SYSDRIVE 3G3FV

7-20
H Factory Tuning: C8
Para
meter
Name
Description Setting
range
Default
setting
Chan-
ges
Control mode
Page
meter
No.
Display
name
range setting ges
during
opera-
tion
V/f
control
V/f
with
PG
Open
loop
vector
Flux
vector
C8-08
Speed
feedback
detection
control
(AFR) gain
Sets the gain and time constant
of the internal speed feedback
detection control circuit.
Normally it is not necessary to
set these parameters. Adjust in
the following circumstances:
0.00 to
10.00
1.00 NO X X A X 6-5
AFR Gain
th
e
f
o
ll
ow
i
ng c
i
rcums
t
ances:
S Hunting occurs:
Increase C8-09. If that does
C8-09
Speed
feedback
detection
control
(AFR) time
constant
Increase
C8
-
09
.
If
that
does
not correct the problem,
reduce C8-08.
S Poor responsiveness:
Reduce C8-09 as long as
hunting does not occur .
Increase the gain in C8-08
as long as hunting does not
0 to
2000
50 NO X X A X 6-5
AFR Time
as
long
as
hunting
does
not
occur.
Note
Unit for C8-09: ms
C8-30
Carrier
Frequency
Selection
During
Auto-tuning
Sets the carrier frequency
during Auto-tuning. Normally it
is not necessary to set this
parameter
. Adjust if auto-tuning
is not functioning.
0: Sets the carrier frequency
to 2 kHz.
0 to 2 2 NO X X A A 6-8
Carrier in
tune
to
2
kHz
.
1:
Sets the carrier frequency
to the value in C6-01.
2: Sets the carrier frequency
to 5 kHz.
Parameter Lists Chapter 7