YASKAWA CIMR-G5A 2015 - Factory Tuning: C8

User Constants
8.2.2 Autotuning Constants: C
8-16
J
Factory Tuning: C8
C
Name
S
Change
Control Methods
Constant
Number
Display
Description
Setting
Range
Factory
Setting
Change
during
Opera-
tion
V/f
V/f
with
PG
Open
Loop
Vector
Flux
Vector
Page
C8 08
AFR gain
Sets the internal speed feedback
detection control section as a ra-
tio.
:Usually setting is not necessary.
Adjust in the following circum-
stances:
S
When
hunting
occurs
increase
0.00 to
100
×
×
×
A
×
7
5
C8-08
AFR Gain
S When hunting occurs, increase
the set values.
S
When responsiveness is low,
decrease the set values.
Change the responsiveness in 0.05
units at a time, checking after
each change.
0
.
00
to
10.00
1.00
× × ×
A
×
7-5
C8-09
Speed Feedback
Detection Limit (ARF)
Time
S Increase setting if hunting oc-
curs.
S Decrease settin
g
if res
p
onse is
0to
2000
50
× × ×
A
×
−−
AFR Time
S
Decrease
setting
if
response
is
poor.
2000
C8-30
Carrier frequency
selection during auto-
tuning
0: Carrier frequency is set to
2.0 kHz.
1: Carrier frequency is set to a val-
ue as set in C6-01.
2
Ci
f
i
0, 1, 2 2
× × ×
A
×
−−
Carrier in tune
2: Carrier frequency is set to
5 kHz. (2.5 kHz for 400 V class,
185 to 300 kW inverters)
8