YASKAWA ELECTRIC
SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
733
Note:
Before adjusting
n4-63 [Speed EstimateResponse@High Freq]
,
n4-64
,
n4-65 [Flux Estimate Response@High Freq]
,
n4-66 [Flux
Estimate Response @Low Freq]
, carry out rotational Auto-Tuning.
n4-65: Flux Estimate Response@High Freq
No.
(Hex.)
Name
Description
Default
(Range)
n4-65
(1B85)
Flux Estimate
Response@High Freq In high speed ranges, where the output frequency is ≥
n4-67 [Estimate Gain
Switchover Freq]
, this adjusts the responsiveness of the magnetic flux
estimation. Usually it is not necessary to change this setting.
1.00
(0.50 - 3.00)
If, under no-load conditions,
oS [Overspeed]
is detected, or if for any other reason the speed does not stabilize
within the high speed range, adjust the setting value up or down in increments of 0.05.
n4-66: Flux Estimate Response @Low Freq
No.
(Hex.)
Name
Description
Default
(Range)
n4-66
(1B86)
Flux Estimate
Response @Low
Freq
In low speed ranges, where 0 ≤ the output frequency, which is <
n4-67
[Estimate Gain Switchover Freq]
, this adjusts the responsiveness of the
magnetic flux estimation. Usually it is not necessary to change this setting.
1.50
(0.50 - 3.00)
if, under no-load conditions,
oS [Overspeed]
is detected, or if for any other reason the speed does not stabilize
within the low speed range, adjust the setting value up or down in increments of 0.05.
n4-67: Estimate Gain Switchover Freq
No.
(Hex.)
Name
Description
Default
(Range)
n4-67
(1B87)
Estimate Gain
Switchover Freq
Set the switching frequency for estimation gain for each of the following:
n4-63 [Speed EstimateResponse@High Freq]
,
n4-64 [Speed Estimate
Response@Low Freq]
,
n4-65 [Flux Estimate Response@High Freq]
, and
n4-66 [Flux Estimate Response @Low Freq]
. Usually it is not necessary to
change this setting.
6.00 Hz
(0.00 to E1-04)
If the output frequency is greater than
n4-67
,
n4-63
and
n4-65
are selected. If the output frequency is less than
n4-
67
,
n4-64
and
n4-66
are selected.
n4-68: Speed Estimation Filter Time
No.
(Hex.)
Name
Description
Default
(Range)
n4-68
(1B88)
Speed Estimation
Filter Time
Sets the primary delay time constant for the speed estimation value. Usually
it is not necessary to change this setting.
0.001 s
(0.001 - 0.010 s)
If the motor speed oscillates in the high speed range, set the value to 0.010 s.
n4-69: Flux Control Response
No.
(Hex.)
Name
Description
Default
(Range)
n4-69
(1B89)
Flux Control
Response
Unifies control of magnetic flux to make motor vibrations more stable.
1.00
(0.00 - 60.00)
If step-out occurs when the load changes, decrease the setting value in 1.00 increments.
Note:
If heavy loads decrease motor speed, increase the setting value in 1.00 increments. If it does not get better, increase
n4-74 [Limit of Flux
Loop]
in 20% increments.
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
V/f
CL-V/f
OLV
CLV
AOLV
