Parameter Details
11
11.10 n: Special Adjustment
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual 775
■ n4-63: Speed EstimateResponse@High Freq
No.
(Hex.)
Name Description
Default
(Range)
n4-63
(1B83)
Speed
EstimateResponse@High
Freq
In high speed ranges, where the output frequency is ≥ n4-67 [SwitchingFreq forEstimation gain],
this adjusts the responsiveness of the speed estimation.
60.0
(0.1 - 300.0)
When an improvement in the response of speed estimation is desired, or when the motor speed oscillates, or when
there is a significant amount of torque ripple, increase the setting value in 10.0 increments. If no improvement is
obtained, decrease the setting value in 10.0 increments.
Note:
Before adjusting n4-63, n4-64 [Speed Estimate Response@Low Freq], n4-65 [Flux Estimate Response@High Freq], n4-66 [Flux
Estimate Response @Low Freq], carry out rotational Auto-Tuning.
■ n4-64: Speed Estimate Response@Low Freq
No.
(Hex.)
Name Description
Default
(Range)
n4-64
(1B84)
Speed Estimate
Response@Low Freq
In low speed ranges, where 0 ≤ the output frequency, which is < n4-67 [SwitchingFreq
forEstimation gain], this adjusts the responsiveness of the speed estimation.
60.0
(0.1 - 300.0)
When an improvement in the response of speed estimation is desired, or when the motor speed oscillates, or when
there is a significant amount of torque ripple, increase the setting value in 10.0 increments. If no improvement is
obtained, decrease the setting value in 10.0 increments.
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 [SwitchingFreq forEstimation gain],
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
Sets the responsiveness of the magnetic flux estimation in low speed ranges, where 0 ≤ the output
frequency, which is < n4-67 [Estimate Gain Switchover Freq]. 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
[SpdEstimationResponseForHighFreq], n4-64 [SpdEstimationResponse forLowFreq], n4-65
[FluxEstimationResponseForHighFrq], and n4-66 [FluxEstimationResponseForLowFreq].
Usually it is not necessary to change this setting.
6.00 Hz
(0.00 - 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.
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