12.10 n: Special Adjustment
1016 YASKAWA SIEPC71061737D GA800 Drive Technical Reference
If better response of speed estimation is necessary, or if the motor oscillates, or if there is a large quantity of torque
ripple, increase the setting value in 10.0 unit increments. If this does not make it better, decrease the setting value in
10.0 unit increments.
Note:
Do rotational Auto-Tuning before you adjust n4-63, n4-64 [Speed Estimate Response@Low Freq], n4-65 [Flux Estimate Response@High
Freq], and n4-66 [Flux Estimate Response @Low Freq].
■ n4-64: Speed Estimate Response@Low Freq
No.
(Hex.)
Name Description
Default
(Range)
n4-64
(1B84)
Speed Estimate
Response@Low Freq
Sets the responsiveness of the speed estimation in low speed ranges, where 0 ≤ the output frequency,
which is < n4-67 [Estimate Gain Switchover Freq].
60.0
(0.1 - 300.0)
If better response of speed estimation is necessary, or if the motor oscillates, or if there is a large quantity of torque
ripple, increase the setting value in 10.0 unit increments.
Note:
Do rotational Auto-Tuning before you adjust n4-63 [Speed EstimateResponse@High Freq], n4-64, n4-65 [Flux Estimate Response@High
Freq], and n4-66 [Flux Estimate Response @Low Freq].
■ n4-65: Flux Estimate Response@High Freq
No.
(Hex.)
Name Description
Default
(Range)
n4-65
(1B85)
Flux Estimate
Response@High Freq
Sets the responsiveness of the magnetic flux estimation in high speed ranges, where the output
frequency is ≥ n4-67 [Estimate Gain Switchover Freq]. Usually it is not necessary to change this
setting.
1.00
(0.50 - 3.00)
If the drive detects oS [Overspeed] in no-load conditions, or if the speed does not become stable in the high speed
range, increase or decrease the setting value in 0.05 unit increments.
■ 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 the drive detects oS [Overspeed] in no-load conditions, or if the speed does not become stable in the low speed
range, increase or decrease the setting value in 0.05 unit increments.
■ n4-67: Estimate Gain Switchover Freq
No.
(Hex.)
Name Description
Default
(Range)
n4-67
(1B87)
Estimate Gain Switchover
Freq
Sets the switching frequency for estimation gain for these parameters:
n4-63 [Speed EstimateResponse@High Freq]
n4-64 [Speed Estimate Response@Low Freq]
n4-65 [Flux Estimate Response@High Freq]
n4-66 [Flux Estimate Response @Low Freq]
Usually it is not necessary to change this setting.
6.00 Hz
(0.00 - E1-04 setting)
When the output frequency ≥ n4-67, the drive will select n4-63 and n4-65. When the output frequency < n4-67, the
drive will select n4-64 and n4-66.
To Next Page
Loading...
