YASKAWA GA700 Technical Manual page 995

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n4-64: Speed Estimate Response@Low Freq
No.
Name
(Hex.)
n4-64 Speed Estimate
Response@Low Freq Sets the responsiveness of the speed estimation in low speed ranges, where
(1B84)
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].
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n4-65: Flux Estimate Response@High Freq
No.
Name
(Hex.)
n4-65 Flux Estimate
Response@High Freq Sets the responsiveness of the magnetic flux estimation in high speed
(1B85)
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.
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n4-66: Flux Estimate Response @Low Freq
No.
Name
(Hex.)
n4-66 Flux Estimate
Response @Low
(1B86)
Freq
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.
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n4-67: Estimate Gain Switchover Freq
No.
Name
(Hex.)
n4-67 Estimate Gain
Switchover Freq
(1B87)
If the output frequency > n4-67, the drive will select n4-63 and n4-65. If the output frequency < n4-67, the drive
will select n4-64 and n4-66.
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n4-68: Speed Estimation Filter Time
No.
Name
(Hex.)
n4-68 Speed Estimation
Filter Time
(1B88)
If the motor speed oscillates in the high speed range, set the value to 0.010 s.
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
V/f CL-V/f OLV CLV AOLV
0 ≤ the output frequency, which is < n4-67 [Estimate Gain Switchover
Freq].
V/f CL-V/f OLV CLV AOLV
ranges, where the output frequency is ≥ n4-67 [Estimate Gain Switchover
Freq]. Usually it is not necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
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.
V/f CL-V/f OLV CLV AOLV
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]
V/f CL-V/f OLV CLV AOLV
Sets the primary delay time constant for the speed estimation value. Usually
it is not necessary to change this setting.
11.10 n: Special Adjustment
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Default
(Range)
60.0
(0.1 - 150.0)
Default
(Range)
0.90
(0.50 - 1.50)
Default
(Range)
0.90
(0.50 - 1.50)
Default
(Range)
6.00 Hz
(0.00 - E1-04)
Default
(Range)
0.001 s
(0.001 - 0.010 s)
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