YASKAWA GA800 Series, Техническое описание

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Parameter
Details
12
12.10 n: Special Adjustment
YASKAWA SIEPC71061737B GA800 Drive Technical Reference 957
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 .
■
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.
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V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
V/f CL-V/f OLV CLV AOLV OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV