Parameter List
10
10.12 n: Special Adjustment
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual 581
◆ n4: Observer
No.
(Hex.)
Name Description
Default
(Range)
Ref.
n4-60
(1B80)
Motoring Low
Speed Comp Gain
Sets a compensation gain to improve the control qualities for
motoring loads in the low speed range.
100.0%
(50.0 - 200.0%)
994
n4-61
(1B81)
Low Speed Comp
Frequency Level
Sets a frequency at which the settings for n4-60 [Motoring Low
Speed Comp Gain], n4-62 [Regen Low Speed Comp Gain] are
enabled. When the output frequency < n4-61, the drive adjusts the
torque to agree with the settings for n4-60 and n4-62. Usually it is
not necessary to change this setting.
6.00 Hz
(0.50 - 12.00 Hz)
994
n4-62
(1B82)
Regen Low Speed
Comp Gain
Sets a compensation gain to improve the control qualities for
regenerative loads in the low speed range.
100.0%
(50.0 - 200.0%)
994
n4-63
(1B83)
Speed
EstimateRespon
se@High Freq
Sets the responsiveness of the speed estimation in high speed
ranges, where the output frequency is ≥ n4-67 [Estimate Gain
Switchover Freq.
60.0
(0.1 - 150.0)
994
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 - 150.0)
995
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.
0.90
(0.50 - 1.50)
995
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.
0.90
(0.50 - 1.50)
995
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)
995
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)
995
n4-69
(1B89)
Flux Control
Response
Unifies control of magnetic flux to make motor vibrations more
stable.
1.00
(0.00 - 60.00)
996
n4-70
(1B8A)
Speed Command
Comp @ Low Freq
Sets the function to make the drive more stable when operating at
low speeds. Usually it is not necessary to change this setting.
0.60 Hz
(0.00 - 1.50 Hz)
996
n4-72
(1B8C)
Speed Feedback
Mode
Sets the requirement for an encoder option when A1-02 = 4
[Control Method Selection = Advanced Open Loop Vector].
0 : Without Encoder
1 : With Encoder
0
(0, 1)
996
n4-73
(1B8D)
PGo Recovery
Selection
Sets the restart mode to Without Encoder Mode or the With Encoder
Mode when an encoder is disconnected.
0 : Without Encoder
1 : With Encoder
0
(0, 1)
996
n4-74
(1B8E)
Limit of Flux Loop
Sets the control level for flux loop control output.
160%
(100 - 500%)
997
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