Parameter Details
2
2.10 n: Special Adjustment
YASKAWA TOEPYAIGA8002B GA800 Drive Programming 507
■ n8-64: Output Voltage Limit I Time
No.
(Hex.)
Name Description
Default
(Range)
n8-64
(057F)
Expert
Output Voltage Limit I Time
Sets the integral time for output voltage control. Usually it is not necessary to change this setting.
0.040 s
(0.000 - 5.000 s)
■ n8-65: Speed Fdbk Gain @ oV Suppression
No.
(Hex.)
Name Description
Default
(Range)
n8-65
(065C)
Expert
Speed Fdbk Gain @ oV
Suppression
Sets the gain of internal speed feedback detection suppression while the overvoltage suppression
function is operating as a magnification value. Usually it is not necessary to change this parameter.
1.50
(0.00 - 10.00)
Adjust this parameter in these conditions:
• If there is resonance or hunting when you use the overvoltage suppression function, increase the setting value.
• If motor response is low when you use the overvoltage suppression function, decrease the setting value in 0.05-unit
increments.
■ n8-66: Output Voltage Limit Filter Time
No.
(Hex.)
Name Description
Default
(Range)
n8-66
(0235)
Expert
Output Voltage Limit Filter
Time
Sets the filter time constant for output voltage control. Usually it is not necessary to change this
setting.
0.020 s
(0.000 - 5.000 s)
■ n8-69: Speed Observer Control P Gain
No.
(Hex.)
Name Description
Default
(Range)
n8-69
(065D)
Expert
Speed Observer Control P
Gain
Sets the gain that the drive uses for speed estimation. Usually it is not necessary to change this
setting.
1.00
(0.00 - 20.00)
■ n8-70: Speed Observer Control I Time
No.
(Hex.)
Name Description
Default
(Range)
n8-70
(065E)
Expert
Speed Observer Control I
Time
Sets the speed estimator integral time constant. It is available when n8-72 = 1 [Speed Estimation
Method Select = Method 2]. Usually it is not necessary to change this setting.
0.0 s
(0.0 - 100.0 s)
■ n8-71: Speed Observer Control D Gain
No.
(Hex.)
Name Description
Default
(Range)
n8-71
(065F)
Expert
Speed Observer Control D
Gain
Set the speed estimator differential gain. It is available when n8-72 = 1 [Speed Estimation Method
Select = Method 2]. Usually it is not necessary to change this setting.
5.00
(0.00 - 50.00)
■ n8-72: Speed Estimation Method Select
No.
(Hex.)
Name Description
Default
(Range)
n8-72
(0655)
Expert
Speed Estimation Method
Select
Selects the speed estimation method. Usually it is not necessary to change this setting.
1
(0, 1)
0 : Method 1
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