11.12 n: Special Adjustment
558 YASKAWA SIEPC71061705H GA700 Series Technical Manual
11.12 n: Special Adjustment
◆ n1: Hunting Prevention
No.
(Hex.)
Name Description
Default
(Range)
Ref.
n1-01
(0580)
Hunting Prevention
Selection
Sets the function to prevent hunting.
0 : Disabled
1 : Enabled (Normal)
2 : Enabled (High Carrier Frequency)
Determined by o2-04
(0 to 2)
918
n1-02
(0581)
Expert
Hunting Prevention Gain
Setting
Sets the performance of the hunting prevention function. Usually it is not necessary to
change this parameter.
1.00
(0.00 - 2.50)
918
n1-03
(0582)
Expert
Hunting Prevention
Time Constant
Sets the primary delay time constant of the hunting prevention function. Usually it is
not necessary to change this parameter.
Determined by o2-04
(0 - 500 ms)
918
n1-05
(0530)
Expert
Hunting Prevent Gain in
Reverse
Sets the performance of the hunting prevention function. This parameter adjusts
Reverse run. Usually it is not necessary to change this parameter.
0.00
(0.00 - 2.50)
918
n1-08
(1105)
Expert
Current Detection
Method
Sets how the drive decreases the motor vibration that is caused by leakage current.
Usually it is not necessary to change this parameter.
0 : 2-Phases
1 : 3-Phases
0
(0, 1)
919
n1-13
(1B59)
Expert
DC Bus Stabilization
Control
Sets the oscillation suppression function for the DC bus voltage.
0 : Disabled
1 : Enabled
0
(0, 1)
919
n1-14
(1B5A)
Expert
DC Bus Stabilization
Time
Adjusts the responsiveness of the oscillation suppression function for the DC bus
voltage. Set n1-13 = 1 [DC Bus Stabilization Control = Enabled] to enable this
parameter.
100.0 ms
(50.0 - 500.0 ms)
919
n1-15
(0BF8)
Expert
PWM Voltage Offset
Calibration
Sets the calibration method that the drive uses to decrease torque/current ripple.
0 : No Calibration
1 : One Time Calibrate at Next Start
2 : Calibrate Every Time at Start
Determined by A1-02
(0 - 2)
919
n1-16
(0BFB)
Hunting Prevention High
Fc Gain
Sets the gain for the hunting prevention function. This parameter functions best with a
high carrier frequency. Usually it is not necessary to change this parameter.
Determined by o2-04
(0.00 - 2.50)
920
n1-17
(0BFC)
Expert
Hunting Prevent High Fc
Filter
Sets the responsiveness of the hunting prevention function. Usually it is not necessary to
change this parameter.
500 ms
(0 - 1000 ms)
920
n1-20
(1588)
Expert
Voltage Calibration
Duration
Sets the calibration time at start. Usually it is not necessary to change this parameter.
50 ms
(10 - 500 ms)
920
◆ n2: Auto Freq Regulator (AFR)
No.
(Hex.)
Name Description
Default
(Range)
Ref.
n2-01
(0584)
Automatic Freq
Regulator Gain
Sets the gain of the AFR function as a magnification value. Usually it is not necessary
to change this setting.
1.00
(0.00 - 10.00)
920
n2-02
(0585)
Automatic Freq
Regulator Time 1
Sets the time constant that sets the rate of change for the AFR function. Usually it is not
necessary to change this setting.
50 ms
(0 - 2000 ms)
920
n2-03
(0586)
Automatic Freq
Regulator Time 2
Sets the time constant that sets the speed difference of the AFR function. Use this
parameter for speed searches or regeneration. Usually it is not necessary to change this
setting.
750 ms
(0 - 2000 ms)
921
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