Parameter List
1
1.12 n: Special Adjustment
YASKAWA TOEPYAIGA5002A GA500 DRIVE PROGRAMMING 91
1.12 n: Special Adjustment
◆ n1: Hunting Prevention
No.
(Hex.)
Name Description
Default
(Range)
n1-01
(0580)
Hunting Prevention
Selection
Sets the function to prevent hunting.
Note:
When you replace a V1000-series drive with a GA500 drive, set n1-01 = 1 [Hunting Prevention
Selection = Enabled].
0 : Disable
1 : Enabled
0
( 0, 1 )
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)
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)
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)
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)
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)
◆ n2: Auto Freq Regulator (AFR)
No.
(Hex.)
Name Description
Default
(Range)
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)
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)
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)
◆ n3: High Slip/Overexcite Braking
No.
(Hex.)
Name Description
Default
(Range)
n3-01
(0588)
Expert
HSB Deceleration
Frequency Width
Sets the amount by which the output frequency is to be lowered during high-slip braking, as a
percentage of E1-04 [Maximum Output Frequency], which represents the 100% value.
5%
(1 - 20%)
n3-02
(0589)
Expert
HSB Current Limit Level
Sets the maximum current output during high-slip braking as a percentage, where E2-01 [Motor
Rated Current (FLA)] is 100%. Also set the current suppression to prevent exceeding drive overload
tolerance.
Note:
The upper limit to the setting range changes when the setting for C6-01 [Normal / Heavy Duty
Selection] changes.
• 150% when C6-01 = 0 [Heavy Duty Rating]
• 120% when C6-01 = 1 [Normal Duty Rating]
Determined by C6-01
(0 - 150%)
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