N: Special Adjustment; N1: Hunting Prevention; N2: Auto Freq Regulator (Afr); N3: High Slip/Overexcite Braking - YASKAWA GA500 GA50U Series Programming Manual

1.12

n: Special Adjustment

◆

n1: Hunting Prevention

No.
Name
(Hex.)
n1-01 Hunting Prevention
Selection
(0580)
n1-02 Hunting Prevention Gain
Setting
(0581)
Expert
n1-03 Hunting Prevention Time
Constant
(0582)
Expert
n1-05 Hunting Prevent Gain in
Reverse
(0530)
Expert
n1-13 DC Bus Stabilization
Control
(1B59)
Expert
n1-14 DC Bus Stabilization Time
(1B5A)
Expert
◆

n2: Auto Freq Regulator (AFR)

No.
Name
(Hex.)
n2-01 Automatic Freq Regulator
Gain
(0584)
n2-02 Automatic Freq Regulator
Time 1
(0585)
n2-03 Automatic Freq Regulator
Time 2
(0586)
◆

n3: High Slip/Overexcite Braking

No.
Name
(Hex.)
n3-01 HSB Deceleration
Frequency Width
(0588)
Expert
n3-02 HSB Current Limit Level
(0589)
Expert
YASKAWA TOEPYAIGA5002A GA500 DRIVE PROGRAMMING
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
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
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the performance of the hunting prevention function. Usually it is not necessary to change this
parameter.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the primary delay time constant of the hunting prevention function. Usually it is not necessary to
change this parameter.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the performance of the hunting prevention function. This parameter adjusts Reverse run. Usually
it is not necessary to change this parameter.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the oscillation suppression function for the DC bus voltage.
0 : Disabled
1 : Enabled
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
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.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
Sets the gain of the AFR function as a magnification value. Usually it is not necessary to change this
setting.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the time constant that sets the rate of change for the AFR function. Usually it is not necessary to
change this setting.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
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.
V/f OLV OLV/PM OLV/PM AOLV/PM EZOLV
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.
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
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]
Description
Description
Description

1.12 n: Special Adjustment

Default
(Range)
0
( 0, 1 )
1.00
(0.00 - 2.50)
Determined by o2-04
(0 - 500 ms)
0.00
(0.00 - 2.50)
0
(0, 1)
100.0 ms
(50.0 - 500.0 ms)
Default
(Range)
1.00
(0.00 - 10.00)
50 ms
(0 - 2000 ms)
750 ms
(0 - 2000 ms)
Default
(Range)
5%
(1 - 20%)
Determined by C6-01
(0 - 150%)
1
91