11.12 N: Special Adjustment; N1: Hunting Prevention; N2: Auto Freq Regulator (Afr); N3: High Slip/Overexcite Braking - YASKAWA CIPR-GA50C series Technical Manual

11.12 n: Special Adjustment

11.12 n: Special Adjustment

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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
n3-03 HSB Dwell Time at Stop
(058A)
Expert
396
Description
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 AOLV/PM EZOLV OLV/PM
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 AOLV/PM EZOLV OLV/PM
Sets the oscillation suppression function for the DC bus voltage.
0 : Disabled
1 : Enabled
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
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.
Description
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 OLV/PM AOLV/PM EZOLV
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.
Description
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 OLV/PM AOLV/PM EZOLV
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]
V/f OLV OLV/PM AOLV/PM EZOLV OLV/PM
Sets the dwell time, a length of time when high-slip braking is ending and during which
the motor speed decreases and runs at a stable speed. For a set length of time, the drive
will hold the actual output frequency at the minimum output frequency set in E1-09.
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
and L8-38
(0 - 150%)
1.0 s
(0.0 - 10.0 s)
YASKAWA SIEPC71061753A GA500 Technical Manual
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