9.12 n: Special Adjustment
640 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
9.12 n: Special Adjustment
â—† 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)
1
(0, 1)
347
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)
347
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)
347
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)
347
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)
348
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
(0.0 - 500.0 ms)
348
â—† n3: High Slip/Overexcite Braking
No.
(Hex.)
Name Description
Default
(Range)
Ref.
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%)
349
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 sets the current suppression to prevent
exceeding drive overload tolerance.
Determined by L8-38
(0 - 200%)
349
n3-03
(058A)
Expert
HSB Dwell Time at Stop 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.
1.0 s
(0.0 - 10.0 s)
350
n3-04
(058B)
Expert
HSB Overload Time Sets the time used to detect oL7 [High Slip Braking Overload], which occurs when the
output frequency does not change during high-slip braking. Usually it is not necessary to
change this parameter.
40 s
(30 - 1200 s)
350
n3-13
(0531)
OverexcitationBraking
(OEB) Gain
Sets the gain value that the drive multiplies by the V/f pattern output value during
overexcitation deceleration to calculate the overexcitation level.
1.10
(1.00 - 1.40)
350
n3-21
(0579)
HSB Current Suppression
Level
Sets the upper limit of the current that is suppressed at the time of overexcitation
deceleration as a percentage of the drive rated current.
100%
(0 - 150%)
350
n3-23
(057B)
Overexcitation Braking
Operation
Sets the direction of motor rotation where the drive will enable overexcitation.
0 : Disabled
1 : Enabled Only when Rotating FWD
2 : Enabled Only when Rotating REV
0
(0 - 2)
351
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