N2: Auto Freq Regulator (Afr); N3: High Slip/Overexcite Braking - YASKAWA GA800 Programming Manual

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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)
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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
n3-04 HSB Overload Time
(058B)
Expert
n3-13 OverexcitationBraking
(OEB) Gain
(0531)
n3-14 OEB High Frequency
Injection
(0532)
Expert
n3-21 HSB Current Suppression
Level
(0579)
n3-23 Overexcitation Braking
Operation
(057B)
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
Description
V/f CL-V/f OLV CLV AOLV
Sets the gain of the AFR function as a magnification value. Usually it is not necessary to
change this setting.
V/f CL-V/f OLV CLV AOLV
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 CL-V/f OLV CLV AOLV
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 CL-V/f OLV CLV AOLV
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 CL-V/f OLV CLV AOLV
Sets the maximum current output during high-slip braking as a percentage of E2-01 [Motor
Rated Current (FLA)]. Also set the current suppression to prevent exceeding drive
overload tolerance.
Note:
The upper limit of the setting range changes when the setting for C6-01 [Normal /
Heavy Duty Selection] changes.
• 150% when C6-01 = 0 [Heavy Duty Rating 1 (HD1) for Constant Torque
Applications].
• 110% when C6-01 = 1 [Normal Duty Rating 1 (ND1) for Variable Torque
Applications].
V/f CL-V/f OLV CLV AOLV
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.
V/f CL-V/f OLV CLV AOLV
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.
V/f CL-V/f OLV CLV AOLV
Sets the gain value that the drive multiplies by the V/f pattern output value during
overexcitation deceleration to calculate the overexcitation level.
V/f CL-V/f OLV CLV AOLV
Sets the function that injects harmonic signals during overexcitation deceleration.
0 : Disabled
1 : Enabled
V/f CL-V/f OLV CLV AOLV
Sets the upper limit of the current that is suppressed at the time of overexcitation
deceleration as a percentage of the drive rated current.
V/f CL-V/f OLV CLV AOLV
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
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM OLV/PM AOLV/PM CLV/PM EZOLV
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
1.12 n: Special Adjustment
Default
Ref.
(Range)
1.00 486
(0.00 - 10.00)
50 ms 487
(0 - 2000 ms)
750 ms 487
(0 - 2000 ms)
Default
Ref.
(Range)
5% 489
(1 - 20%)
Determined by C6-01, 489
L8-38
(0 - 150%)
1.0 s 489
(0.0 - 10.0 s)
40 s 489
(30 - 1200 s)
1.10 490
(1.00 - 1.40)
0 490
(0, 1)
100% 490
(0 - 150%)
0 490
(0 - 2)
1
93