N3: Overexcitation Deceleration; N4: Adv Open Loop Vector Tune - YASKAWA CR700 Technical Manual

10.12 n: Special Adjustment

n3: Overexcitation Deceleration

◆
No.
Name
(Hex.)
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)

n4: Adv Open Loop Vector Tune

◆
No.
Name
(Hex.)
n4-60 Motoring Low Speed
Comp Gain
(1B80)
n4-61 Low Speed Comp
Frequency Level
(1B81)
n4-62 Regen Low Speed Comp
Gain
(1B82)
n4-63 Speed
EstimateResponse@
(1B83)
High Freq
n4-64 Speed Estimate
Response@Low Freq
(1B84)
n4-65 Flux Estimate
Response@High Freq
(1B85)
n4-66 Flux Estimate Response
@Low Freq
(1B86)
n4-67 Estimate Gain
Switchover Freq
(1B87)
n4-68 Speed Estimation Filter
Time
(1B88)
n4-69 Flux Control Response
(1B89)
n4-70 Speed Command Comp
@ Low Freq
(1B8A)
n4-71 Flux Estimation Method
(1B8B)
Expert
522
Description
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
Description
V/f CL-V/f OLV CLV AOLV
Sets a compensation gain to improve the control qualities for motoring loads in the low
speed range.
V/f CL-V/f OLV CLV AOLV
Sets a frequency at which the settings n4-60 [Motoring Low Speed Comp Gain] and n4-
62 [Regen Low Speed Comp Gain] are enabled. When the output frequency < n4-61, the
drive adjusts the torque to agree with the settings for n4-60 and n4-62. Usually it is not
necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Sets a compensation gain to improve the control qualities for regenerative loads in the
low speed range.
V/f CL-V/f OLV CLV AOLV
In high speed ranges, where the output frequency is ≥ n4-67 [SwitchingFreq
forEstimation gain], this adjusts the responsiveness of the speed estimation.
V/f CL-V/f OLV CLV AOLV
In low speed ranges, where 0 ≤ the output frequency, which is < n4-67 [SwitchingFreq
forEstimation gain], this adjusts the responsiveness of the speed estimation.
V/f CL-V/f OLV CLV AOLV
In high speed ranges, where the output frequency is ≥ n4-67 [SwitchingFreq
forEstimation gain], this adjusts the responsiveness of the magnetic flux estimation.
Usually it is not necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Sets the responsiveness of the magnetic flux estimation in low speed ranges, where 0 ≤
the output frequency, which is < n4-67 [Estimate Gain Switchover Freq]. Usually it is
not necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Set the switching frequency for estimation gain for each of the following: n4-63
[SpdEstimationResponseForHighFreq], n4-64 [SpdEstimationResponse forLowFreq],
n4-65 [FluxEstimationResponseForHighFrq], and n4-66
[FluxEstimationResponseForLowFreq]. Usually it is not necessary to change this
setting.
V/f CL-V/f OLV CLV AOLV
Sets the primary delay time constant for the speed estimation value. Usually it is not
necessary to change this setting.
V/f CL-V/f OLV CLV AOLV
Unifies control of magnetic flux to make motor vibrations more stable.
V/f CL-V/f OLV CLV AOLV
Sets the function to make the drive more stable when it operates at low speeds. Usually
it is not necessary to change this parameter.
V/f CL-V/f OLV CLV AOLV
Sets the flux estimation method. Usually it is not necessary to change this setting.
0 : Method 1
1 : Method 2
YASKAWA SIEPC71061723A YASKAWA AC Drive CR700 Technical Manual
Default
Ref.
(Range)
1.10 773
(1.00 - 1.40)
0 773
(0, 1)
100% 773
(0 - 150%)
0 774
(0 - 2)
Default
Ref.
(Range)
100.0% 774
(50.0 - 200.0%)
6.00 Hz 774
(0.50 - 12.00 Hz)
100.0 % 774
(50.0 - 500.0%)
60.0 775
(0.1 - 300.0)
60.0 775
(0.1 - 300.0)
1.00 775
(0.50 - 3.00)
1.50 775
(0.50 - 3.00)
6.00 Hz 775
(0.00 - E1-04)
0.001 s 776
(0.001 - 0.010 s)
1.00 776
(0.00 - 60.00)
1.00 Hz 776
(0.00 - 6.00 Hz)
0 776
(0, 1)