3.12 n: Special Adjustment
156 YASKAWA TOEPYAIGA5001A GA500 DRIVE MAINTENANCE & TROUBLESHOOTING
No.
(Hex.)
Name Description
Default
(Range)
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)
n3-14
(0532)
Expert
OEB High Frequency
Injection
Sets the function that injects harmonic signals during overexcitation deceleration.
0 : Disabled
1 : Enabled
0
(0, 1)
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%)
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)
◆ n5: Feed Forward Control
No.
(Hex.)
Name Description
Default
(Range)
n5-01
(05B0)
Feed Forward Control
Selection
Sets the feed forward function.
0 : Disabled
1 : Enabled
0
(0, 1)
n5-02
(05B1)
Motor Inertia Acceleration
Time
Sets the length of time for the motor to accelerate from the stopped to the maximum frequency with a
single motor at the rated torque. Inertia Tuning automatically sets the motor acceleration time.
Determined by C6-01, E5-
01, and o2-04
(0.001 - 10.000 s)
n5-03
(05B2)
Feed Forward Control Gain Sets the ratio between load inertia and motor inertia. Inertia Tuning automatically sets the
Feedforward Control Gain value.
1.00
(0.00 - 100.00)
n5-04
(05B3)
RUN
Expert
Speed Response Frequency Sets the response frequency for the speed reference. Usually it is not necessary to change this
parameter.
Determined by A1-02
(0.00 - 500.00 Hz)
◆ n6: Online Tuning
No.
(Hex.)
Name Description
Default
(Range)
n6-01
(0570)
Online Tuning Selection Sets the type of motor data that Online Tuning uses for OLV control.
0 : Disabled
1 : Line-to-Line Resistance Tuning
2 : Voltage Correction Tuning
0
(0 - 2)
n6-05
(05C7)
Expert
Online Tuning Gain Sets the compensation gain when n6-01 = 2 [Online Tuning Selection = Voltage Correction Tuning].
Usually it is not necessary to change this parameter.
1.0
(0.1 - 50.0)
◆ n7: EZ Drive
No.
(Hex.)
Name Description
Default
(Range)
n7-01
(3111)
Expert
Damping Gain for Low
Frequency
Sets the oscillation suppression gain for the low speed range. 1.0
(0.1 - 10.0)
n7-05
(3115)
Expert
Response Gain for Load
Changes
Sets the response gain related to changes in the load. 50
(10 - 1000)
n7-07
(3117)
Expert
Speed Calculation Gain1 Sets the speed calculation gain during usual operation. Usually it is not necessary to change this
setting.
15.0
(1.0 - 50.0)
n7-08
(3118)
Expert
Speed Calculation Gain2 Sets the speed calculation gain during a speed search. 25.0
(1.0 - 50.0)
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