N6: Online Tuning - YASKAWA GA800 Technical Reference

• t
= Acceleration time (s)
accel
• f = Motor rated frequency (Hz)
rated
• T
= Test run torque limit (%)
Lim_Test
• f
= Test run frequency reference (Hz)
ref_Test
WARNING! Sudden Movement Hazard. Machinery can accelerate suddenly. Do not use this function with machinery that must not
accelerate suddenly. Sudden starts can cause serious injury or death.
Reset all of the parameters that you changed to the previous setting values.
Note:
• If response to the speed reference is slow, increase the value set in n5-03.
• Increase the value set in n5-03 when response to the speed reference is slow.
–The speed is overshooting.
–A negative torque reference is output when acceleration ends.
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n5-04: Speed Response Frequency
No.
Name
(Hex.)
n5-04 Speed Response Frequency
(05B3)
RUN
Expert
If you set n5-03 [Feed Forward Control Gain] too high, the motor speed will momentarily increase to more than the
set frequency.
◆

n6: Online Tuning

n6 parameters are used to set the online tuning function for motor line-to-line resistance.
The Online Tuning for motor line-to-line resistance is used to prevent degradation of speed control accuracy due to
motor temperature fluctuation and motor stalls due to insufficient torque.
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n6-01: Online Tuning Selection
No.
Name
(Hex.)
n6-01 Online Tuning Selection
(0570)
0 : Disabled
1 : Line-to-Line Resistance Tuning
The drive adjusts the motor line-to-line resistance during run. This procedure is applicable for speed values 6 Hz and
less. It also adjusts the motor resistance value to increase the overload capacity in the low speed range.
2 : Voltage Correction Tuning
The drive adjusts the output voltage during run to increase overload tolerance and minimize the effects of high
temperatures on speed precision.
Note:
Setting 2 is enabled only when b8-01 = 0 [Energy Saving Control Selection = Disabled].
■
n6-05: Online Tuning Gain
No.
Name
(Hex.)
n6-05 Online Tuning Gain
(05C7)
Expert
YASKAWA SIEPC71061737D GA800 Drive Technical Reference
V/f CL-V/f OLV CLV AOLV
Sets the response frequency for the speed reference. Usually it is not necessary to change this
parameter.
V/f CL-V/f OLV CLV AOLV
Sets the type of motor data that Online Tuning uses for OLV control.
V/f CL-V/f OLV CLV AOLV
Sets the compensation gain when n6-01 = 2 [Online Tuning Selection = Voltage Correction Tuning].
Usually it is not necessary to change this parameter.
12.10 n: Special Adjustment
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Description
OLV/PM AOLV/PM CLV/PM EZOLV OLV/PM
Default
(Range)
Determined by A1-02
(0.00 - 500.00 Hz)
Default
(Range)
0
(0 - 2)
Default
(Range)
1.0
(0.1 - 50.0)
12
1021