Parameter Details
2
2.10 n: Special Adjustment
YASKAWA TOEPYAIGA8002B GA800 Drive Programming 499
■ n7-11: Pull-in Current Switch Hysteresis Band
No.
(Hex.)
Name Description
Default
(Range)
n7-11
(311B)
Expert
Pull-in Current Switch
Hysteresis Band
Sets the hysteresis level for Switching Speed set in n7-10 [Pull-in Current Switching Speed]. When
the speed is lower than n7-10 + n7-11 during acceleration, the drive enables pull-in current.
5.0%
(1.0 - 20.0%)
Note:
• The value set in n8-51 [Pull-in Current @ Acceleration] is enabled for speeds that are not higher than n7-10 + n7-11 during acceleration.
The value set in b8-01 [Energy Saving Control Selection] is enabled for speeds higher than n7-10 + n7-11.
• If there is a large quantity of oscillation when you operate in the low speed range, increase the setting value.
• When it is most important to save energy in the low speed range, decrease the setting value.
■ n7-13: Pull-in Current Switching Time
No.
(Hex.)
Name Description
Default
(Range)
n7-13
(311D)
Expert
Pull-in Current Switching
Time
Sets a time to enable the pull-in current commands.
100 ms
(0 - 1000 ms)
■ n7-17: Resistance TemperatureCorrection
No.
(Hex.)
Name Description
Default
(Range)
n7-17
(3122)
Resistance
TemperatureCorrection
Sets the function to adjust for changes in the motor resistance value caused by changes in the
temperature.
1
(0 to 2)
0 : Invalid
1 : Valid (Only 1 time)
2 : Valid (Every time)
Note:
• For settings 1 and 2, the adjustment time can cause a delay before startup.
• For settings 1 and 2, the drive can set the line-to-line resistance value of E9-10 [Motor Line-to-Line Resistance].
• When the temperature will change at startup, use setting 2.
• To decrease the startup time, set this parameter to 0, then do line-to-line resistance tuning.
• If you will start from coasting, set this parameter to 0, then do line-to-line resistance tuning.
◆ n8: PM Motor Control Tuning
n8 parameters are used to make adjustments when controlling PM motors.
■ n8-01: Pole Position Detection Current
No.
(Hex.)
Name Description
Default
(Range)
n8-01
(0540)
Pole Position Detection
Current
Sets, as a percentage, the Initial Rotor Position Estimated Current, taking the E5-03 [Motor Rated
Current (FLA)] as the 100% value. Usually it is not necessary to change this setting.
50%
(0 - 100%)
The drive uses the Initial Rotor Position Estimated Current to detect the initial position of rotors.
Use the "Si" value on the motor nameplate, if available.
Note:
When A1-02 = 7 [CLV/PM], this parameter takes effect only in Expert Mode.
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