12.10 n: Special Adjustment
1026 YASKAWA SIEPC71061737D GA800 Drive Technical Reference
■ n8-26: ACR d Gain @PoleEst
No.
(Hex.)
Name Description
Default
(Range)
n8-26
(0559)
Expert
ACR d Gain @PoleEst
Sets the proportional gain for current regulator d-axis control when the drive estimates the initial
pole. Usually it is not necessary to change this setting.
500
(0 - 2000)
■ n8-27: ACR d Integral Time @PoleEst
No.
(Hex.)
Name Description
Default
(Range)
n8-27
(055A)
Expert
ACR d Integral Time
@PoleEst
Sets the integral time for current regulator d-axis control when the drive estimates the initial pole.
Usually it is not necessary to change this setting.
0.0 ms
(0.0 - 100.0 ms)
■ n8-28: ACR d Lim @PoleEst
No.
(Hex.)
Name Description
Default
(Range)
n8-28
(055B)
Expert
ACR d Lim @PoleEst
Sets the d-axis limit of the current regulator when the drive estimates the initial pole. Usually it is not
necessary to change this setting.
100%
(0 - 150%)
■ n8-35: Initial Pole Detection Method
No.
(Hex.)
Name Description
Default
(Range)
n8-35
(0562)
Initial Pole Detection
Method
Sets how the drive detects the position of the rotor at start.
Determined by A1-02
(0 - 2)
When you set A1-02 = 7 [Control Method Selection = CLV/PM], the initial motor magnetic pole detection operates
the first time after you energize the drive. After the first time, the drive uses the encoder signal to calculate the rotor
position and the drive saves the value until you de-energize the drive. If you use an absolute value encoder, the initial
motor magnetic pole detection will not operate.
Note:
• When you use an SPM motor, set n8-35 = 0. When you use an IPM motor, set n8-35 = 0 to 2.
• When you set n8-35 = 1, do High Frequency Injection Auto-Tuning.
• When you set n8-35 = 0 or 2, always evaluate the drive with the equipment being used for the application. If the drive incorrectly detects
the polarity, the motor can rotate in the direction opposite of the Run command.
0 : Pull-in
Starts the rotor with pull-in current.
1 : High Frequency Injection
Injects high frequency to detect the rotor position. This setting can cause a loud excitation sound when the motor
starts.
Note:
When you set 1, do High Frequency Injection Auto-Tuning.
2 : Pulse Injection
Inputs the pulse signal to the motor to detect the rotor position.
■ n8-36: HFI Frequency Level for L Tuning
No.
(Hex.)
Name Description
Default
(Range)
n8-36
(0563)
HFI Frequency Level for L
Tuning
Sets the injection frequency for high frequency injection.
500 Hz
(200 - 1000 Hz)
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