12.9 n: SPECIAL
686 SIEPCYEUOQ2V01A Q2V Technical Manual
■ n8-35: InitRotorPos Selection
No.
(Hex.)
Name Description
Default
(Range)
n8-35
(0562)
InitRotorPos Selection
Sets how the drive detects the position of the rotor when the motor starts.
Determined by A1-02
(1 - 3)
Note:
• When you use an SPM motor, set n8-35 = 1. When you use an IPM motor, set n8-35 = 1 to 3.
• When you set n8-35 = 2, do High Frequency Injection Auto-Tuning.
• When you set n8-35 = 1 or 3, 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.
1 : Pull-In
Starts the rotor with pull-in current.
2 : HiFreq 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 2, do High Frequency Injection Auto-Tuning.
3 : Pulse Injection
Inputs the pulse signal to the motor to detect the rotor position.
■ n8-36: HFI Signal Frequency
No.
(Hex.)
Name Description
Default
(Range)
n8-36
(0563)
HFI Signal Frequency
Sets the injection frequency for high frequency injection.
500 Hz
(200 - 1000 Hz)
Note:
• Set n8-35 = 2 [InitRotorPos Selection = HiFreq Injection] or n8-57 = 1 [High-Freq Injection = Enabled] to enable this parameter.
• The drive automatically calculates this value when High Frequency Injection Auto-Tuning completes successfully.
■ n8-37: HFI Voltage Amplitude Level
No.
(Hex.)
Name Description
Default
(Range)
n8-37
(0564)
Expert
HFI Voltage Amplitude
Level
Sets the high frequency injection amplitude as a percentage where 200 V = 100% for 200 V class
drives and 400 V = 100% for a 400 V class drives. Usually it is not necessary to change this
setting.
20.0%
(0.0 - 50.0%)
Note:
Set n8-35 = 2 [InitRotorPos Selection = HiFreq Injection] or n8-57 = 1 [High-Freq Injection = Enabled] to enable this parameter.
The drive automatically calculates this value when High Frequency Injection Auto-Tuning completes successfully.
■ n8-39: HFI LPF Cutoff Frq
No.
(Hex.)
Name Description
Default
(Range)
n8-39
(0566)
HFI LPF Cutoff Frq
Sets the low-pass filter shut-off frequency for high frequency injection.
250 Hz
(0 - 1000 Hz)
Note:
• Set n8-35 = 2 [InitRotorPos Selection = HiFreq Injection] or n8-57 = 1 [High-Freq Injection = Enabled] to enable this parameter.
• The drive automatically calculates this value when High Frequency Injection Auto-Tuning completes successfully.
■ n8-41: HFI PoleDet Pgain
No.
(Hex.)
Name Description
Default
(Range)
n8-41
(0568)
Expert
HFI PoleDet Pgain
Sets the response gain for the high frequency injection speed estimation.
2.5
(-10.0 - +10.0)
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