|
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.