
No. SX-DSV02310 - 39 -
R2.0 Motor
Business
Division,
Appliances Company, Panasonic Corporation
4-3-3-3 Servo-on in case of magnetic pole position estimation method
In case of Pr9.20 (Selection of magnetic pole detection method) is 2 (magnetic pole position estimation method),
vibration may occur because command position is valid when magnetic pole position estimation is completed during
CP control. There are two possible measures for this.
Using CMD-POS_Invalid bit to make command position invalid during magnetic pole position estimation.
Making command position follow during magnetic pole position estimation.
For this reason, method of servo-on at the time of magnetic pole position estimation is either one of below.
When set value of Bit0 of Pr7.40 (RTEX function expansion setting 4) is 0, 1 is returned to Servo_Active Bit of
RTEX status at first servo-on after power is turned on.
When set value of Bit0 of Pr7.40 (RTEX function expansion setting 4) is 1, 1 is returned to Servo_Active Bit of
RTEX status after completing magnetic pole position estimation.
(For details, see 7-1-2.)
And in case of Pr7.24 (
RTEX function extended setup 3
)bit4 = 1, Servo_Active returns a servo-off state compulsorily until a
current offset setup is completed.
2.0
2.0