Yaskawa VS-616PS5 Series Programming Manual - Manual (Page 15)

VS-616PS5 Programming Manual 15
B3 Magnetic Pull-in
The magnetic pull-in (Synchronization) feature is used only during the PG orientation
auto-tuning process. During normal operation this function is not performed.
During PG Orientation Auto-Tuning, the following parameters are used to gradually
ramp up the motor current to a desired level to allow a “soft” rotor pole alignment.
Once the magnetic pull-in is completed, the PG Orientation feature is performed.
Setting Range: 0 to 150%
Factory Default: 50%
The current level during initial magnetic pull-in is set in units of 1%.
A setting of 100% generates Motor rated current (E1-04). Increasing this value
increases the motor torque during the pull-in process.
Setting Range: 0.0 to 5.0s
Factory Default: 1.0s.
Sets the rate at which the current is increased during the magnetic pull-in process.
Too short a setting will result in abrupt rotor movement.
B3-02 Magnetic Pull-in Current A
B3-04 Current Ramp-up Time A
Section B: Application Parameters
B3 Magnetic Pull-in