|
No.
(Hex.)
|
Name
|
Description
|
Default
(Range)
|
|
n8-84
(02D3)
Expert
|
Polarity Detection Current
|
        
Sets the current that the drive uses to estimate the initial motor magnetic pole as a percentage where E5-03 [PM Motor Rated Current (FLA)] = 100%.
|
100%
(0 - 150%)
|
Note:
The drive automatically calculates this value when High Frequency Injection Auto-Tuning completes successfully.
| Warning |
|
Sudden Movement Hazard
Make sure that the polarity is correct before you send a Run command.
If the drive incorrectly detects the polarity, the drive can rotate in the direction opposite of the Run command and cause serious injury or death.
|
When you use a Yaskawa motor, check the motor nameplate for an “Si” value and set this parameter ≥ "Si × 2". Consult the motor manufacturer for information about maximum setting values.
Find the Polarity of Magnetic Poles
When you start operation, the drive estimates the magnetic poles and finds the polarity of the magnetic poles. When A1-02 = 7 [Control Method Selection = CLV/PM], the drive finds the polarity of the magnetic poles only at the first startup.
Use U6-57 [PolePolarityDeterVal] to make sure that the drive correctly estimated the polarity of the magnetic poles.
When you do High Frequency Injection Auto-Tuning, the drive automatically sets n8-84.
Note:
If the drive detects dv3, dv4, or LSo, increase the setting value.