4. Trial Operation
4-9
4.5.3 Standstill auto tuning
1) Precaution
Be sure to lock the motor shaft using magnetic brake.
2) StandStill Type Auto-tuning procedure
LCD Display Description Tuning Time
Set the auto-tuning type to “Standstill”. -
Auto-tuning starts if ALL1 is set. -
Stator resistance (R
s
) is measured
without rotating the motor.
20-30 Sec
The leakage inductance (sL) of the
motor is measured without rotating the
motor.
90-150 Sec
Flux current (IF), rotor time constant (T
r
)
and stator self-inductance (Ls) is
measured simultaneously without
rotating the motor.
40-70 Sec
When auto-tuning is complete
successfully, “None” is displayed. If error
occurs during auto-tuning, “[][] Error” is
displayed. In this case, verify motor
parameters and encoder setting is done
properly and redo the auto-tuning. If the
problem persists, contact LS
representative.
Total: 3-5
minutes
z FWD/REV LED on keypad will blink during Auto-tuning.
z Motor constants of each can be selected and separately tuned.
(Rs Tuning, Lsigma, Flux Curr, Ls Tuning, Tr Tuning)
PAR▶ AutoTuneType
23 Standstill
PAR▶ Auto tuning
24 ALL1
PAR▶ Auto tuning
24 Rs Tuning
PAR▶ Auto tuning
24 sL Tuning
PAR▶ Auto tuning
24 If/Tr/Ls Tuning
PAR▶ Auto tuning
24 None
PAR▶ Auto tuning
24 [][] Error