Detailed operation by function groups
160
Keypad display
Description
Tuning time
Determines flux current by rotating the motor at
1,500 rpm.
30–60 sec
Determines stator inductance by rotating the
motor at 1,500 rpm.
50–60 sec
Determines rotor time constant after
accelerating and decelerating the motor multiple
times. Elapsed time may vary each time it is
performed. Abrupt accelerations and
decelerations are required to find an optimal
rotor time constant. Therefore, a braking resistor
must be connected to the inverter when running
an auto-tuning. Otherwise, overvoltage trip faults
may occur during the tuning process.
20–60 sec
After obtaining the values required, PAR_41 is
automatically changed to “None” to stop auto-
tuning.
Error message will be displayed if correct values
cannot be obtained. If this happens, ensure that
all the motor and encoder parameters were
entered correctly, and then repeat the auto-
tuning procedure.
If an error message persists, stop the auto-
tuning procedure and contact LS ELECTRIC
technical service: www.lselectric.co.kr
Total time
elapsed:
3–5 min