6. Function Description
6-35
5) Auto tuning error message
LCD Display Description and Solution
Displayed when phase loss of A or B occurs and/or error
between reference speed and encoder feedback speed
exceeds motor rated slip. Check whether wiring of
encoder power (PE, GE) and A/B phase is conducted
correctly.
Displayed in case of reverse wiring of phase A/B or U, V,
W. Wire the U, V, W in a correct order or change the
encoder direction setting to “B Phase Lead” in PAR_11.
Displayed when RS value is greater than 5[Ω] or less
than 0.002[Ω]. Check for wiring of inverter and motor
and motor damage. It may occur when motor rating is
much lower than that of inverter.
Displayed when sL is higher than 100[mH]. Check for
wiring of inverter and motor and motor damage.
Displayed when motor rpm exceeds 1650 rpm (1800 rpm
rated motor) during flux current calculation or flux
current is not measured for a long time. Check for wiring
of inverter and motor and number of motor phase.
Displayed when motor rpm exceeds 1650 rpm (1800 rpm
rated motor) during Ls calculation or Ls is not measured
for a long time. Check for wiring of inverter and motor
and number of motor phase.
Displayed when initial set value of PAR_27 is set too high.
Repeat the calculation after lowering 30% to initial
value.
Displayed when initial set value of PAR_27 is set too low.
Repeat the calculation after increasing 30% to initial
value.
PAR▶ Auto tuning
24 Enc Error
PAR▶ Auto tuning
24 Enc AB Chgd
PAR▶ Auto tuning
24 Rs Error
PAR▶ Auto tuning
24 IF Error
PAR▶ Auto tuning
24 Ls Error
PAR▶ Auto tuning
24 PAR 27 DOWN
PAR▶ Auto tuning
24 PAR 27 UP
PAR▶ Auto tuning
24 sL Error
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