E171: usual synchronous position error. To prevent such problem as door zone not detected because of non-corresponding synchronous position by rotary encoder
E32: INV U-phase IGBT Error( 180-420m/min). When U-phase +IGBT and -IGBT are turned on simultaneously, or when IGBT driving
power has failed or INV output(U, V, W) is short
E53: INV Charge Error