0: no fault
1: ACC overcurrent (E.oC1)
2: DEC overcurrent (E.oC2)
3: constant speed
overcurrent (E.oC3)
4: ACC overvoltage (E.oU1)
5: DEC overvoltage (E.oU2)
6: constant speed
overvoltage (E.oU3)
7: bus undervoltage fault
(E.Lv)
8: inverter unit U phase
protection (E.oUT1)
9: inverter unit V phase
protection (E.oUT2)
10: inverter unit W phase
protection (E.oUT3)
11: motor overload (E.oL1)
12: inverter overload (E.oL2)
13: overload pre-warning
fault (E.oL3)
14: radiator 1 overheating
(E.oH1)
15: radiator 2 overheating
(E.oH2)
16: input side phase loss
(E.ILF)
17: output side phase loss
(E.oLF)
18: braking unit fault (E.bC)
19: autotuning fault (E.AUT)
20: PID disconnection fault
(E.PIDE)
21: communication failure
(E.485)
22: external fault (E.EF)
23: EEPROM operation
failure (E.EPR)
24: run time arrival (E.ENd)
25: current detection fault
(E.ITE)