0: No fault
1: Inverter unit phase protection (OUt1)
2: Inverter unit V phase protection (OUt2)
3: Inverter unit W phase protection (OUt3)
4: ACC overcurrent (OC1)
5: DEC overcurrent (OC2)
6: Constant-speed overcurrent (OC3)
7: ACC overvoltage (OV1)
8: DEC overvoltage (OV2)
9: Constant-speed overvoltage (OV3)
10: Bus undervoltage (UV)
11: Motor overload (OL1)
12: VFD overload (OL2)
13: Input side phase loss (SPI)
14: Output side phase loss (SPO)
15: Overheat of the rectifier module (OH1)
16: Overheat fault of the inverter module (OH2)
17: External fault (EF)
18: 485 communication fault (CE)
19: Current detection fault (ItE)
20: Motor autotune fault (tE)
21: EEPROM operation fault (EEP)
22: PID response offline fault (PIDE)
23: Brake unit fault (bCE)
24: Running time arrival (END)
25: Electrical overload (OL3)
26: Panel communication fault (PCE)
27: Parameter uploading fault (UPE)
28: Parameter downloading fault (DNE)