14: Phase loss on output side (SPO)
15: Boost module overheat (OH1)
16: Inverter module overheat (OH2)
17: External fault (EF)
18: RS485 communication fault (CE)
19: Current detection fault (ItE)
20: Motor autotuning fault (tE)
21: EEPROM operation error (EEP)
22–23: Reserved
24: Running time reached (END)
25: Electronic overload (OL3)
26–31: Reserved
32: To-ground short-circuit fault 1
(ETH1)
33: To-ground short-circuit fault 2
(ETH2)
34: Speed deviation fault (dEu)
35: Mal-adjustment fault (STo)
36: Underload fault (LL)
37: Hydraulic probe damage (tSF)
38: PV reverse connection fault (PINV)
39: PV overcurrent (PVOC)
40: PV overvoltage (PVOV)
41: PV undervoltage (PVLV)
42: Fault on 422 communication with the
boost module (E-422)
43: Bus overvoltage detected on the
boost side (OV)
Note: Faults 38–40 are only detected in
boost. The boost module stops working
immediately after detecting a fault, while
returning the fault information to the
inverter module in the next data
returning.
Alarms:
60: Light-weak pre-alarm (A-LS)
61: Underload pre-alarm (A-LL)