Delta oH2 fault code meaning
Delta / oH2
Series: AFE2000
Internal ambient overheat
active front end
Meaning:
Possible causes
Source: AFE2000 (DELTA_IA-PQ_AFE2000_UM_SC_20110729) P60
Series: C2000 Plus, ME300, MH300-HS, MH300, VFD-ED
Power supply capacitor overtemperature
AC motor drive
Meaning:
Possible causes
Source: C2000 Plus Series User Manual (DELTA_IA-MDS_C2000 Plus_UM_TC_20250522) P420; ME300 Series User Manual (DELTA_IA-MDS_ME300_UM_SC_20250407) P393; MH300 Series (High-Speed Models) User Manual (DELTA_IA-MDS_MH300-HS_UM_SC_20241213_v3) P252; MH300 Series User Manual (DELTA_IA-MDS_MH300_UM_TC_20260505) P292; VFD-ED Series User Manual (DELTA_IA-MDS_VFD-ED_UM_SC_20170315) P125
Series: CT2000
Capacitor overheat
AC motor drive
Meaning:
Possible causes
Source: CT2000 Series User Manual (DELTA_IA-MDS_CT2000_UM_SC_20250522) P247
Series: HES-C
Capacitor overheat
hydraulic servo drive
Meaning:
Possible causes
Source: HES-C Technical Manual (DELTA_IA-MDS_VFD-HES_UM_TC_20250715) P100
Series: REG2000
Internal ambient overheat
regenerative unit
Meaning:
Possible causes
Source: REG2000 Series User Manual (DELTA_IA-MDS_REG2000_UM_SC_20251117) P126
Series: VFD-E
AC motor drive internal overheat
AC motor drive
Meaning:
Possible causes
Source: Delta VFD-E Manual P52
Series: VFD-VE
Heatsink overheat at 40HP or above
AC motor drive
Meaning:
Possible causes
Source: Delta VFD-VE Manual P65
Series: VFD-VL
Heatsink overheat 40HP above
AC motor drive
Meaning:
Possible causes
Source: Delta VFD-VL Manual P61