Delta Hd6 fault code meaning
Delta / Hd6
Series: ME300, MH300-HS, MH300, MS300, MX300
oc hardware circuit error
AC motor drive
Meaning: At power-on, an error occurs in the AC motor drive's GFF hardware protection circuit
Possible causes
- Hardware fault
Source: ME300 Series User Manual (DELTA_IA-MDS_ME300_UM_SC_20250407) P181; MH300 Series (High-Speed Models) User Manual (DELTA_IA-MDS_MH300-HS_UM_SC_20241213_v3) P253; MH300 Series User Manual (DELTA_IA-MDS_MH300_UM_TC_20260505) P294; MS300 Series User Manual (DELTA_IA-MDS_MS300_UM_TC_20260417_v2) P247; MX300 Series User Manual (DELTA_IA-MDS_MX300_UM_TC_20260226) P139
Series: MP300
GFF hardware circuit error
AC motor drive
Meaning: A ground fault is detected during the power-on check.
Possible causes
- Motor cable too long
- Motor cable error or open circuit
- Hardware fault
- AC motor drive current feedback circuit error
Source: MPD_MP300 Series User Manual (DELTA_IA-MDS_MPD_UM_SC_20260326) P145
Series: MS300-HS
GFF detected at power-on
AC motor drive
Meaning:
Possible causes
Source: MS300 (High-speed model) (DELTA_IA-MDS_VFD MS300_high_UM_TC_20170306) P142