Delta Hd1 fault code meaning

Delta / Hd1

Series: C2000 Plus, CFP2000, CH2000, CP2000, DPD-K, 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 oc hardware protection circuit.

Possible causes

Source: C2000 Plus Series User Manual (DELTA_IA-MDS_C2000 Plus_UM_TC_20250522) P421; CFP2000 Series User Manual (DELTA_IA-MDS_CFP2000_UM_SC_20250731) P284; CH2000 Series User Manual (DELTA_IA-MDS_CH2000_UM_SC_20251030) P381; CP2000 Series User Manual (DELTA_IA-MDS_CP2000_UM_SC_20250704) P392; DPD-K Series User Manual (DPD-K user manual_20211224) P316; ME300 Series User Manual (DELTA_IA-MDS_ME300_UM_SC_20250407) P180; 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; MS300 Series User Manual (DELTA_IA-MDS_MS300_UM_TC_20260417_v2) P246; MX300 Series User Manual (DELTA_IA-MDS_MX300_UM_TC_20260226) P138

Series: C2000-R

oc hardware circuit error

AC motor drive

Meaning:

Possible causes

Source: C2000-R User Manual P218

Series: CT2000

oc Current detection error

AC motor drive

Meaning:

Possible causes

Source: CT2000 Series User Manual (DELTA_IA-MDS_CT2000_UM_SC_20250522) P382

Series: HES-C

oc overcurrent error

hydraulic servo drive

Meaning:

Possible causes

Source: HES-C Technical Manual (DELTA_IA-MDS_VFD-HES_UM_TC_20250715) P100

Series: MP300

oc hardware circuit error

AC motor drive

Meaning: At power-on, an error is detected in the AC motor drive's oc hardware protection circuit.

Possible causes

Source: MPD_MP300 Series User Manual (DELTA_IA-MDS_MPD_UM_SC_20260326) P145

Series: REG2000

Current detection error at power-on

regenerative unit

Meaning:

Possible causes

Source: REG2000 Series User Manual (DELTA_IA-MDS_REG2000_UM_SC_20251117) P92

Series: VP3000-E, VP3000

occ hardware circuit error

AC motor drive

Meaning: At power-on, an error occurs in the AC motor drive's oc hardware protection circuit.

Possible causes

Source: VP3000-E & VP3000-EHS User Manual (DELTA_IA-MDS_VP3000-E-VP3000-EHS_UM_SC_20260306) P530; VP3000 Series User Manual (DELTA_IA-MDS_VP3000_UM_TC_20250523) P566