Delta cF1 fault code meaning

Delta / cF1

Series: AFE2000

Memory write error

active front end

Meaning:

Possible causes

Source: AFE2000 (DELTA_IA-PQ_AFE2000_UM_SC_20110729) P60

Series: C2000 Plus, VP3000

Memory write error

AC motor drive

Meaning: Memory EEPROM data write error

Possible causes

Source: C2000 Plus Series User Manual (DELTA_IA-MDS_C2000 Plus_UM_TC_20250522) P421; VP3000 Series User Manual (DELTA_IA-MDS_VP3000_UM_TC_20250523) P437

Series: C2000-R, CT2000, VFD-DD, VFD-ED

Memory write error

AC motor drive

Meaning:

Possible causes

Source: C2000-R User Manual P217; CT2000 Series User Manual (DELTA_IA-MDS_CT2000_UM_SC_20250522) P247; VFD-DD (Ver. F, S, T & V ) (DELTA_IA-MDS_VFD-DD_UM_TC_20170609) P36; VFD-ED Series User Manual (DELTA_IA-MDS_VFD-ED_UM_SC_20170315) P125

Series: CFP2000, CH2000, CP2000, DPD-K, VP3000-E

Memory write error

AC motor drive

Meaning: Memory EEPROM data write error

Possible causes

Source: CFP2000 Series User Manual (DELTA_IA-MDS_CFP2000_UM_SC_20250731) P283; 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; VP3000-E & VP3000-EHS User Manual (DELTA_IA-MDS_VP3000-E-VP3000-EHS_UM_SC_20260306) P402

Series: HES-C

Memory write error

hydraulic servo drive

Meaning:

Possible causes

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

Series: REG2000

Memory write error

regenerative unit

Meaning:

Possible causes

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

Series: VFD-S

CPU error 1

AC motor drive

Meaning:

Possible causes

Source: Delta VFD-S Instruction Manual P47

Series: VFD-VE, VFD-VL

Memory write error

AC motor drive

Meaning:

Possible causes

Source: Delta VFD-VE Manual P66; Delta VFD-VL Manual P62