Delta CE1 fault code meaning

Delta / CE1

Series: AFE3000

Communication error

active front end

Meaning: Invalid communication command

Possible causes

The communication command sent by the host computer is incorrect.
Malfunction due to interference

Source: AFE3000 Series User Manual (DELTA_IA-PQ_AFE3000_UM_TC_20260330) P61

Series: C2000 Plus, CFP2000, CH2000, CP2000, DPD-K, MH300-HS, MH300, MP300, MS300, MX300

Communication error

AC motor drive

Meaning: RS-485 Modbus, illegal communication command

Possible causes

The communication command sent by the host computer is incorrect.
Malfunction due to interference
The communication settings differ from those of the host device.
Communication cable open or poor contact

Source: C2000 Plus Series User Manual (DELTA_IA-MDS_C2000 Plus_UM_TC_20250522) P387; CFP2000 Series User Manual (DELTA_IA-MDS_CFP2000_UM_SC_20250731) P255; CH2000 Series User Manual (DELTA_IA-MDS_CH2000_UM_SC_20251030) P349; CP2000 Series User Manual (DELTA_IA-MDS_CP2000_UM_SC_20250704) P360; DPD-K Series User Manual (DPD-K user manual_20211224) P290; 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) P183; MPD_MP300 Series User Manual (DELTA_IA-MDS_MPD_UM_SC_20260326) P145; MS300 Series User Manual (DELTA_IA-MDS_MS300_UM_TC_20260417_v2) P156; MX300 Series User Manual (DELTA_IA-MDS_MX300_UM_TC_20260226) P138

Series: C2000-R, CT2000

Invalid communication command

AC motor drive

Meaning:

Possible causes

Source: C2000-R User Manual P218; CT2000 Series User Manual (DELTA_IA-MDS_CT2000_UM_SC_20250522) P248

Series: ME300

Invalid communication command

AC motor drive

Meaning: Invalid communication command

Possible causes

The communication command sent by the host computer is incorrect.
Malfunction due to interference
The communication settings differ from those of the host device.
Communication cable open or poor contact

Source: ME300 Series User Manual (DELTA_IA-MDS_ME300_UM_SC_20250407) P129

Series: MS300-HS, VFD-VE, VFD-VL

Communication error

AC motor drive

Meaning:

Possible causes

Source: MS300 (high-speed model) (DELTA_IA-MDS_VFD MS300_high_UM_TC_20170306) P141; Delta VFD-VE Manual P66; Delta VFD-VL Manual P62