Delta OPHL fault code meaning
Delta / OPHL
Series: C2000 Plus, CFP2000, CH2000, CP2000, DPD-K, ME300, MH300-HS, MH300, MP300, MS300, MX300
Output phase loss warning
AC motor drive
Meaning: AC motor drive output phase loss
Possible causes
- Motor three-phase impedance imbalance
- Is there a wiring problem?
- Is the motor a single-phase motor?
- Select a three-phase motor.
- Is current Sensor faulty?
- Is the AC motor drive capacity much greater than the motor capacity?
- Select an AC motor drive and motor with matching capacities.
Source: C2000 Plus Series User Manual (DELTA_IA-MDS_C2000 Plus_UM_TC_20250522) P422; CFP2000 Series User Manual (DELTA_IA-MDS_CFP2000_UM_SC_20250731) P284; CH2000 Series User Manual (DELTA_IA-MDS_CH2000_UM_SC_20251030) P382; CP2000 Series User Manual (DELTA_IA-MDS_CP2000_UM_SC_20250704) P392; DPD-K Series User Manual (DPD-K user manual_20211224) P317; ME300 Series User Manual (DELTA_IA-MDS_ME300_UM_SC_20250407) P182; MH300 Series (High-Speed Models) User Manual (DELTA_IA-MDS_MH300-HS_UM_SC_20241213_v3) P254; MH300 Series User Manual (DELTA_IA-MDS_MH300_UM_TC_20260505) P295; MPD_MP300 Series User Manual (DELTA_IA-MDS_MPD_UM_SC_20260326) P146; MS300 Series User Manual (DELTA_IA-MDS_MS300_UM_TC_20260417_v2) P462; MX300 Series User Manual (DELTA_IA-MDS_MX300_UM_TC_20260226) P189
Series: C2000-R
Output phase U loss
AC motor drive
Meaning:
Possible causes
Source: C2000-R User Manual P218
Series: CT2000
U phase output phase loss
AC motor drive
Meaning:
Possible causes
Source: CT2000 Series User Manual (DELTA_IA-MDS_CT2000_UM_SC_20250522) P382
Series: VP3000-E, VP3000
Output phase U loss warning
AC motor drive
Meaning: AC motor drive output phase U loss
Possible causes
- Motor three-phase impedance imbalance
- Is there a wiring problem?
- Is the motor a single-phase motor?
- Select a three-phase motor.
- Is current Sensor faulty?
- Is the AC motor drive capacity much greater than the motor capacity?
- Select an AC motor drive and motor with matching capacities.
Source: VP3000-E & VP3000-EHS User Manual (DELTA_IA-MDS_VP3000-E-VP3000-EHS_UM_SC_20260306) P400; VP3000 Series User Manual (DELTA_IA-MDS_VP3000_UM_TC_20250523) P435