Delta ovA fault code meaning
Delta / ovA
Series: C2000-R, CT2000, MS300-HS, VFD-DD, VFD-ED, VFD-VL
Overvoltage during acceleration
AC motor drive
Meaning:
Possible causes
Source: C2000-R User Manual P217; CT2000 Series User Manual (DELTA_IA-MDS_CT2000_UM_SC_20250522) P247; MS300 (High-speed Models) (DELTA_IA-MDS_VFD MS300_high_UM_TC_20170306) P141; VFD-DD (Ver. F, S, T & V) (DELTA_IA-MDS_VFD-DD_UM_TC_20170609) P35; VFD-ED Series User Manual (DELTA_IA-MDS_VFD-ED_UM_SC_20170315) P124; Delta VFD-VL Manual P61
Series: HES-C
Overvoltage during acceleration
hydraulic servo drive
Meaning:
Possible causes
Source: HES-C Technical Manual (DELTA_IA-MDS_VFD-HES_UM_TC_20250715) P100
Series: MX300
Overvoltage during acceleration
AC motor drive
Meaning: During acceleration, the AC motor drive detects overvoltage on the internal high-voltage DC side. When ovA occurs, the AC motor drive output is immediately disabled, the motor coasts, and the panel displays the ovA error.
Possible causes
- Is acceleration too slow?
- (For example, during downward acceleration of a lifting load)
- Check whether the stall prevention action condition setting is less than
- No-load current
- The stall prevention action condition setting should be greater than the no-load current.
- Supply voltage too high
- Acceleration time too short
Source: MX300 Series User Manual (DELTA_IA-MDS_MX300_UM_TC_20260226) P137