Delta S24O fault code meaning
Delta / S24O
Series: VP3000-E, VP3000
STO power supply 24V too high
AC motor drive
Meaning: STO power supply 24V too high
Possible causes
- Control board fault
Source: VP3000-E & VP3000-EHS User Manual (DELTA_IA-MDS_VP3000-E-VP3000-EHS_UM_SC_20260306) P403; VP3000 Series User Manual (DELTA_IA-MDS_VP3000_UM_TC_20250523) P438