Delta STC2 fault code meaning
Delta / STC2
Series: MX300, VP3000
STO channel 2 fault
AC motor drive
Meaning: STO channel 2 circuit failure
Possible causes
- Control board fault
- 8-120
Source: MX300 Series User Manual (DELTA_IA-MDS_MX300_UM_TC_20260226) P190; VP3000 Series User Manual (DELTA_IA-MDS_VP3000_UM_TC_20250523) P438
Series: VP3000-E
STO channel 2 fault
AC motor drive
Meaning: STO channel 2 circuit failure
Possible causes
- Control board fault
Source: VP3000-E & VP3000-EHS User Manual (DELTA_IA-MDS_VP3000-E-VP3000-EHS_UM_SC_20260306) P403