AB F26 fault code meaning
AB / F26
Series: 1305
Power Mode Fault
AC drive
Meaning: Internal error.
Possible causes
Source: Allen-Bradley Bulletin 1305 User Manual Table 6.B Fault Descriptions P6-3~6-8
Series: PowerFlex 700H
VHz Neg Slope
AC drive
Meaning: ➋ Parameter 53 [Motor Cntl Sel] negative.
Possible causes
Source: