AB F122 fault code meaning
AB / F122
Series: PowerFlex 40
I/O Board Fail
AC drive
Meaning: Failure has been detected in the drive control and I/O section.
Possible causes
Source: Allen-Bradley PowerFlex 40 User Manual 22B-UM001 Table 4.A Fault Types P4-3~4-5
Series: PowerFlex 400
I/O circuit board failure
AC drive
Meaning:
Possible causes
Source:
Series: PowerFlex 700L(700S second-generation control)
700L Fan Fail2
AC drive
Meaning: Fan failure on secondary 700L power structure.
Possible causes
Source: Allen-Bradley PowerFlex 700L Liquid-Cooled Drive User Manual 20L-UM001 Table 6.B/6.C