AB F4 fault code meaning
AB / F4
Series: 1305
Undervolt Fault
AC drive
Meaning: DC Bus voltage fell below the minimum value.
Possible causes
Source: Allen-Bradley Bulletin 1305 User Manual Table 6.B Fault Descriptions P6-3~6-8
Series: PowerFlex 40
UnderVoltage
AC drive
Meaning: DC bus voltage fell below the minimum value.
Possible causes
Source: Allen-Bradley PowerFlex 40 User Manual 22B-UM001 Table 4.A Fault Types P4-3~4-5
Series: PowerFlex 400
UnderVoltage
AC drive
Meaning: The DC bus voltage fell below M the minimum value of 333V volta for 400/480V drives and 461V for 600/ 690V drives. You can enable/disable this fault with parameter 238 [Fault Config 1] (page 2-28). See Table 3.D, “Under Voltage Fault (F4) Subcodes,” on page 12 for more information on this fault.
Possible causes
Source:
Series: PowerFlex 700H
UnderVoltage
AC drive
Meaning: The DC bus voltage fell below M the minimum value of 333V volta for 400/480V drives and 461V for 600/ 690V drives. You can enable/disable this fault with parameter 238 [Fault Config 1] (page 2-28). See Table 3.D, “Under Voltage Fault (F4) Subcodes,” on page 12 for more information on this fault.
Possible causes
Source:
Series: PowerFlex Digital DC (700DC)
AC Undervoltage
DC drive
Meaning: There is an undervoltage on the power circuit. Possible causes include: Par 481 [UnderVolt Thresh] is set incorrectly Set Par 481 [UnderVolt Thresh] correctly and then (possibly set to 400V when the drive is rated for reset the drive via Par 1347 [Fault Clear].
Possible causes
Source: