AB F8 fault code meaning
AB / F8
Series: 1305
Overtemp Fault
AC drive
Meaning: Temperature sensor detects excessive heat.
Possible causes
Source: Allen-Bradley Bulletin 1305 User Manual Table 6.B Fault Descriptions P6-3~6-8
Series: PowerFlex 40
Heatsink OvrTmp
AC drive
Meaning: Heatsink temperature exceeds a predefined value.
Possible causes
Source: Allen-Bradley PowerFlex 40 User Manual 22B-UM001 Table 4.A Fault Types P4-3~4-5
Series: PowerFlex 400
HeatsinkOvrTp
AC drive
Meaning: The heatsink temperature has 1 exceeded the maximum allowable value. 85 degrees C = Alarm 90 degrees C = Fault See Table 3.G, “Heatsink Over Temperature Fault (F8) Subcodes,” on page 12 for more information on this fault
Possible causes
Source:
Series: PowerFlex 700H
HeatsinkOvrTp
AC drive
Meaning: The heatsink temperature has 1 exceeded the maximum allowable value. 85 degrees C = Alarm 90 degrees C = Fault See Table 3.G, “Heatsink Over Temperature Fault (F8) Subcodes,” on page 12 for more information on this fault
Possible causes
Source:
Series: PowerFlex Digital DC (700DC)
Heatsink OvrTemp
DC drive
Meaning: The heatsink temperature is too high Possible causes include: The surrounding air temperature is too high. The drive’s cooling fans have failed (drives > 110 A). The heatsink is dirty.
Possible causes
Source: