What does a PHF fault mean on an ATV31 / ATV312 drive?

• Check for phase loss or phase imbalance
• Check the line voltage power, input connections and/or fuses
• Check to see if input power is single phase
• Reset the drive ( power cycle )
• Disable the detection by setting input phase loss to “nO” ( parameter IPL in Fault management menu FLt ) This is only possible when drive is not running ( display “rdY”)
• Then check the 3-phase power is balanced ( measurement of current in all phases )

Gepubliceerd voor:Schneider Electric Netherlands