AB 74 fault code meaning
AB / 74
Series: PowerFlex 700S Phase II
HiHp PwrEE Error
AC drive
Meaning: (High Horse Power Only) Power EEPROM Error - the Cycling Ring Checksum (CRC) of the data stored in the High Power Fiber Optic Interface circuit board EEPROM does not match the stored CRC.
Possible causes
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