Drivecon F73 fault code meaning
Drivecon / F73
Series: XT
Both Dir Active
AC drive
Meaning: Both direction signals are active at Check: same time >500 ms - controller operation - wiring of direction signals Brake closes immediately and speed is ramped down. If the fault happens at high speed, mechanical brake wears heavily.
Possible causes
Source: Drivecon XT Series Manual 7.2 Inverter fault codes