0: No fault
1: Inverter fault
2: Over current during acceleration
3: Over current during deceleration
4: Over current at constant speed
5: Overvoltage during acceleration
6: Overvoltage during deceleration
7: Overvoltage at constant speed
8: Braking resistance overload
9: Low Voltage
10: Overloaded inverter
11: Overloaded motor
12: Reserved
13: Power phase failure
14: Overheating of the inverter
15: External device error
16: Communication error
17: Contactor Error
18: Error of current detection
19: Error of automatic tuning
20: Reserved
21: EPROM memory error
22: Hardware error of the inverter