Eaton 9SX 20KPM Series - Troubleshooting

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9. Troubleshooting
The following table is a list of faults with descriptions. If presented on the screen,
contact your Eaton service representative to provide the following information:
1. Product model, serial number;
2. Fault date; 3. Description of the fault
Fault
num
ber
Fault name
Possible cause
Solution
107
Input line reversed
Input L N line reversed
Confirm the input connection
No ground
Confirm the ground connection
120
N line loss
N line not connected
Confirm the N line connection
63F
Positive battery is not
connected
Battery not connected
Check the battery and battery
cable. If the battery is
damaged, please replace it
immediately by professional
person
642
Negative battery is
not connected
641
Positive battery low
voltage
Battery voltage low
Check the battery, If the battery
is damaged, Replace it
immediately by professional
person
644
Negative battery low
voltage
646
Positive battery
overcharge
Battery voltage high
Check the battery and charger,
If the battery is damaged,
Replace it immediately by
professional person
648
Negative battery
overcharge
645
Positive charger fault
UPS charger fault
Please contact your supplier
647
Negative charger
fault
640
Positive battery
number incorrect
The number of batteries
is incorrect
Please contact your supplier
643
Negative battery
number incorrect
300
Positive Bus high
Positive Bus voltage
high
Please contact your supplier
301
Negative Bus high
Negative Bus voltage
high
Please contact your supplier
302
Positive Bus low
Positive Bus voltage low
Please contact your supplier
303
Negative Bus low
Negative Bus voltage
Please contact your supplier