FoxESS R100 - Page 25

24
Item
Fault Code
Statement
Solution
13
1051
Grid Phase Lost Fault
The inverter will reconnect to the grid after the grid is
restored.
If the fault recurs:
1. Measure the actual grid voltage.
2. Check that the grid voltage and frequency of each
phase do not meet the grid-tied requirements, and
contact the local power company for solutions.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
14
1057
Bus Transient Over Volt
Wait for the inverter to return to normal.
If the fault recurs, turn off the AC and DC side
switches, wait for 10 minutes, and then turn on the AC
and DC switches in turn to restart the inverter.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
15
1065
Hardware Overcurrent
16
1066
DC Input MPPT1
Reverse Fault
Check whether the positive and negative polarities of
the strings corresponding to the fault are reversed.
If the polarities are reversed, adjust the string
polarities when the string current is low.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
17
1067
DC Input MPPT2
Reverse Fault
18
1070
BUS Volt Imbalance
High Fault
Wait for the inverter to return to normal.
If the fault recurs, turn off the AC and DC side
switches, wait for 10 minutes, and then turn on the AC
and DC switches in turn to restart the inverter.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
19
1071
BUS Hardware Over
Volt
20
1072
MPPT Access Fault
Wait for the inverter to return to normal.
If the fault recurs, turn off the AC and DC side
switches, wait for 10 minutes, and then turn on the AC
and DC switches in turn to restart the inverter.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
21
1081
DC Input MPPT3
Reverse Fault
Check whether the positive and negative polarities of
the strings corresponding to the fault are reversed.
If the polarities are reversed, adjust the string
polarities when the string current is low.
If the fault still exists, please contact FOXESS
Customer Service for further assistance.
22
1090
Hardware Power
Module Fault
Wait for the inverter to return to normal.
If the fault recurs, turn off the AC and DC side
switches, wait for 10 minutes, and then turn on the AC
23
1096
Auxiliary Chip Fault