User Manual of String Inverter
34
Fault
word
ID
Fault/alarm name
Cause of failure/alarm
Troubleshooting
7
Unbalanced bus
voltage
Positive and negative bus
voltage unbalance exceeds
the set threshold.
1. Reset and check if the converter
works normally.
2. If it appears frequently, please
contact Hopewind technical staff.
8
High DC input
voltage
DC input voltage exceeds set
threshold.
1. Reset and check if the converter
works normally.
2. If it appears frequently, please
contact Hopewind technical staff.
9
Low DC input
voltage
DC input voltage is lower than
the set threshold.
Check if the switch is open.
Other
0
Grid-connected
relay fault
Relay status is wrong.
1. Reset and check if the converter
works normally.
2. If it appears frequently, please
contact Hopewind technical staff.
3
SPD alarm on the
AC side
Detect the SPD feedback
status error on the AC side.
1. Reset and check if the converter
works normally.
2. If it appears frequently, please
contact Hopewind technical staff.
4
Internal fan fault
Fan failure or abnormal
feedback signal
1. Reset and check if the converter
works normally.
2. If it appears frequently, please
contact Hopewind technical staff.
-- Chapter end --
Summary of Contents for hopeSun 10KTL
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Page 25: ...3 System installation 23 Figure 3 9 Grounding of multiple string inverters...
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