Troubleshooting - Alpha ESS SMILE-S6 Series Installation Manual

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10.2

Troubleshooting

10.2.1 Inverter Error Troubleshooting
LED Status
Normal
Fault
COM
Description
Grid AC over voltage
Grid AC under voltage
Grid AC absent
Grid AC over fre-
quency
Grid AC under fre-
quency
Grid abnormal
Inverter over tempera-
Warning ture
Ground disconnection
alarm
Zero firewire reverse
alarm
NTC fail
Battery voltage very
high
___________________________________________________________________
Inverter LED Signals
On: system is in working mode normally
Flicker: system is in standby mode or self-checking
process
Off: system is in fault mode or off
Off: system is in working mode normally or off
On: system is in fault mode
On: network connection is normal
Flicker: connecting to the server
Off: system is not connected network
Solution
1. If these warnings occur occasionally, it is a short-time fault
of the grid. The inverter will resume work after the grid is nor-
mal. No action is required.
2. If these warnings occur frequently but can be automatically
cleared, contact the local power operator for permission and
modify the grid protection parameters of the inverter.
3. If the recovery fails for a long time, please confirm：
1) Whether the AC circuit breaker is switched off.
2) Whether the AC terminal is in good contact
3) Whether the grid is disconnected.
1. If the warning occurs occasionally and the inverter can re-
sume work automatically. No action is required.
2. If this warning occurs frequently or continuously, check
whether the installation site is exposed to direct sunlight, with
good ventilation and high ambient temperature. If there is no
direct sunlight and there is good ventilation and heat dissipa-
tion, please contact AlphaESS after-sales team.
Please check whether the grounding cable is connected
properly.
Please check whether the live line and neutral line are in-
versely connected.
Please check whether the cable connection to the NTC termi-
nal is loose.
If the warning occurs at the first installation, please check
whether the battery voltage is within the allowable range.
If this warning occurs during operation, check whether the
battery cable is loose and whether the BMS communication
is abnormal.
Alpha ESS Co., Ltd.
Your Smart Energy
Description
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