Maintenance And Troubleshooting; Routine Maintenance - Alpha ESS SMILE-T10-HV Installation Manual

MAINTENANCE AND TROUBLESHOOTING

10 Maintenance and Troubleshooting

10.1 Routine Maintenance

Normally, the inverter and battery pack need no maintenance or calibration.
However, in order to maintain the accuracy of the SOC, it is recommended to perform a
full charge calibration for SOC (charging battery until the charging power is 0) on the
battery at regular intervals (such as two weeks)
Disconnect the inverter and battery pack from all power sources before cleaning. Clean
the housing, cover and display with a soft cloth.
To ensure that the inverter and battery pack can operate properly in the long term, you
are advised to perform routine maintenance on it as described in this chapter.
Maintenance checklist
Check Item Acceptance Criteria
Product The heat sinks of the inverter are free from
cleanliness obstacles or dust.
Product visible The inverter and battery pack are not damaged
damage or deformed.
1. The inverter and battery pack operate with
no abnormal sound.
Product running
2. All parameters of the inverter and battery
status
pack are correctly set. Perform this check
when the inverter and battery pack is running.
1. Cables are securely connected.
2. Cables are intact, and in particular, the
cable jackets touching the metallic surface are
Electrical
not scratched.
connections
3. Unused PV input terminals and COM ports
of the inverter, and battery power and COM
terminals are locked by watertight caps if the
product is mounted outdoor.
CAUTION
Risk of burns due to hot heatsink and housing of the inverter
The heatsink and housing can get hot during operation.
During operation, do not touch any parts other than the cover of the inverter.
Wait approx. 30 minutes before cleaning until the heatsink has cooleddown.
50
Maintenance Interval
Once every 6 to 12
months
Once every 6 months
Once every 6 months
Perform the first
maintenance 6 months
after the initial
commissioning.
From then on, perform the
maintenance once every 6
to 12 months.
51
10.2 Troubleshooting
10.2.1 Inverter Error Troubleshooting
Error No. Error description
Grid_OVP
100000
Grid_UVP
100001
Grid_OFP
100002
Grid_UFP
100003
BUS_OVP1
100005
BUS_OVP2
100006
GFCI_fault
100008
Leakage current test failure
100009
Grid relay fault
100010
Over_Temperature
100011
M_S_com_fault
100014
Output DC over current
100038
Output_overload
100043
APU UVP
100044
DC_Input_Disturbance
100046
100047
Grid disturbance
100048 Grid_unbalance
100049 Frequency jitter
100050 Grid_overcurrent
MAINTENANCE AND TROUBLESHOOTING
Solution
1. Check whether Grid is abnormal.
2. Confirm whether the grid cable
connection is normal.
3. Restart inverter and ensure whether
the fault is existing.
Restart inverter and ensure whether
the fault is existing.
1. Check whether the environment
around inverter is with poor heat
dissipation.
2. Confirm whether inverter
installation meet the installation
requirements.
Restart System and ensure whether
the fault is existing.
1. Check whether Backup load is
overload.
2. Restart inverter and confirm
whether the fault is existing.
Restart System and ensure whether
the fault is existing.
1. Check whether Grid is abnormal.
2. Confirm connection of gird cable is
normal.
3. Restart inverter and ensure
whether the fault is existing.