Alpha ESS SMILE-B3-PLUS Installation Manual page 27

MAINTENANCE AND TROUBLESHOOTING
10 Maintenance and Troubleshooting
10.1 Routine Maintenance
Normally, SMILE-B3-PLUS need no maintenance or calibration.
Disconnect SMILE-B3-PLUS from all power sources before cleaning. Clean the housing,
cover and display with a soft cloth.
To ensure that the SMILE-B3-PLUS 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 heatsink at the back of SMILE-B3-PLUS
cleanliness are free from obstacles or dust.
Product visible The SMILE-B3-PLUS are not damaged or
damage deformed.
1. SMILE-B3-PLUS operate with no abnormal
sound.
Product running
2. All parameters of SMILE-B3-PLUS are
status
correctly set. Perform this check when
SMILE-B3-PLUS 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 cable glands are blocked by rubber
sealing which are secured by pressure caps.
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.
Wait approx. 30 minutes before cleaning until the heatsink has cooled down.
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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.
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10.2 Troubleshooting
10.2.1 Inverter Error Troubleshooting
Inverter LED Signals
LED Indictor Status
Normal
Fault
COM
Solution
Description
Grid AC over voltage 1. If these warnings occur occasionally, it is a short-time fault
of the grid. The inverter will resume work after the grid is
Grid AC under voltage
normal. No action is required.
2. If these warnings occur frequently but can be automatical-
Grid AC absent
ly cleared, contact the local power operator for permission
and modify the grid protection parameters of the inverter.
Grid AC over frequency
3. If the recovery fails for a long time, please confirm：
1) Whether the AC circuit breaker is switched off.
Grid AC under frequency
2) Whether the AC terminal is in good contact
Grid abnormal 3) Whether the grid is disconnected.
Warning
1. If the warning occurs occasionally and the inverter can
resume work automatically. No action is required.
2. If this warning occurs frequently or continuously, check
Inverter over
whether the installation site is exposed to direct sunlight,
tempera-ture
with good ventilation and high ambient temperature. If
there is no direct sunlight and there is good ventilation and
heat dis-sipation, please contact AlphaESS after-sales team.
Ground disconnection Please check whether the grounding cable is connected
alarm properly.
MAINTENANCE AND TROUBLESHOOTING
Description
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