KEHUA TECH iStoragE1 Series, Руководство пользователя

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6 Maintenance and Troubleshooting
Hybrid Inverter
User Manual
84
Table6-1 Maintenance checklist
Check Item Acceptance Criteria Maintenance Interval
Product
cleanliness
The heat sink of the inverter are free from
obstacles or dust.
Semiannually or once per year
Product visible
damage
The inverter and battery pack are not damaged
or deformed.
Semiannually
Product
running status
1. The inverter and battery pack operate with
no abnormal sound.
2. All parameters of the inverter and battery
pack are correctly set. Perform this check
when the inverter and battery pack is running.
Semiannually
Electrical
connections
1. Cables are securely connected.
2. Cables are intact, and in particular, the cable
jackets touching the metallic surface are not
scratched.
3. Unused PV input terminals, unused
communication ports of the inverter, power
and COM terminals of the battery pack are
locked by watertight caps if the product is
mounted outdoor.
The first maintenance is needed
6 months after the initial
commissioning. And then make
it semiannually or once per
year.
6.2 Troubleshooting
The inverter is designed on the basis of the grid-tied operation standards and meets the requirements
of safety and EMC. Before provided to client, the inverter has been experienced for several rigorous
tests to ensure reliable and optimizing operation. The troubleshooting is as shown in Table6-2.
Table6-2 Troubleshooting
Check item Fault description Solution
DC bus over-voltage
Bus voltage is too
high.
1. Check whether the input voltage of PV1 and
PV2 exceed 580V.