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8
Starting/Stopping
8.1
Starting
8.1.1 Inspection before starting
After the maintenance or service work, inspect the following items, and then start
inverter:
•
All connections are performed in strict accordance with relevant manual and circuit
diagram.
•
The coverings of the internal devices are fixed and secured.
•
The emergency stop button is released.
•
Make sure, by using suitable instruments, that there is no ground fault of the PV array.
•
Measure the DC, AC voltages with a multi-meter to check if the start-up conditions
are met, and ensure no overvoltage hazard.
•
Measure the DC voltage with multi-meter, and check if the polarity is correct.
If the inverter has been stored for more than half a year in the required storage
environment, a thorough and careful inspection is necessary before the inverter
is powered on.
8.1.2 Start Steps
When the foregoing conditions are met, proceed as follows to start the inverter:
step 1
Close the upstream and downstream switches of the inverter.
step 2
Close the AC and DC maintenance switches.
step 3
Stop the inverter through the touchscreen.
step 4
Manually close all DC switches inside the inverter.
step 5
Perform the start operation through the touchscreen, and the inverter starts grid-
connected operation.
After startup, the inverter will automatically check if parameters of the DC and AC side
meet the grid-connection requirements. If the requirements are met, and the set time
has been reached, the inverter will turn to the OPERATION mode and feed the
generated AC current to the grid.
-- -- E
En
nd
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