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4 Start & Stop
4.1 Starting
4.1.1 Inspection Before Starting
After maintenance or troubleshooting, the inverter needs to be started. Check the
following items before starting the devices:All connections are done by strictly following
the installation manual and circuit diagram.
The coverings of the internal devices are fixed and secured.
The cabinet door is closed.
The emergency stop button is released and the Start/Stop switch is in the "Stop"
position.
Turn the AC Switch and the DC Switch to the "OFF" position.
Make sure, via suitable instruments, that there is no ground fault of the PV modules.
Measure the DC and AC current with multimeter to check if they fulfill the inverter
startup conditions and there is no overvoltage hazard.
After longtime storage, a thorough and professional test is necessary before
starting the inverter.
4.1.2 Starting Steps
When the abovementioned conditions are fulfilled, proceed as follows to start the inverter:
Step 1 Open the inverter cabinet door, close the AC switch, and close the cabinet door.
Step 2 Connect all inverter upstream switches.
Step 3 Open the inverter cabinet door, turn the DC Main Switch to the "ON" position, and close the
cabinet door (close all the 16 DC switches in turns even if there are less than 16 inputs
connected to the DC cabinet on site).
Step 4 Turn the Start/Stop switch to the "START" position.
Step 5 Inverter starts.
After startup, the inverter will automatically check if parameters of the DC and AC side meet
the grid-connection requirements. If so and the set time has been reached, the inverter will
turn to the OPERATION mode and feed the generated AC current to the grid.
The inverter needs no manual control during normal operation.
Keep the door closed and locked. Store the keys of the door by appointed
personnel.
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