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7 Commissioning
Commissioning is a critical part for a well-installed PV system, which can
protect against fires, injury and electrical shock.
7.1 Inspection before Commissioning
Before starting the inverter, you should check the following items.
1.
Inverter unit is accessible for operation, maintenance and service.
2.
Re-check that the inverter is firmly installed onto the wall.
3.
Space for ventilation well is provided for one inverter or more than one
inverter.
4.
Nothing is left on the top of the inverter unit.
5.
Inverter and accessories are correctly connected.
6.
Cables are routed in safe place or protected against mechanical
damage.
7.
Specification of AC circuit breaker is reasonable.
8.
Terminals not used underneath the inverter are sealed.
9.
Warning signs & labels are suitably affixed and durable.
7.2 Commissioning Procedure
If all checking items mentioned above meet the requirements, precede the
following procedures to start up the inverter for the first time.
Step 1
Close external AC circuit breaker.
Step 2
Rotate DC switch to “ON” position.
Suppose there are sufficient sunlight and
enough DC power. PV arrays initialize and
supply DC power to inverter. The LCD
display is activated to check the validity first.
If there is a defect on the display, contact
Sungrow.
Step 3
Press
to choose country code. Confirm
the settings by
Pressing
ENTER
.
Step 4
Select the country code according to the
inverter’s installation country. Each country
code
represents
corresponding
local
protective parameters that have been preset
before delivery. Before country setting, there
is warning screen.
Refer to “10.11 Protective Parameters Setting” for country code explanation. If
the inverter is installed where the country code is not included, please choose
item “Other” and manually set the protective parameters.
If the country code is not set correctly during commissioning, reset the
protective parameters as dictated in “10.11 Protective Parameters
Setting”. There may be faults if otherwise.
