7 Commissioning; Verify Before Commissioning; Commissioning Procedure - Sungrow SG2KTL-S User Manual

7 Commissioning

7.1 Verify before Commissioning

Before starting up the inverter, you should check the following items.
1. Inverter unit is accessible for operation, maintenance and service.
2. Re-check whether the inverter is firmly secured to the wall.
3. Room for ventilation is provided for one inverter or more than one inverter.
4. Nothing is left on top of the inverter.
5. Inverter and accessories are correctly connected.
6. Cables are routed in safe place or protected against mechanical damages.
7. Specification of AC circuit breaker is reasonable.
8. Terminals unused underneath the inverter are sealed.
9. Warning signs & labels are suitably affixed and durable.

7.2 Commissioning Procedure

Make sure all the above mentioned items meet the requirements.
Step 1
Connect the external AC circuit breaker.
Step 2
Rotate the optional DC switch to the "ON" position.
Step 3
Provided that there is sufficient sunlight:
PV arrays initialize and supply DC power to inverter;
DC-link starts to charge and check the state of the utility grid;
If the conditions are OK, inverter feeds AC power to grid and enters into the
running state.
Observe the status of LED indicator.
Step 4
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