SMA Solar Technology AG
Commissioning
Installation Manual
WB33-38-IA-IEN120940
39
6 Commissioning
6.1 Commissioning the Inverter
1. Check the following requirements before commissioning:
– Correct mounting and connection of the inverter.
– Appropriately sized miniature circuit-breaker.
– Correct earthing of the small wind turbine system in accordance with the instructions of the
manufacturer.
– The rectifier and overvoltage protection (e.g. Windy Boy Protection Box) are installed
between the small wind turbine system and the inverter.
– Unused DC inputs are closed with the corresponding DC connectors and sealing plugs
2. Switch on the miniature circuit-breaker.
3. Commission the small wind turbine system in accordance with the instructions of the
manufacturer.
☑ All 3 LEDs on or flashing: the start-up phase commences.
☑ Green LED on: commissioning successful.
or
☑ Green LED flashing: grid connection conditions have not yet been reached. Wait until the
green LED is permanently on.
or
☑ The red or yellow LED lights up or flashes: a disturbance has occurred. Proceed to step 3.
4. Read Section 9 "Troubleshooting" (page 56) and if necessary eliminate the fault or disturbance.
Object
Description
A
Green LED: operation
B
Red LED: earth fault or varistor
defective
C
Yellow LED: disturbance
Self-test in accordance with DK 5940, Ed. 2.2 during initial start-up
(applies to Italy only)
The Italian DK 5940 standard prescribes that an inverter can only operate on the electricity
grid if the disconnection times for overvoltage, undervoltage, minimum frequency and
maximum frequency have been checked.
Start the self-test as described in Section 6.3 "Self-Test in Accordance with DK 5940, Ed.
2.2 (Applies to Italy Only)" (page 41). The test takes approx. 8 minutes.
