Commissioning the Inverter

Qualified person

Requirements:

The inverter must be correctly mounted.
The circuit breaker must be correctly rated and mounted.
All cables must be completely and correctly connected.
Unused DC inputs must be sealed using the corresponding DC connectors and sealing plugs.
The country data set must be set correctly for the country or the purpose.

Procedure:

Insert the lower enclosure lid from above and flip it down. The screws must protrude from the lower enclosure lid.

Tighten all six screws with an Allen key (AF 3) in the order 1 to 6 (torque: 2.0 Nm ± 0.3 Nm). By tightening the screws in the prescribed order, you avoid warping the enclosure lid, which would keep it from sealing correctly. Tip: If the screws fall out of the lower enclosure lid, insert the long screw into the lower middle hole and the 5 short screws into the other holes.
Securely plug in the ESS. The ESS must be aligned parallel to and flush with the enclosure.
Switch on the circuit breaker of all 3 line conductors.
If the multifunction relay is used, connect the supply voltage to the load.

All 3 LEDs start to glow and the start-up phase begins. The start-up phase may take several minutes.
The green LED is glowing and the display alternates automatically between the device type, firmware version, the serial number or designation of the inverter, the NetID, the configured country data set and the display language.

The green LED is flashing?

Possible cause of error: the DC input voltage is still too low or the inverter is monitoring the utility grid.

Once the DC input voltage is sufficiently high and the grid-connection conditions are met, the inverter will start operation.

The red LED is glowing and an error message and event number appear in the display?