Operational status (display)

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Off

Input voltage on the DC side (photovoltaic modules) is too low or inverter switched off.

Bell symbol

An event is present. Remedial measures can be found in the chapter Event codes. The event can be queried in the inverter menu by going to Service > Event list or can be viewed using the Down arrow key.

Software update symbol

There is a software update available for the inverter. The software update process can be started in the inverter menu under Service > Updates or via the inverter.

Globe symbol

Shows a successful connection to the solar portal.

Wifi icon

Displays the Wifi connection status.

Shutdown by ext. signal

The feed-in is shut down as a result of an external signal from the energy supply company.

Starting

Internal control measurements according to VDE 0126

Starting, including check of DC generators

Device performs an internal check

Equalisation charge

(only with battery connected)

The battery which is connected to the inverter is charged from the public grid using an equalisation charge. It can only be activated with installer access via the service menu.

Battery sleep mode

(only with battery connected)

If the battery charging status falls below the min. SoC (e.g. 5% for BYD batteries), the battery sleep mode status is displayed and the battery is disconnected from the system. Sleep mode is exited as soon as the battery can be charged with excess power.

If the SoC of the battery falls below the minimum allowed SoC, the battery receives a trickle charge of x% of the total battery capacity from the grid to protect the battery.

Trickle charge:

5% trickle charge the first time the SoC falls below the permitted value.

10% trickle charge the second time the SoC falls below the permitted value.

15% trickle charge the third time the SoC falls below the permitted value.

Once sleep mode has been exited, the next trickle charge starts again with +5 %.

DC voltage too low

Electronics are ready for operation, DC voltage is still too low for feed-in.

Feed in

Measurement successful, MPP control active (MPP = maximum power point)

Feed-in ext. regulated

The feed-in is limited due to a fault

(e.g. PV energy is restricted, Active power control, too high temperature, fault)

Event xxxx, yyyy

An event is present. Up to two active events can be displayed. Remedial measures can be found in the chapter Event codes.

Ext. battery control active

(only with battery connected)

The battery is controlled by an external management system. Ch. 8.1

DC check

There may be several causes for this message, e.g.:

• the PV power may be too low,
• there is currently no home consumption,
• the feed-in requirements are not met and are being checked.

As soon as the checks prove positive, the inverter feeds in again.

IP address

Inverter IP address

Insulation measurement

Device performs an internal check

Grid check

Device performs an internal check

Service charging

(only with battery connected)

The battery which is connected to the inverter is charged from the public grid using an equalisation charge. It must be activated via the service menu. It can only be activated with installer access via the service menu.

Deep discharge protection

(only with battery connected)

The battery which is connected to the inverter is charged from the public grid using an equalisation charge.

Impermissible DC voltage

DC voltage still too high.

Commutation detection

As soon as the inverter has been activated on the AC side, the DC strings are checked for commutation. All DC inputs are checked in the process. Once the check has been run without any errors, the message disappears. For the check to be run, there must be sufficient power at the DC strings (0.3 A). The DC input of the battery and all PV inputs are checked. During the check, only the DC connection that is being checked is active. The other DC connections are deactivated until the check is complete. Therefore, the PV strings may be deactivated for longer if the irradiation is very low, until all the inputs have been checked.

Waiting time ...

The device is not feeding into the public grid due to an event.

Grid synchronisation: The inverter synchronizes itself with the public grid and feeds in.

Grid check: A grid check is carried out.

Grid error: There is an error in the public grid. As soon as this is rectified, the inverter feeds in again.

Overheating: The inverter’s temperature is too high. As soon as this has fallen, the inverter feeds in again.