REFUSOL 20K-2T, Руководство по эксплуатации

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Technical Description 26
Display and Operating Elements
REFUsol 20K...33K-2T
982079 | 05 | 2021-03
3.7.4 Menu Display
When the DC voltage exceeds 250 V, the inverter
starts and the LCD display shows Initializing… is dis -
played.
Fig. 25: Starting the inverter
Initializing…
Wait 10 s
Check
Normal
(Feed-in operation)
Fault
(temporary)
Permanent
Tab. 3: Operating states
Wait
The DC voltage is more than 250 V, the values of
the AC voltages are within the permissible
range. If this is not the case, the inverter switch -
es to the temporary or permanent error state. In
this operating state, the inverter waits for the
next initialisation step "Check".
Check
The inverter checks the insulation resistance of
the PV system, the status of the AC grid relays
and other safety functions. It also carries out a
self-test to ensure that the software and hard -
ware of the inverter are functioning without er -
rors. The inverter enters the temporary or
permanent error state when an error or fault
has been detected.
Normal
The inverter is in the "Normal" operating state,
feeding into the grid is taking place, when an er -
ror or fault occurs, the inverter goes into the
temporary or permanent error state.