REFU REFUsol 50K-3T Bedienungsanleitung Seite 26

Tab. 3: Operating states
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-
Wait
es to the temporary or permanent error state. In
this operating state, the inverter waits for the
next initialisation step "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-
Check
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.
The inverter is in the "Normal" operating state,
feeding into the grid is taking place, when an er-
Normal
ror or fault occurs, the inverter goes into the
temporary or permanent error state.
26 Technical Description
Display and Operating Elements
Tab. 3: Operating states
The inverter has detected a temporary error or
malfunction and is in the operating state tempo-
rary error state. As soon as the error no longer
Fault
exists, the inverter automatically returns to the
operating state "Normal".
If the error condition still exists, check the in-
verter using the error code displayed.
The inverter has detected a permanent error
Perma-
that cannot be acknowledged. The fault is recti-
fied by a qualified electrician and by evaluating
nent
the displayed error code.
REFUsol 50K-3T
982081 | 03 | 2021-03