REFU REFUsol 50K-3T Bedienungsanleitung Seite 52

Event list with error and information messages
Tab. 8:
ID Event name Event description Measure
ID03 GridOFP The frequency of
the AC power grid
is too high.
ID04 GridUFP The frequency of
the AC mains is
too low.
ID05 PVUVP DC voltage is too
low.
ID09 PvOVP DC voltage is too
high.
ID06 VLvrtlow AC voltage is too
low.
ID07- – (Reserved)
ID08
ID10 IpvUnbal- DC current is dis-
ance tributed asymmet-
rically to the MPPT
inputs.
ID11 PvConfigSet- Wrong input
Wrong mode.
52 Error Messages and Troubleshooting
Main Menu (v2.6)
The inverter automatically returns to normal operating status when the frequency is
again within the permitted limits.
Check the wiring of the connected PV modules for damage, insulation damage and
correct connection.
The inverter automatically returns to normal operating status after the cause of the
fault has been rectified.
Check the applied AC voltages; if critical voltage conditions persist, contact your pow-
er supply company.
–
Check that the PV strings are correctly assigned and connected at both MPPT inputs.
The maximum DC currents should be almost symmetrical at both inputs.
Check if the MPPT mode (Parallel or Independent) is set correctly according to the PV
system configuration, change if necessary.
REFUsol 50K-3T
982081 | 03 | 2021-03