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