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Installation and Operating Manual for RPI M15A M20A Solar Inverter V1.0 2016-03-18
11 Error messages and troubleshooting
11.1 Errors
Number
Message
Possible cause of error
Suggestions for troubleshooting
E01
AC Freq High
Power grid frequency is above the
OFR
setting
(overfrequency recognition).
Check the grid frequency on the inverter display.
Incorrect country setting.
Check the country setting on the inverter dis-
play.
E02
AC Freq Low
Power grid frequency is below the
UFR
setting
(underfrequency recognition).
Check the grid frequency on the inverter display.
Incorrect country or grid setting.
Check the country and grid settings.
E11, E13,
E16, E18,
E21, E23
AC Volt High
Power grid voltage is above the
OVR
setting
(overvoltage recognition).
Check the grid voltage on the inverter display.
Supply voltage is above the
OVR Langs.
setting
during operation.
Check the grid voltage on the inverter display.
Incorrect country or grid setting.
Check the country and grid settings.
E10, E15,
E20
AC Volt Low
Power grid voltage is below the
UVR
setting
(undervoltage recognition).
Check the grid connection at the inverter termi-
nal block.
Incorrect country or grid setting.
Check the country and grid settings.
Incorrect wiring in the AC plug.
Check the wiring of the AC plug.
E07
Grid Quality
Non-linear load on the grid and close to the
inverter.
The grid connection of the inverter must be far
removed from a non-linear load, if required.
E08
HW Connect Fail
Incorrect wiring in the AC plug.
Check the wiring of the AC plug.
E34
Insulation
Insulation fault in the PV installation.
Check the insulation of the DC inputs.
Large PV installation capacitance between Plus
and ground or Minus and ground or both.
Check the capacitance; if necessary, dry the PV
modules.
E09
No Grid
The AC/DC disconnector is in the
OFF
position. Move the AC/DC disconnector to the
ON
posi-
tion.
AC plug is not properly connected.
Check the connections in the AC plug and its
connection to the inverter.
Incorrect wiring in the AC plug.
Check the wiring of the AC plug.
E30
Solar1 High
DC input voltage at DC1 is above the maximum
permissible DC input voltage.
Change the solar installation setting so that the
DC input voltage at DC1 is below the maximum
permissible DC input voltage.
E31
Solar2 High
DC input voltage at DC2 is above the maximum
permissible DC input voltage.
Change the solar installation setting so that the
DC input voltage at DC1 is below the maximum
permissible DC input voltage.