Error - Delta M70A-260 Installation And Operation Manual

9.1

Error

Error num- Description
ber
Mains frequency lies above the OFR setting (overfre-
quency detection).
E01
Incorrect country or grid type setting.
Mains frequency lies below the UFR setting (underfre-
quency detection).
E02
Incorrect country or grid type setting.
E07 Non-linear load in the grid and in the vicinity of the inverter.
E08 AC cable is not connected correctly.
There is normally an external load isolating switch between
the inverter and the mains (e.g. in an equipment terminal
box). This is used to isolate the inverter from the mains
E09
and to shut off its AC voltage supply.
AC cable is not connected correctly.
Grid voltage lies below the UVR setting (undervoltage
detection).
E10, E15,
E20
Incorrect country or grid type setting.
AC cable is not connected correctly.
Mains voltage lies above the OVR setting (overvoltage
detection).
E11, E13,
E16, E18, Supply voltage during operation is greater than the OVR
Langs. setting.
E21, E23
Incorrect country or grid type setting.
E30 The DC input voltage is too high.
Insulation fault in the PV system.
E34
Large PV system capacitance between Plus and Ground
or Minus and Ground or both.
Installation and operation manual M70A_260 Flex RPI703M26000 EU V1.1 EN 2022-08-02
9 Error events and troubleshooting
Suggestions for resolution
Check the mains frequency.
Check the country and grid type settings.
Check the mains frequency.
Check the country and grid type settings.
The grid connection of the inverter must be kept away from
non-linear loads; if necessary, move it further away.
If this error occurs repeatedly, contact Delta Customer
Service.
Check the AC cable connection.
Check that the external load isolating switch is closed.
Check the AC cable connection.
Check the grid voltage connection at the inverter terminals.
Check the country and grid type settings.
Check that the AC cable is connected correctly.
Check the mains voltage.
Check the mains voltage.
Check the country and grid type settings.
Design the module strings so that the DC input voltage is
below the maximum permissible DC input voltage.
Check the insulation of the DC inputs.
Check the capacity. Dry the PV modules if necessary.
Error
89