Delta RPI M50A Installation And Operation Manual

10 Error events and troubleshooting
Installation and Operation Manual for Inverter RPI M50A_12s V1 EU EN 2017-03-09
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10.1 Error
Number Message Possible cause Correction suggestions
E01
AC Freq High
(AC Freq High)
Mains grid frequency lies above the OFR setting
(overfrequency detection).
Check the grid frequency on the inverter display.
Incorrect country setting.
Check the country setting on the inverter dis-
play.
E02
AC Freq Low
(AC Freq Low)
Mains grid frequency lies below the UFR setting
(underfrequency detection).
Check the grid frequency on the inverter display.
Incorrect country or grid type setting. Check the country and grid type settings.
E11, E13,
E16, E18,
E21, E23
AC Volt High
(AC Volt High)
Mains grid voltage lies above the OVR setting
(overvoltage detection).
Check the grid voltage on the inverter display.
Supply voltage is greater than the OVR Langs.
setting during operation.
Check the grid voltage on the inverter display.
Incorrect country or grid type setting. Check the country and grid type settings.
E10, E15,
E20
AC Volt Low
(AC Volt Low)
Mains grid voltage lies below the UVR setting
(undervoltage detection).
Check the grid voltage connection at the
inverter terminals.
Incorrect country or grid type setting. Check the country and grid type settings.
Incorrectly wired AC plug. Check the wiring of the AC plug.
E07
Grid Quality
(Grid Quality)
Non-linear load in the grid and in the vicinity of
the inverter.
If necessary, the grid connection must be far
away from a non-linear load.
E08
HW Connect Fail
(HW Connect Fail)
Incorrectly wired AC plug. Check the wiring of the AC plug.
E34
Insulation
(Insulation)
Insulation fault in the PV system. Check the insulation of the DC inputs.
Large PV system capacitance between Plus
and Ground or Minus and Ground or both.
Check the capacitance and dry the PV modules
if necessary.
E09
No Grid
(No Grid)
The AC/DC disconnector is in the OFF position.
Turn the AC/DC disconnector to the ON posi-
tion.
AC plug is not correctly connected.
Check the connection in the AC plug and its
connection to the inverter.
Incorrectly wired AC plug. Check the wiring of the AC plug.
E30
Solar1 High
(Solar1 High)
The DC input voltage at DC1 is greater than the
maximum permissible DC input voltage.
Change the solar system setting so that the DC
input voltage at DC1 lies below the maximum
permissible DC input voltage.
E31
Solar2 High
(Solar2 High)
The DC input voltage at DC2 is greater than the
maximum permissible DC input voltage.
Change the solar system setting so that the DC
input voltage at DC1 lies below the maximum
permissible DC input voltage.

Delta RPI M50A Specifications

General

Brand	Delta
Model	RPI M50A
Category	Inverter
Language	English