Malfunctions - Delta RPI153FA0E0000 Installation And Operating Manual

11.3 Malfunctions

Number Message
F36, F37,
AC Current High
F38, F39,
F40, F41
Bus Unbalance
F30
F60, F61,
DC Current High
F70, F71
Ground Current
F24
HW AC OCR
F45
F31, F33,
HW Bus OVR
F35
HW COMM1
F23
HW COMM2
F22
HW Connect Fail
F26
HW CT A Fail
F42
HW CT B Fail
F43
HW CT C Fail
F44
F01, F02,
HW DC Injection
F03
F15, HW DSP ADC1,
F16,
HW DSP ADC2,
F17
HW DSP ADC3
HW Efficiency
F20
Installation and Operating Manual for RPI M15A M20A Solar Inverter V1.0 2016-03-18
Possible cause of error
Overvoltage during operation.
Internal fault.
Not completely independent or parallel between
inputs.
Ground leak in the PV installation.
Internal fault.
Internal fault.
Insulation fault in the PV installation.
Large PV installation capacitance between Plus
and ground or Minus and ground.
Internal fault.
Large grid harmonics.
Internal fault.
DC input voltage is above the maximum permis-
sible DC input voltage.
Overvoltage during operation.
Internal fault.
Internal fault.
Internal fault.
Internal fault.
Internal fault.
Internal fault.
Internal fault.
The grid waveform is not normal.
Internal fault.
DC input voltage is below the minimum required
DC voltage.
Internal fault.
Incorrect calibration.
Internal fault.
11 Error messages and troubleshooting
Suggestions for troubleshooting
Consult Delta customer service.
Consult Delta customer service.
Check the input connections.
Check the insulation of the PV installation.
Consult Delta customer service.
Consult Delta customer service.
Check the insulation of the DC inputs.
Check the capacitance; it must be < 2.5 µF. If
needed, install an external transformer.
Consult Delta customer service.
Check grid waveform. The grid connection of
the inverter must be far removed from non-
linear loads, if required.
Consult Delta customer service.
Change the solar installation setting so that the
DC input voltage at DC1 is below the maximum
permissible DC input voltage.
Consult Delta customer service.
Consult Delta customer service.
Consult Delta customer service.
Consult Delta customer service.
Consult Delta customer service.
Consult Delta customer service.
Consult Delta customer service.
Consult Delta customer service.
Check grid waveform. The grid connection of
the inverter must be far removed from non-
linear loads, if required.
Consult Delta customer service.
Check the DC input voltage on the inverter dis-
play.
The solar irradiation is possibly too low.
Consult Delta customer service.
Check the accuracy of the voltage and power.
Consult Delta customer service.
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