Installation manual

111
EN
Troubleshooting
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Solution
HW Red ADC2 X ► Please contact your installation tech-
nician or DELTA tech. support
HW Efciency X ► Please contact your installation tech-
nician or DELTA technical support
HW COMM2
X
► Please contact your installation tech-
nician or DELTA technical support
HW COMM1 X ► Please contact your installation tech-
nician or DELTA technical support
Ground Current X ► Check the insulation of Solar inputs
► Check the capacitance ( +<-> GND &
- <-> GND), must be < 2.5 μF. Install
an external transformer if necessary
► Please contact your installation tech-
nician or DELTA technical support
Insulation X ► Check the insulation of solar inputs
► Please contact your installation tech-
nician or DELTA technical support
HW Connected Fail X ► Please contact your installation tech-
nician or DELTA technical support
RCMU Fail X ► Please contact your installation tech-
nician or DELTA technical support
Relay Test Short X ► Please contact your installation tech-
nician or DELTA technical support
Relay Test Open X ► Please contact your installation tech-
nician or DELTA technical support
Bus Unbalance X ► Check the inputs connections
► Check the PV Array insulation
► Please contact your installation tech-
nician or DELTA technical support
HW Bus OVR X ► Check the inputs connections
► Check the PV Array insulation
► Please contact your installation tech-
nician or DELTA technical support
► Modify the solar array setting and
make the Voc less than 1000 Vdc
AC Current High X ► Please contact your installation tech-
nician or DELTA technical support if it
will not go back to normal operation
HW CT A Fail X ► Please contact your installation tech-
nician or DELTA technical support if it
will not go back to normal operation
HW CT B Fail X ► Please contact your installation tech-
nician or DELTA technical support if it
will not go back to normal operation