9.
Error events and troubleshooting
DANGER
Electric shock
Potentially fatal voltages are present in the
inverter during operation. When the inverter
is disconnected from all power sources, this
voltage remains in the inverter for up to 60
seconds.
You should therefore always carry out the fol-
lowing steps before working on the inverter:
1. Turn both DC disconnectores to the
OFF
position.
2. Disconnect the inverter from all AC and DC
voltage sources and make sure that none
of the connections can be restored acciden-
tally.
3. Wait at least 60 seconds for the internal
capacitors to discharge.
DANGER
Electric shock
Potentially fatal voltages are present at the DC
connections of the inverter. When light falls on
the solar modules, they immediately start to
generate electricity. This also happens when
light does not fall directly on the solar modules.
►
Never disconnect the inverter from the solar
modules when it is under load.
►
Turn both DC disconnectores to the
OFF
position.
►
Disconnect the connection to the grid so that
the inverter cannot feed energy into the grid.
►
Disconnect the inverter from all AC and DC
voltage sources. Make sure that none of the
connections can be restored accidentally.
►
Ensure that the DC cables cannot be
touched accidentally.
WARNING
Electric shock
If the doors of the inverter are open, the IP65
degree of protection is no longer guaranteed.
►
Only open the door when absolutely neces-
sary.
►
Do not open the door if water or dirt might
enter the inverter.
►
After work is completed, ensure that the
door is properly shut and tightened again.
Check that the door is properly sealed.
WARNING
Heavy weight
The inverter is heavy.
►
The inverter must be lifted and carried by at
least two people.
WARNING
Hot surfaces
The surface of the inverter can get very hot dur-
ing operation.
●
Always wear safety gloves when touching
the inverter.
To read error messages or change parameter
settings, you need the Delta Service Software
(DSS) or the MyDeltaSolar app.
88
Installation and operation manual M70A_260 Flex RPI703M26000 EU V1.1 EN 2022-08-02
9 Error events and troubleshooting
