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Installation guide for solar inverters RPI M6A M8A M10A EU V5 EN 2022-08-15
Basic Safety Instructions
NOTICE
Overheating of the DC connections.
Exceeding the maximum current can cause
the DC connections to overheat and catch
re.
► Always take the maximum current of
the DC connections into account when
planning the installation.
● To comply with IEC 62109-5.3.3 safety requirements
and avoid injury or material damage, the inverter
must be installed and operated in accordance with
the safety and operating instructions set out in this
manual. Delta Electronics is not responsible for
damage resulting from failure to follow the safety and
operating instructions set out in this manual.
● The inverter may be installed and commissioned only
by installers who have been trained and certied for
the installation and operation of mains-based solar
inverters.
● All repair work on the inverter must be carried out by
Delta Electronics. Otherwise the warranty will be void.
● Warning instructions and warning symbols attached
to the inverter by Delta Electronics must not be rem-
oved.
● The inverter has a high leakage current value. The
grounding cable must be connected before commis-
sioning.
● Do not disconnect any cables while the inverter is
under load due to risk of an arc fault.
● To prevent damage due to lightning strikes, follow the
provisions that apply in your country.
● The surface of the inverter can get very hot during
operation. Always wear safety gloves when touching
the inverter (except for the display).
● Only equipment that complies with SELV (EN 60950)
may be connected to the RS485 interfaces.
● All connections must be suciently sealed in order to
ensure the IP65 rating. Unused connections must be
closed using cover caps.
DANGER
Electric shock
Potentially fatal voltages are present in the
inverter during operation. When the inver-
ter is disconnected from all power sources,
this voltage remains in the inverter for up
to 60 seconds.
You should therefore always carry out
the following steps before working on the
inverter:
1. Turn the AC/DC disconnector 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
accidentally.
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 immedia-
tely 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 the AC/DC disconnector 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.
NOTICE
Damage caused by the solar system
being dimensioned incorrectly.
If the solar system is dimensioned incorre-
ctly, this may damage the inverter.
► Always take the technical specications
of the inverter (input voltage range,
maximum current and maximum input
power) into account when calculating
the number of solar modules.