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Installation and Operation Manual for Inverter RPI M50A_12s V1 EU EN 2017-03-09
2 Basic safety instructions
2.
Basic safety instructions
DANGER
Electrical shock
Potentially fatal voltage is applied to the inverter
during operation. When the inverter is discon-
nected from all power sources, this voltage
remains in the inverter for up to 10 seconds.
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 accidentally
restored.
3. Wait for at least 10 seconds until the internal
capacitors have discharged.
DANGER
Electrical shock
Potentially fatal voltage is present at the invert-
er's DC connections. 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 the AC/DC disconnector to the
OFF
position.
► Disconnect the connection to the grid so that
the inverter cannot supply energy to the grid.
► Disconnect the inverter from all AC and DC
voltage sources. Ensure that none of the
connections can be restored accidentally.
► Ensure that the DC cables cannot be touched
accidentally.
WARNING
Electrical shock
When the cover is removed from the fuse box,
this exposes live parts and protection conforming
to IP65 is no longer guaranteed.
► Remove the cover only when it is absolutely
necessary.
► Do not remove the cover if water might enter
the inverter.
► After work is completed, ensure that the
cover is properly replaced and screwed in.
Check that the cover is properly sealed.
WARNING
Heavy weight
The inverter is very heavy.
► The inverter must be lifted and carried by
at least 3 people or using appropriate lifting
gear.
● To comply with the 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 Energy
Systems is not responsible for damage resulting from failure
to follow the safety and operating instructions set out in this
manual.
● The inverter may only be installed and commissioned by
installers who have been trained and certified for the installa-
tion and operation of grid-based solar inverters.
● All repair work on the inverter must be carried out by Delta
Energy Systems. Otherwise, the warranty will be void.
● Warning instructions and warning symbols attached to the
inverter by Delta Energy Systems must not be removed.
● The inverter has a high leakage current value. The grounding
cable
must
be connected before commencing operation.
● Do not disconnect any cables while the inverter is under load
due to risk of a fault arc.
● To prevent damage due to lightning strikes, follow the provi-
sions that apply in your country.
● The surface of the inverter can get very hot during operation.
Only touch the inverter (outside of the display) with safety
gloves.
● Only equipment in accordance with SELV (EN 60950) may
be connected to the RS485 interfaces.
● All connections must be sufficiently insulated in order to en-
sure the IP65 protection degree. Unused connections must
be closed using cover caps.