2 Basic safety instructions
Installation and Operating Manual for RPI M15A M20A Solar Inverter V1.0 2016-03-18
8
2. Basic safety instructions
● In order to meet the safety requirements of IEC 62109-5.3.3
and to avoid personal injury and material damage, the in-
verter must be installed and operated in accordance with the
safety instructions and work instructions in this manual. Delta
Energy Systems is not liable for damage arising from non-
compliance with the safety instructions and work instructions
in this manual.
● The inverter may only be installed and commissioned by
fitters who are trained and approved in the installation and
commissioning of grid-connected solar inverters.
● All repairs to the inverter must be carried out by Delta Energy
Systems. Otherwise the guarantee will be void.
● Warning notices and warning symbols that have been at-
tached to the inverter by Delta Energy Systems must not be
removed.
● The inverter has a high leakage current. The grounding cable
must
be connected before putting the inverter into operation.
● Do not disconnect any cables when the inverter is under
load, as there is a risk of arcing.
● To prevent damage caused by lightning strikes, observe the
regulations that are applicable in your country.
● The surface of the inverter can become very hot in operation.
Do not touch any part of the inverter except for the display
unless you are wearing safety gloves.
● The inverter is very heavy. The inverter must be lifted and
carried by at least two people.
● Only SELV-compliant (EN 60950) devices may be connected
to the RS485 ports.
● To ensure protection class IP65, all connections must be
adequately sealed. Unused connectors must be sealed with
cover caps.
DANGER
Electric shock
During operation there is a potentially lethal volt-
age present inside the inverter. Even after the
inverter has been disconnected from all power
sources, this voltage is present in the inverter for
up to a further 80 seconds.
Therefore always perform the following work
steps before working on the inverter
1.
Turn the DC disconnector to the
OFF
posi-
tion.
2.
Disconnect the inverter from all AC and DC
sources and make sure that none of the con-
nections can be inadvertently re-established.
3.
Wait at least 80 seconds to allow the internal
capacitors to discharge.
DANGER
Electric shock
There is a potentially lethal voltage present
on the DC terminals of the inverter. The solar
modules start to produce current as soon as light
falls on them. This occurs even if the light is not
falling directly on the solar modules.
► Never disconnect the inverter from the solar
modules when it is under load.
► Turn the DC disconnector to the
OFF
posi-
tion.
► Disconnect the connection to the grid so that
the inverter cannot supply any energy to it.
► Disconnect the inverter from all AC and DC
sources. Make sure that none of the connec-
tions can be inadvertently re-established.
► Protect the DC cables from being inadvert-
ently touched.
