Delios DLS 300 - SMART ISLAND Mode

DLS / DLS-C Series
43
Cod.: 240.010.0042
3.2.6 "SMART ISLAND" Mode
In case of no connection to the public network, this mode of operation allows to create an off-grid network
(AC OUT) to power the loads. This operating mode involves the use of an auxiliary motor generator that
may be automatically controlled by the control system (OPTIONAL) of the inverter itself to make up for the
lack of energy. This operating mode requires the presence of the battery.
In the presence of sunshine, the energy from the photovoltaic eld is
used primarily to supply the domestic loads and secondly to charge the
battery. If the energy required by the loads is high and the available
energy from photovoltaic eld and battery is not enough, the missing part
is drawn from the battery. In the absence of photovoltaic production, the
energy required by the loads will be totally supplied by the battery. If the
energy required by the loads is such as to discharge the battery below
a set threshold, the auxiliary motor generator is activated by means of a
command (OPTIONAL) coming from the inverter. The energy supplied
by the motor generator is used to supply the loads and to recharge the
battery up to a set threshold at which the motor generator is deactivated
by means of the same command coming from the inverter.
WARNING: To preserve the health of the battery, the automatic enabling of the AC OUT port occurs only
if the state of charge is greater than or equal to the value set for the parameter "SOC START CH" in the
"SMART ISLAND SETUP" conguration menu. Below this value the inverter mode will enable the igni-
tion of the external motor generator to power the loads and simultaneously recharge the battery.
The motor generator will then be deactivated upon reaching the charge state value set for the parameter
"SOC STOP CH" in the "SMART ISLAND SETUP" conguration menu.
WARNING: In case of absence or malfunction of the auxiliary motor generator, the "SMART ISLAND"
mode is automatically terminated if, during discharge, the battery status reaches the minimum value equal
to the value set for the "SOC START CH" parameter in the "SMART ISLAND SETUP" conguration menu.
It is automatically restored if the solar energy from the panels is enough to charge the battery to a state of
charge greater than or equal to the value set for the parameter "SOC STOP CH" in the conguration menu
"SMART ISLAND SETUP".
WARNING: The auxiliary motor generator must be electronically stabilized and correctly sized to meet
the loads and battery charge power demand. The ratings of the motor generator must be compatible with
the limits of use reported in the inverter and loads technical data. The use of a not suitable motor gene-
rator can compromise the correct functioning of the system, cause damage to the loads connected
to it and lead to situations of potential danger relieving DELIOS s.r.l. from any liability as well as
invalidating the warranty terms.
WARNING: The total power of the loads connected to the AC OUT output must be within the range
specied in the technical data. If the total load is higher, the DLS will enter in protection mode, disabling
the output power and signaling the overload event. After a few seconds it will attempt to restore the regular
operation of the AC OUT port. This restart mode will continue until the total load connected to the AC OUT
port is compatible with the maximum ratings specied in the technical data. It is therefore recommended to
connect only essential loads to the AC OUT port.
WARNING: In SMART ISLAND mode, some loads may not work properly even if their total rated power is
within the limits specied in the technical data. This can happen because the inrush currents could be too
high (refrigerators, air conditioners, hydraulic pumps, etc.). In these cases, the DLS hybrid inverter will enter
in protection mode, disabling the output power and signaling the overload event. After a few seconds it will
attempt to restore the regular operation of the AC OUT port. This restart mode will continue until the total
load connected to the AC OUT port is compatible with the maximum ratings specied in the technical data.
It is therefore recommended to connect only essential loads to the AC OUT port.