Delios DLS 300 - Home Loads Line and Privileged Loads Line Connection

56
Cod.: 240.010.0042
DLS / DLS-C Series
Connect the phase (L), neutral (N) and earth (PE) wires of the home loads line or the privileged loads line
to the AC OUT terminal block respecting the correct assignment:
• Phase (L) → L Terminal (GREY)
• Neutral (N) → N Terminal (BLUE)
• Earth (PE) → PE Terminal (YELLOW/GREEN)
If the presence of an energy meter for the produced energy is not required, connect directly by a wire
bridge the AC OUT Phase (L) and Neutral (N) terminal block and the GRID OUT Phase (L) and Neutral (N)
terminal block respectively, making sure to comply with the correct assignment previously reported.
Where required by local regulations or by the grid operator, it may be necessary to connect an ener-
gy meter to the DLS to detect the energy produced by the plant. In this case, connect the Phase (L)
and Neutral (N) measuring terminals of the energy meter to the AC OUT terminal block respecting the
correct assignment:
• Phase (L) → L Terminal (GREY)
• Neutral (N) → N Terminal (BLUE)
Next, connect the Phase (L) and Neutral (N) supply terminals of the energy meter to the GRID OUT ter-
minal block respecting the correct assignment above. Further, connect the home loads line or the privileged
loads line to the GRID OUT terminal block respecting the correct assignment:
• Fase (L) → Morsetto L (GRIGIO)
• Neutro (N) → Morsetto N (BLU)
Be careful not to reverse the phases with the neutral. If this happens, the system may present malfunctions.
In this case, the DLS detects the fault by disabling the operation and signaling the problem with a specic
alarm code.
5.4 Home Loads Line and Privileged Loads Line connection
See the connection instructions shown in Figura 04-05-06-07-08.
WARNING: Make sure to comply with the local regulations to set up an auxiliary off-grid power supply sy-
stem in case of a power outage.
WARNING: The power supply system of the loads connected to the AC OUT port for off-grid operation
relies on an internal interlocking system that automatically disconnect the part of the system com-
posed by the DLS and the loads connected to it from the distribution network.
WARNING: For safety reason, the operation of the internal interlock system in EPS mode is disa-
bled as per DLS default factory setting. The enabling and use of the automatic interlocking system
must take place in accordance with the regulations in force in the country of installation. To enable
the operation of the AC OUT port in EPS mode, it is necessary to access the "SETTINGS" conguration
menu in INSTALLER mode, access the "SYSTEM" menu and select "ON" in the "EPS" menu. Refer to the
SYSTEM PROGRAMMING section.
WARNING: The NEUTRAL (N) conductor of the AC OUT port, during operation in EPS or SMART IS-
LAND mode, is automatically tied to the earth potential and this guarantees the correct functioning of
the protection systems against direct discharge provided for the home loads line or for the privileged loads
line and placed downstream of the inverter. For installations where the local legislation in force provides that
the conductor of NEUTRAL (N) is not connected to the ground potential, it is necessary to disable the
automatic connection of the NEUTRAL (N) to the earth potential. (Setting accessible only in "INSTALLER"
mode with password authentication. Refer to the SYSTEM PROGRAMMING section.).