Never turn on any equipment when there is an evidence of fire, water or structural damage.
Instructions
•
Refer to the figure 3 below to identify the connection terminals of
the DLX inverter.
•
For safety reasons, an appropriately rated input load
disconnector (20 A) must be provided for each individual DLX
system. No load should be connected directly to the DLX inverter.
•
The protective earth conductor must have a cross-section at least
equal to or greater than the cross-section of the cables for
connection to the public grid (AC) and in any case in accordance
with the requirements of local regulations.
•
WARNING: Local regulations in force in the country of installation
may require the installation of an external additional DC
disconnector for the PV input lines and an external additional DC
breaker switch for the positive and negative lines of the battery.
Both devices must be rated according to the maximum voltage
and current values specified in the technical data specifications of
the DLX.
•
The DLX inverter is equipped with an external earthing contact
which must be connected to the protective conductor.
PV panels connection:
•
The DC disconnector of the PV input lines is integrated. The
disconnector of the battery lines is also integrated and automatic.
It is normally managed by the system control, but it can be
voluntarily controlled by turning the ON/OFF switch to the "0"
position in cases of maintenance/malfunction which require
disconnection of the battery from the system.
•
The voltage applied to each PV input channel of the DLX,
determined at the minimum rated temperature for operation,
must NEVER exceed 1000 V. Exceeding the limit can cause serious
damage to the DLX.
•
Refer to the connection diagram shown in Figure 5_A if the
system is based on two independent PV strings.
•
Refer to the connection diagram shown in Figure 5_B if the
system is based on a single PV string connected to a single PV1 or
PV2 input.
•
Refer to the connection diagram shown in Figure 5_C if the
system is based on a single PV string connected to both inputs
PV1 and PV2.
3. Electrical connections
AC grid and EPS Connections:
•
The power losses on the AC GRID line must be less than 1% of the rated
power.
•
The NEUTRAL conductor (N) of the EPS port is floating.
•
For safety reasons, the operation of the EPS port is disabled as per DLX
default factory setting.
•
Before starting the connection operations, make sure that the external AC
line main switch is disconnected and that the AC GRID and EPS circuit
breakers are disconnected.
•
Before starting the connection operations, make sure that the DC line switch
is off.
•
Before starting the connection operations, make sure that the ON/OFF switch
is in the "0" position.
•
Do not carry out other operations on the inverter for at least 10 minutes. The
inverter contains capacitors that need a minimum time to discharge.
•
Connect the phase (L1, L2, L3), neutral (N) and earth (PE) wires of the AC grid
input to the GRID terminal block respecting the correct assignment.
•
Connect the phase (L1, L2, L3), neutral (N) and earth (PE) wires of the EPS
output to the EPS terminal block respecting the correct assignment.
High Voltage Lithium-ion battery connection:
•
The default factory setting of the DLX is set to operate without any battery connected to the system.
•
Contact Delios sales representative to identify the supported batteries.
•
Local regulations in force in the country of installation may require the installation of an external DC
circuit breaker in addition to the automatic disconnector integrated in the DLX. The DC circuit breakers
must be properly rated for the + and - lines in order to guarantee the safe disconnection of the battery
from the inverter in case of maintenance.
•
The DLX is fitted with a safety fuse against battery short-circuits. The fuse is 30 A 1000 Vdc gPV rated.
In the event of replacement, the fuse ratings must not be exceeded in any way as this could cause
electric shock or fire in the event of a short circuit.
•
Before starting the connection operations, make sure that the battery cables are disconnected from
the battery and that the poles are insulated to prevent short circuits.
•
Before starting the connection operations, make sure that the AC GRID and EPS circuit breakers are
disconnected.
•
Before starting the connection operations, make sure that the internal DC line switch is disconnected.
•
Before starting the connection operations, make sure that the ON/OFF switch is in the "0" position.
•
Use battery cables with cross-section of 6 mm² and with a maximum length of 3 m per cable.
•
Use the quick connectors supplied to connect the cables to the battery inputs of the DLX.
Figure 3
Figure 4
Delios DLX 500HV/600HV/800HV/1000HV
Quick Start Guide
Figure 5_A
DELIOS
–
DLX Hybrid Inverter System
–
Mar. 2022
© 2022 Delios - All Rights Reserved
Figure 5_B
Figure 5_C
1 - ON/OFF switch
2 - DC switch
3 - PV1 string input
4 - PV2 string input
5 - BATTERY input
6 - AC GRID output
7 - EPS output
8 - ENERGY METER and BATTERY BMS wiring input
9 - LAN and AUX wiring input
10 - CAN wiring input
1 - AC GRID input
2 - EPS (Emergency Power Supply) output
3 - ENERGY METER
4 - AC LINE ciruit breaker
5 - AC GRID circuit breaker (
20A max
)
6 - EPS line circuit breaker (
20A max
)
7 - BATTERY DC circuit breaker (*)
8 - HV Li-ION BATTERY
9 - EXTERNAL INTERLOCK SYSTEM
10 - PRIVILEGED loads
11 - HOME loads
(*) Where required by local regulation
DLX must be installed only by a qualified personnel.
During installation, unplug DLX. Read and understand the safety warnings prior to installation.
Prior to the installation it is required to download (www.delios-srl.it/download-dlx-hv),
read, understand the step by step instructions from the latest DLX installation manual.
