58
Cod.: 240.010.0042
DLS / DLS-C Series
The DLS system can operate with low voltage (LV) lithium-ion batteries. Batteries produce electricity and
can cause electric shock or re in the event of a short circuit or incorrect installation.
WARNING: Local regulations in force in the country of installation may require the installation of an ex-
ternal DC circuit breaker in addition to the automatic disconnector integrated in the DLS. The DC circuit
breakers must be properly rated for the + and - lines to guarantee the safe disconnection of the battery from
the inverter in case of maintenance.
The DLS is tted with a safety fuse against battery short-cir-
cuits. The fuse ratings are shown in the table below. In the
event of replacement, the fuse ratings must not be exceeded
in any way as this could cause electric shock or re in the
event of a short circuit. Refer to Figure 20 to locate the safety
fuse.
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 AC OUT 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 AC BYPASS switch is in the "1" position. In
this way the automatic battery switch is controlled and the battery lines are disconnected.
Use battery cables with cross-section of 16 mm
2
for DLS-C series and 25mm
2
for DLS series with a maxi-
mum length of 3 m per cable. Failure to comply with the following indications can lead to dangerous
overheating of the connection cables as well as non-compliance with the EMC standard require-
ments.
Use FTP or STP CAT5 cable with RJ45 connector for communication connections between the DLS system
and the battery with a maximum length of 3 m. Failure to comply with the following indications can
lead to dangerous malfunctions of the battery as well as non-compliance with the EMC standard
requirements.
1. Make sure the battery is turned off.
2. Connect the battery cables to the DLS respecting the indicated polarity (red for the positive terminal,
black for the negative terminal).
4. Connect an FTP or STP CAT5 cable between the spring terminal block (CAN) of the DLS and the BMS
communication connector (RJ45) of the battery. For the appropriate settings, refer to the "SYSTEM
PROGRAMMING" section, "BATTERY" paragraph.
5. Where required, connect the battery cables to the battery according to the manufacturer's instruc-tions
and using any connectors provided in the battery connection kit.
Batteries must be located in specic areas reserved for them, in compliance with local regulations.
During the wiring operations, isolate the battery poles to prevent short circuits. Shorted poles can cause
sparks, re hazard or damage to batteries.
The incorrect connection of the battery cables (polarity reversal) does not damage the DLS thanks to the
integrated protection, but disable the operation of the system until the correct polarity of the connection is
restored. The incorrect connection message is displayed on the LCD.
MODEL FUSE RATINGS
DLS series 100A 80Vdc
DLS-C series 60A 58Vdc
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