Delios DLS 300, Инструкция по эксплуатации

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DLS 300 / 450 / 600
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Code 240.010.0001
3.2.5 AC BYPASS Switch
In the event of system maintenance and/or faults, the AC BYPASS switch located on the DLS allows the
safety system to be switched off and disconnected both from the national grid and the residential system
it is connected to. When enabled, the AC BYPASS switch, as well as disconnecting the DLS, reconnects
the residential to the national grid, thus ensuring power supply continuity even in the event of a converter
failure.
3.2.6 AC GRID and GEN Inputs Magnetic Thermal Circuit Breaker (optional)
The DLS system AC GRID and GEN inputs (optional) are fitted with a two-pole 32A 1P+N 4.5kA magnetic
thermal circuit breaker to protect and isolate the AC lines in question.
3.2.7 AC OUT Output Magnetic Thermal Circuit Breaker
The DLS system AC OUT output is fitted with a two-pole 32A 1P+N 4.5kA magnetic thermal circuit breaker
to protect and isolate the AC line in question.
3.2.8 DC Inputs String Switch
The DLS system PV1 and PV2 PV field inputs are fitted with a dual two-pole switch to isolate the DC lines
in question.
3.2.9 String Fuses
Should it be necessary, we recommend the installation of field panels containing string fuses, whose size
must be carefully assessed during the installation stage.
3.2.10 Battery Galvanic Isolation
In order to ensure maximum safety, reliability and high efficiency, the DLS system is fitted with an innova -
tive DC-DC conversion stage between the battery and the AC output with high frequency galvanic isolation.
Thanks to the safety isolation ensured by the conversion stage, the battery negative pole is directly con-
nected to the protective earth conductor and therefore the voltages at the battery terminals can be classified
as SELV (Safety Extra Low Voltage).
3.2.11 Battery Overcurrent Protective and Safety Fuse
The battery input is electronically protected from overcurrents. In the event of an interval failure in the moni-
toring system, the battery input is protected by a safety fuse (100A 80V)
3.2.12 Battery Temperature Sensor
A battery temperature sensor is installed on the 48V lead-acid batteries. The DLS system uses the sensor
signal to optimize the charge of the batteries. Should the batteries overheat, the DLS system will automati-
cally stop their operation. The correct settings can be made through the advanced settings in the control
panel.
3.2.13 Automatic Battery Switch
The DLS system is fitted with a battery isolating switch which ensures the correct connection/disconnec -
tion operations and the battery operation. When the system detects a faulty operation and when the AC
BYPASS switch is enabled for maintenance purposes or in the event of a fault, the isolating switch is au-
tomatically enabled and the battery is safely disconnected from the system. In these conditions, a battery
maintenance operation can be carried out.
3.2.14 Additional Protective Devices
The DLS system is fitted with additional protective devices which ensure the safe operation in different
operating conditions:
• Ongoing operating temperature monitoring and automatic power reducer in case of abnormal operat -
ing conditions or outside the limits allowed in order to prevent the system from overheating.
• Protective device against PV polarity inversions.