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Identificazione: MD-AL-GI-00
Rev. 4.0 del 31.01.18 - Applicazione: GID
Manual of 07/06/2019 Rev. 2.1 “User Manual for 3K-6KTLM LITE
Note
Depending on the type of inverter, select the appropriate inverter accessories (cables, fuse holder, fuse,
switch, etc). The open-circuit voltage of the photovoltaic system must be lower than the maximum DC input
voltage of the inverter. The output voltage of the strings must be compatible with the MPPT voltage range.
The positive and negative poles of the panel on the inverter must be connected separately. The power cable
must be suitable for photovoltaic applications.
Note
Both MPPT inputs of the inverter should be populated, even if the system only has one string. If the strings
are arranged in parallel, it is recommended to use a Y or T connection cable to double the input currents
from the PV field and to populate both MPPT inputs of the inverter, as shown in the figure. If the string
arrangement is independent, simply connect the two strings to the two MPPTs of the inverter.
Figure 17 – Y-branch connection cable for solar panels
Make sure that the following information is observed. Otherwise, there is a risk of
fire.
The modules connected in series in each string must have the same
specifications.
The open-circuit voltage for each string must be less than or equal to 600
VDC.
The output power for each PV string must be less than or equal to the
maximum input power allowable for 3K-6K TLM-L inverters.
The positive and negative terminals of the PV strings must be connected
respectively to the positive and negative inputs of the input terminal block.
Attention
Before connecting the power supply, be sure to disconnect the generator’s
DC switch. When exposed to the sun, the photovoltaic generator produces a
voltage that can be dangerous!
Before connecting the power supply, make sure that the voltage of the DC
cables is within the permissible operating range, and that the DC circuit
breaker switch is open. Otherwise, the high voltage may cause serious
damage.
Danger
Check the polarity of the PV string to ensure the correct connection of the cables
to the string.
Be sure not to connect the positive or negative pole of the PV string to the
ground.
Note
