NOTICE:
Note 1: The recommended fuse values are configured based on the
condition that the input strings are the same (module type and
length).
Note 2: The temperature rating of the fuse holder terminals is (90°C).
3.3.3.3 DC Conductor Connection
To ensure the optimum performance of the inverter, please read the
following guidelines before performing any DC connections.
1. Confirm the maximum open circuit voltage of the PV modules is lower
than 1000VDC under any conditions.
2. Confirm that the PV modules for each MPPT within the inverter are of
the same type and specification before connection.
3. Ensure correct polarity of the PV Strings before terminating the DC
source circuits within the wire box.
Referring to Figure 3-2, the wiring from the PV string pairs must be
checked according to the following steps:
(a) Use a multi-meter to measure the PV strings’ conductor ends
and check the polarity.
(b) The positive (+) terminal of the conductor should match the
positive (+) terminal of inverter’s DC input.
(c) The negative (-) terminal of the conductor should match the
negative (-) terminal of inverter’s DC input.
NOTICE:
It is important to use a multi-meter to check the polarity of the DC
source circuit conductors to avoid any risk of reverse polarity.
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