IV431E REV. 00 Issued: 2020/11/16 User Manual Soleil SPX 200K-250K
Pag. 45 of 76 +FR
If the DC input wires are reverse connected by accident and the "DC SWITCH" have been set to the
"ON", do not immediately operate the "DC SWITCH" and the positive and negative connectors, or, it
may cause inverter damage. The resulted inverter damage is not covered by warranty. It needs to wait
until night when the solar irradiance decreases and the PV string current drops below 0.5A, then place
the corresponding "DC SWITCH" to "OFF" position, remove the positive and negative connectors and
correct the polarity of the PV string.
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Before connecting the PV string to the inverter, ensure that the PV string is well insulated from
ground.
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When installing, use the DC terminals and PV connectors in the accessories, or the inverter will be
damaged. If they are lost or damaged by accident, please purchase the same type of PV connector.
Inverter damage caused by the using incompatible PV connectors is not covered by the warranty.
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Disconnect the DC switches before connecting the PV string.
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Make sure that the positive and negative poles of the PV string and the inverter are correctly
connected.
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Ensure that the DC input voltage is less than 1500Vdc, and the maximum short-circuit current of
the PV string is within the allowable range of the inverter.
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It is strictly prohibited to connect the positive and negative poles of PV string to ground, or it will
cause damage to the inverter.
Use the PV connectors and terminals in the accessories for DC input wiring. There are two types of PV
connectors: positive and negative connectors, which respectively use positive metal terminals and
negative metal terminals. The specific steps are as follows.
Connect PV connectors
Step 1
Use a wire stripper to strip the insulation layer of the positive and negative cables by 7mm, as shown
in Figure3-35.
