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06 Electrical ConnectionUser Manual V1.1-2022-12-20
6.4 Connecting the DC Input Cable (PV)
DANGER
• Do not connect one PV string to more than one inverter at the same time. Otherwise, it may
cause damage to the inverter.
• Conrm the following information before connecting the PV string to the inverter. Otherwise,
the inverter may be damaged permanently or even cause re and cause personal and
property losses.
1. Make sure that the max short circuit current and the max input voltage per MPPT are
within the permissible range.
2. Make sure that the positive pole of the PV string connects to PV+ of the inverter. And the
negative pole of the PV string connects to PV- of the inverter.
WARNING
• The PV strings cannot be grounded. Ensure the minimum insulation resistance of the
PV string to the ground meets the minimum insulation resistance requirements before
connecting the PV string to the inverter (R=maximum input voltage/ 30mA).
• Ensure the DC cables are connected tightly, securely and correctly.
• Measure the DC cables using a multimeter to avoid reverse polarity connection. Also, the
voltage should be under the permissible range.
NOTICE
Only for hybrid inverters.
PV1+
PV1-
PV2+
PV2-
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