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Set the multimeter to DC gear to measure the voltage at the DC position. If the voltage is a negative value, the PV input polarity
is incorrect and needs correction. If the voltage is greater than 1000 V, too many PV modules are configured to the same string.
Remove some PV modules.
If the PV input cable is reversely connected and the PV SWITCH is set to ON, first set the PV SWITCH to the OFF position, then remove
the positive and negative connectors, and correct the polarities of the PV input cables.
×1
A9
• Before removing the positive and negative connectors, ensure that the PV SWITCH is OFF.
PV1
PV2
A9
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