Ingeteam INGECON SUN 3Play Série Manuel D'installation page 124

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11. Check that at least one of the unit's display LED blinks. Otherwise, check the wiring polarity (in the
inverter and in the string box), turn the DC switch OFF and fix it.
12. Turn the DC switch to OFF.
13. In TL M units, disconnect the string 1 wiring on the MPPT1 in the string box.
14. On TL M units, repeat steps 9 to 12, with the MPPT2 string 1.
15. Connect the remaining stings according to the polarities.
124 ABO2011IQM01_A - Installation and Operation Manual
DC connection