Commissioning the Inverter


Qualified person

Requirements:

  • A means of disconnecting the inverter from the PV array must be present.

  • The AC circuit breaker must be correctly rated and mounted.

  • The product must be correctly mounted.

  • All cables must be correctly connected.

Procedure:

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  1. Position the enclosure lid and first tighten the upper-left and lower-right screws, and then the remaining screws crosswise (TX25, torque: 6 Nm ± 0.3 Nm).
  2. Switch on the transformer.
  3. Switch on DC via the PV combiner box or the external DC switch.
  4. Switch on the AC miniature circuit breaker.
  5. All 3 LEDs light up. The start-up phase begins.
  6. All 3 LEDs go out again after approximately 90 seconds.
  7. Depending on the available power, the green LED pulses or is continuously illuminated. The inverter is feeding in.
  8. If the green LED is still flashing, the conditions for activating feed-in operation are not yet met. As soon as the conditions for feed-in operation are met, the inverter starts with feed-in operation and, depending on the available power, the green LED will light up continuously or it will pulse.
  9. If the red LED lights up, an event has occurred. Find out which event has occurred and, if necessary, initiate countermeasures.