Recommissioning the Inverter

Requirements:

  • All inverters must be correctly mounted.
  • The PV modules must be correctly mounted.
  • The circuit breaker must be correctly rated.
  • The Sunny Multigate must be correctly installed in the industrial enclosure.
  • The unused AC pin connector on the last inverter of the PV system must be sealed with a protective cap.
  • The AC cable of the utility grid must be correctly connected to the Sunny Multigate. All conductors must be connected in accordance with the terminal labels. No conductors must be swapped.

WARNING

Danger to life due to electric shock in case of installations without equipment grounding conductor

In case of installations without equipment grounding conductor, grounding of the inverters is ensured via the AC cable only. There is a risk of electric shock under fault conditions if PV modules are connected to the inverter and the connection to the grounding conductor via the Sunny Multigate-US is interrupted.

  1. Observe connection sequence.

Procedure:

  1. Connect the AC cables to the inverters ( > AC Cabling of the Inverters).
  2. Connect the first inverter to the Sunny Multigate ( > Connecting the First Inverter to the Sunny Multigate). All conductors must be connected in accordance with the terminal labels. No conductors must be swapped.
  3. Connect the PV modules to the inverters ( > Connecting the PV Modules to the Inverters).
  4. Remove the cover of the PV modules.
  5. Switch on the two-pole circuit breaker.
  6. Both LEDs on the Sunny Multigate are glowing green. Feed-in operation begins.

    7. The LED Inverter is off?

    There is a disturbance in the PV system.

    • Eliminate the disturbance ( > Troubleshooting). You will find the detailed error message in Sunny Portal or Sunny Explorer.

    The LED Inverter on the Sunny Multigate is glowing orange or red?

    There is a disturbance in at least one of the connected inverters.

    • Eliminate the disturbance ( > Troubleshooting). You will find the detailed error message in Sunny Portal or Sunny Explorer.

    The LED Multigate on the Sunny Multigate is glowing orange or red?

    There is a disturbance in the Sunny Multigate.

    <  Checking the PV System for Ground Faults
    >  Decommissioning