Connecting the connections to the automatic transfer switching device

15705524364

Circuitry overview with Main Panel

Requirement:

  • The lid of the automatic transfer switching device has been opened or removed.

  • The installation cover of the automatic transfer switching device has been removed.

Procedure:

  1. Disconnect the inverter from all voltage sources. See inverter manual.
  2. Disconnect the AC fuse.
    3. 14887435532
  3. Connect the PE of the utility grid to the lower connection on the automatic transfer switching device. To do this, unlock the terminal with a flat-blade screwdriver (5.5 mm).
    4. 15635909516
  4. Connect the PE from the inverter to the upper connection on the automatic transfer switching device. To do this, unlock the terminal with a flat-blade screwdriver (5.5 mm).
    5. 15288307212
  5. Connect L2 to the utility grid at the GRID L2 terminal on the automatic transfer switching device, as labeled. To do this, unlock the terminals with a flat-blade screwdriver (5.5 mm).
    6. 14887435916
  6. Connect L1 to the utility grid at the GRID L1 terminal on the automatic transfer switching device, as labeled. To do this, unlock the terminals with a flat-blade screwdriver (5.5 mm).
    7. 15288307596
  7. Connect conductor L2 for the backup loads to the INV L2 terminal on the automatic transfer switching device. To do this, unlock the terminals with a flat-blade screwdriver (5.5 mm).
    8. 14887436300
  8. Connect conductor L1 for the backup loads to the INV L1 terminal on the automatic transfer switching device. To do this, unlock the terminals with a flat-blade screwdriver (5.5 mm).
    9. 14887436684
  9. Connect the SPS OUT AC cable to L and N on the automatic transfer switching device, as labeled. To do this, unlock the terminals with a flat-blade screwdriver (3.5 mm).
    10. 14887553932
  10. Connect the AC cable SPS IN to 1 and 2, as labeled. To do this, unlock the terminals with a flat-blade screwdriver (3.5 mm).
    11. 15635943564
  11. Connect the conductor N of the utility grid to the terminal block of the automatic transfer switching device.
    12. 15635943948
  12. Connect the conductor N of the inverter to the terminal block of the automatic transfer switching device.
    13. 15635982732
  13. Connect the conductor L for the loads to the automatic transfer switching device.
    14. 15907414156
  14. Ensure that the pre-fuse of the monitoring relay is switched on.
  15. Tug lightly to ensure that all conductors are secured in the terminals.

    Also see:

    Removing the grounding conductor connection on the inverter
    Operation