Connecting signal source to DI 1-4

Qualified person

Additionally required material:

  • Conduit (trade size: 27 mm (1 in) or smaller with suitable reducer bush)

  • Sealing compound for sealing the join between the conduit and inverter if a weep hole has been added to the conduit

  • Rain-tight conduit fittings or conduit fittings for wet locations complying with UL 514B (trade size: 27 mm (1 in) or smaller with suitable reducing bush)

Procedure:

  1. Connect the connection cable to the digital signal source (see the manual from manufacturer).
  2. Disconnect the inverter from all voltage sources ( > Disconnecting the Inverter from Voltage Sources).
  3. Remove the filler plug from the enclosure opening which is located at the bottom of the inverter.
  4. Insert the conduit fitting into the opening and tighten from the inside using the counter nut.
  5. Attach the conduit to the conduit fitting.
  6. Guide the conductors from the conduit into the inverter.
  7. Strip the insulation off the conductor 6 mm (0.24 in).
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  8. Release the conductor entries on the supplied five-pole connector.
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  9. Connect the conductors of the connection cable to the supplied five-pole connector. To do so, plug the conductors into the conductor entries and close the conductor entries. Observe the connector assignment.
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  10. Plug the five-pole connector into the socket DI 1-4 on the product. Observe the pin assignment.
  11. Ensure that the connector is securely in place.
  12. Ensure that all conductors are correctly connected.
  13. Ensure that the conductors sit securely in the terminal points.
  14. If a weep hole has been added to the conduit, seal the conduit with sealing compound.

    Also see:

    Digital input DI 1-4
    Connection to digital input DI 5-6