Solare-datensysteme Solar-Log Manual de usuario descargar pdf (Pagina 284)

284

Vaillant

Vaillant – auroPOWER VPI /1 and VPI (RS485)

Connect the inverters to each other

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Connect using a 2 wire, shielded data cable

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Where to connect: Terminal strip inside the inverter

The RS485 connections on the terminal strip are each double connections so that the wiring can be con-

tinued to the next inverter.

Procedure

1. Open the inverter as shown in the inverter's instructions.

2. Connect terminal A on inverter 1 to terminal A on inverter 2.

3. Connect the other inverters to each other in the same way.

4. Terminate in the last inverter. In the inverter connect the free terminal A to terminal B using the

supplied 330 Ω terminating resistor.

Devices without a transformer: From unit generation VPI xx00 /2 the 330 Ω resistor is switched on

using the DIP switch. When the unit is delivered the terminal resistor is switched on.

5. Close inverters.

Allocate communication address

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Recommendation: Continuous numbering starting with 1.

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Setting:

Units without transformers: using the DIP switch inside the inverter

Units with transformers: using the inverter operating display.

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Procedure: Start according to the inverter's instructions

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Solare-datensysteme Solar-Log Manual de usuario Pagina 284