Installation manual

7. Installation

Operation and Installation Manual for SOLIVIA 2.0/2.5/3.0/3.3/3.6/5.0 EU G4 TR

7.4.4 Grounding DC Side

The solar inverter can be grounded at either the DC+ side or the

DC- side. The ground connection must be installed near the solar

inverter. We recommend using the grounding kit from Delta.

The DC side of the solar inverter has an insulation and grounding

monitor. Monitoring can be congured in the 230 Grounding menu,

see “10.13 Insulation and grounding monitoring”, p. 61.

► Install the ground kit according to the manual delivered with

the kit.

7.5 Connecting RS485 (EIA485) - Optional

ATTENTION

To ensure IP65 protection, all unused connec-

tions and interfaces must be closed using the

covers on the solar inverter.

Only the cables described below may be used.

Standard cables are not permitted.

7.5.1 General Instructions

One or more solar inverters can be connected to a monitoring sys-

tem using the RS485 interfaces (see Fig. 7.9, p. 32).

Fig. 7.9: Location of RS485 connection

The two RS485 interfaces are internally wired 1:1. Each RS485

interface can be used as an input or output.

If multiple solar inverters are connected to a monitoring system

using the RS485, a separate RS485 ID must be congured for

each solar inverter.

The RS485 ID can be set during commissioning (see Fig. 7.1,

p. 24) or later during operation (see “10.6 RS485 (EIA485) Set-

tings”, p. 54).

A termination resistor must be connected to the last solar inverter,

see Fig. 7.11, p. 33.

Pin Assignments

Pin Assignment

8 1

1 Reserved

2 Reserved

3 Reserved

4 GND

5 Reserved

6 Reserved

7 TX_A

8 RX_B