Data Check And Communication; Connection Through Rs-485 Serial Port Or Rj45 Connectors; Rs-485 Serial Port - Power One Aurora PVI-3.8/4.6-I-OUTD Installation And Operating Manual

Installation and operating manual
(PVI-3.8/4.6-I-OUTD Rev.: 1.5)
6

DATA CHECK AND COMMUNICATION

6.1

Connection through RS-485 serial port or RJ45 connectors

6.1.1

RS-485 serial port

The RS-485 serial port uses a three-wire cable: two for signals and a third for ground
connection. The cable should be passed through the holes located on the bottom of the
inverter, closed with airtight plugs (see Fig.
The supplied cable gland must be installed into the appropriate hole (replacing one of
the caps).
For ease of installation, the inverter is provided with two holes to differentiate the
input cable route from the output cable route when several units are connected in a
daisy chain as described below.
Once the cables have been passed through the cable gland, they are connected inside
the unit to the RS-485 terminal blocks which can be accessed by removing the front
cover. Refer to par. 3.4.2. for information on correct front cover removal and
reassembly.
The signal wires must be connected to the +T/R and –T/R terminals
The ground wire must be connected to the RTN terminal
Fig. 23 - Cable routing for RS-485 connection
RJ45 No.1
Fig. 24 - Terminals for connection to RS-485 and S2 switch
).
23
RJ45 No.2
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