7 Installation
Installation and Operating Manual for RPI M15A M20A Solar Inverter V1.0 2016-03-18
50
1
VCC (+12 V; 0.5 A)
2
GND
3
DATA+ (RS485)
4
DATA– (RS485)
5
DATA+ (RS485)
6
DATA– (RS485)
Terminal pair 3/4 or 5/6 may be used. The second terminal pair is
only needed if several inverters are connected with one another
via RS485.
Data format
Baud rate
9600, 19200, 38400; Default: 19200
Data bits
8
Stop bit
1
Parity
n/a
After commissioning, the baud rate can be set on the inverter
display, see “9.8 Baud rate for RS485”, page 86.
DIP switch for RS485 termination resistor
Fig. 7.3:
DIP switch for RS485 termination resistor
Connection to a Delta SOLIVIA Gateway M1 G2
Individual wires are connected at the inverter end; an RJ45 plug
is used at the Gateway end.
Inverter
SOLIVIA Gateway M1 G2
1
8
DATA+
Terminal 3 or 5
Pin 7
DATA–
Terminal 4 or 6
Pin 6 or 8
7.5 Connecting a data logger via RS485
The connections for RS485, the dry contacts and
the external power off (EPO) are all located on
the communications card. These installation tasks
can therefore be combined.
NOTE
Water ingress.
► All sealing caps that were removed during the
installation should be kept for future use (e.g.
transport or storage).
7.5.1 Introduction
3
1
2
4
Fig. 7.1:
Components on the communications card
1
DIP switch for RS485 termination resistor
2
RS485 (terminal block)
3
Dry contacts (terminal block)
4
External power off (RJ45)
Terminal assignment of the RS485 terminal block
Fig. 7.2:
Terminal assignment of the RS485 terminal block
