18
Quick Installation Guide for Solar Power Inverter M50A_12s EU V4 EN 2018-10-24
The connections for RS485, the dry contacts, the
digital inputs and the external shutdown (EPO)
are all on the communications card This means
that the installation work can be combined
3
1
2
4
5
1
2 x dry contacts (terminal box)
2
DIP switch for RS485 termination resistor and VCC
3
Digital inputs and external power-off (terminal block)
4
RS485 (terminal block)
5
Protection against electromagnetic interference (EMI)
Terminal pairs 3/4 or 5/6 can be used It doesn't matter which
terminal pair is used The second terminal pair is only required
when connecting several inverters via RS485
RS485 terminal block
1
2
3
4
5
6
1
VCC (+12 V; 0 5 A)
2
GND
3
DATA+ (RS485)
4
DATA– (RS485)
5
DATA+ (RS485)
6
DATA– (RS485)
The baud rate can be set on the inverter display after commis-
sioning, see”Baud rate for RS485”, page 24
Data format
Baud rate
9600, 19200, 38400; standard: 19200
Data bits
8
Stop bit
1
Parity
Not applicable
DIP switch for RS485 termination resistor and VCC
1
VCC (+12 V; 0 5 A)
2
RS485 termination resistor
Connecting a data logger via RS485
