Nibe EME 20 - Inverter and Accessory Connections (F-Series); RS-485 Communication with Inverter (F-Series); Modbus RTU Settings (F-Series); External Accessory Connection

CONNECTING TO INVERTER
RS-485 - COMMUNICATION
Connect the cables to the converter according to the
diagram below.
NOTE
The front cover on the inverter must not be
opened. Connection must take place via the
intended communication input under the invert-
er. Use the enclosed terminal block supplied
with the inverter. Note how the cables are
connected in the terminal block!
2
1
1
2
3
4
5
6
4
5
6
1
2
3
PVI 30-20
PVI 10-3
PVI 20-XX
PVI 10/20
FunctionConnection
RS485 + (B)1
RS485 - (A)2
Not used3
Not used4
RS485 + (B)5
RS485 - (A)6
PVI 30
FunctionConnection
RS485 + (B)1
RS485 + (B)2
RS485 - (A)3
RS485 - (A)4
Not used5
Not used6
Modbus RTU
Settings for other inverters supporting SunSpec with
Modbus RTU.
Baudrate: 9,600
Data bits: 8
Stop bits: 1
Parity: None
CONNECTION
Externt tillbehör ex. Modbus, SMS
On the NIBE product, the communication cable must
be connected according to the diagram for each product,
and on terminal block AA23:1-4 on the EME 20 board.
Terminal block AA23:9-10 on the EME 20 board is con-
nected to terminal block 1-2 on the inverter.
External accessories must be connected according to
the diagram, and on terminal block 5-8 on the EME 20
board.
1 2
1 2 3 4 5 6 7 8 9 10 11
GND
B A
12V
GND
B
A
12V
Inverter
EME20
NIBE heat pump/indoor module/control module
Accessories
AA23
SMO 20
On SMO 20, the cable with pre-installed connectors
(part no. 718,576, length 3 m) must be connected to
socket X8 on the display unit and to the terminal block
AA23:1-4 on EME 20.
Terminal block AA23:9-10 on the EME 20 board is con-
nected to terminal block 1-2 on the inverter.
EME 20 F-series | GB36
F