Nibe MODBUS 40 Installateurhandbuch Seite 12

GB
F750
LEK
VVM500
VVM 500
F1345
Terminal block X1 on the Modbus card (AA9) in MODBUS
40 is connected to terminal block X6:4-7 on terminal
block (X6) in the heat pump.
Use cable type LiYY, EKKX or similar.
F1345
12
12
7 8 9 10 11 13
F1245
SMS 40
GND B A 12V
7 8 9 10 11 12 13
F1245
SMS 40
GND B A 12V
4 5 6 7
F1345
Externt
GND B A 12V
Connecting to Modbus master
The external Modbus master is connected to terminal
block X2 on the Modbus card (AA9).
NOTE
MODBUS 40 uses the communications standard
RS485.
Connect the master with a cable according to
the recommendations for RS485.
MODBUS 40
GND
B
A
EXTERNT