Sime ALU HE, Инструкция для пользователя, по установке и обслуживанию

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69
EN
4.11.1 RS 485 board
The RS485 board is provided as standard and is factory installed on every boiler.
It is needed for the
boilers to communicate with one another
, when they are installed in a cascade, or to communicate externally, when a
single boiler is installed. It is positioned in the cover of the control panel and fixed in place with two screws.
BOILER BOARD
DIP SWITCH
RS-485 BOARD
1 2 3
( )
1
2
3
4
5
6
ON
–
+
GND
–
+
GND
Connections for external communication
(in MODBUS)
WIRED CONNECTOR CN
Fig. 11
m
CAUTION
Users must:
– Use an omnipolar cut-off switch, disconnect switch
in compliance with EN Standards
– Respect the connections L (Live) - N (Neutral)
– Ensure that the special power cable is only replaced
with a cable ordered as a spare part and connected
by professionally qualified personnel
– Connect the earth wire to an effective earthing
system. The manufacturer is not responsible for any
damage caused by failure to earth the appliance or
failure to observe the information provided in the
wiring diagrams.
d
IT IS FORBIDDEN
To use water pipes for earthing the appliance.