Devatec ElectroVap ELMC 20-30 SB, Инструкция по эксплуатации

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ElectroVap®
ELMC-SB
22
3.8.2 Remote information board
The contact can be changed to NO or NC by wiring according to the following diagrams (e.g. wiring on 30 & 31 = NO
contact).
3.8.3 RS485 – Hardware connection
RS485 connection must be plugged on the J2 connector:
•
Terminal 1: Data -
•
Terminal 2: Data +
•
Terminal 3: GND
The SW1 switch is used to turn line resistance on or off. Depending on your
needs, these resistances can be activated or deactivated (see diagram).
X22 Connector (36-37-38): Remote
steam production dry contact.
X21 Connector (33-34-35): Remote
general fault dry contact.
X20 Connector (30-31-32): Remote tank
maintenance dry contact.
1
2
3
4
3
2
1
J2
SW1
On
Off
K4A
X10
Main board
SW1
–2
J2
1 : Data
–
2 : Data +
3 : GND
+5V
680
SW1
–3
120
SW1
–1 680
Main board
Ref : 500102
X18
Ref 500400
500400
X23
X20 X22 X21
X2
0
30 31 32
X2
1
33 34 35
X2
2
36 37 38
NO NC NC
NC
NO NO
Fig. B 3-8.
Fig. A 3-8.