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Ex p Control Unit
SIEMENS Set
Electrical connections
Rev. 0
01-37A2-7D0004_SIEMENS_Manual_Exp-Control-Unit_20220216_0_en.docx
Page 39 of 80
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6.2.1.6
Terminal row “X6“
ATTENTION
MATERIAL DAMAGE DUE TO INCORRECT PRE-FUSING.
Valve or control electronics may be damaged.
Operate the digital outlet valve only with a 1.0 A pre-fuse and the
proportional outlet valve only with a 1.6 A pre-fuse.
The terminal row X6 is used to connect the purge gas valve and the
accompanying valve fuse. Furthermore, the terminal points 6 – 9 are intended for
wires of the LAN connection cable.
Terminal
Connection
Function
1
Pre-fuse
Connection pre-fuse valve
2
Pre-fuse
Connection pre-fuse valve
3
Valve +
+ conductor valve
4
Valve -
GND valve
5
Valve - PE
PE valve
Connection of the original programming cable
6
L1
GN
Send, negative
7
L2
GNWH
Send, positive
8
L3
OG
Receive, negative
9
L4
OGWH
Receive, positive