Installation
User manual 57120_hdb_en_12
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7.4
Wiring of the expansion modules
Terminal module
connection terminals
CAUTION!
Connection of dangerous voltage
Dangerous voltage on the terminal module will destroy the modules.
Exception:
If this has been specified explicitly in the module description.
Do not connect the terminal module to dangerous voltage!
Terminals with spring-clamp technology are used for wiring the terminal mod-
ules. The wiring with spring-clamp technology allow you to connect the signal-
ing lines and power cables fast and easily. In contrast to the screw connection,
this type of connection is resistant to vibrations.
The installation procedure with spring terminals is described in 7.2 "Spring ter-
Standard wiring
Fig. 7-6: Standard wiring
1
24 V DC for power supply of I/O level (max. 10 A)
2
24 V DC for electronics supply, bus node and I/O level
7.5
Wiring of the power modules
Terminal module
connection terminals
Power modules are either integrated into the bus node or may be plugged be-
tween the expansion modules.
4
Sys 24 V DC
Input
24 V DC for electronics supply
5
-
-
not used
6
24 V DC
Input
24 V DC for power supply
7
0 V
Input
GND for power supply
8
Sys 0 V
Input
GND for electronics supply
Pos.
Function
Type
Description
