Mounting/Dismounting
24
05/01 AWB2700-1384GB
Installation/Removal of Distribution Rails
Distribution rail elements are easily mounted by hand on the
terminal carriers. Removal can be carried out with the help of a
screwdriver.
Colour Coding
All distribution rails are colour-coded. Their red-brown, blue and
green-yellow colouring clearly indicates the correct supply
connections.
Labels
The base element has standardized labelling on receipt as follows:
• dentification of supply (U
S
, +24 V DC) and signal lines
(I=Input, Q=Output)
• Potential indication
• Supply voltage indication
Labelling can be extended, depending on the customer’s requests.
Bus Connection
The incoming/outgoing bus conections are connected to the base
element using direct wiring.
Power Supply
Power supplies are connected to the base element using direct
wiring:
U
S
=Module supply (always +24 V DC)
U
L1
- U
L4
=Byte-by-byte supply for initiators/actuators
PE Connection (Ground)
The PE connection can be established via direct wiring or via a PE
terminal.
The PE base element is automatically connected to the mounting
rail on mounting. There is only one PE base element per terminal
block.
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