Connecting The Data Lines To The Bus Coupler - Aventics DDL Mode D'emploi

64 AVENTICS | DDL, CL03/CL03-XL | R402003658–BDL–001–AE
Assembly
BUS IN
X71
1 4
5
2 3
2 3
5
1 4
BUS OUT
X72
Current flow in shield due to differences in potential
Compensating currents caused by differences in potential
must not flow over the shield of the DDL cable. This could
damage the line and connected bus couplers.
O
If necessary, connect the grounding points for the system
using a separate line.

6.3.1 Connecting the data lines to the bus coupler

Use pre-assembled cables to connect the cables.
See "Spare parts and accessories" on page 87.
Observe the following if you do not use pre-assembled cables:
W
Use 5-wire, shielded lines.
W
Connect the shield on both sides of the bus cable directly to
the plug housing (EMC housing). This protects data lines
from terminal interference.
W
Use cables with a wire cross-section of at least 0.34 mm
O
Wire connections X71 and X72 in accordance with the
following table.
Table 4: Assignment X71 (DDL IN) and X72 (DDL OUT), M12, A-coded
Contact
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Knurled nut/
thread
NOTICE
Meaning
24 V line for electronics/sensors
24 V line for valves (U
0 V line
DDL H signal line
DDL L signal line
Shield
)
Q3
2
.