Connecting The Bus Coupler Electrically - Aventics DDL Instrucciones De Servicio

Acoplador de bus ddl, diseño b
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AVENTICS | DDL | R412009417–BDL–001–AD
6.3

Connecting the bus coupler electrically

Applied voltage
Danger of injury from electric shocks.
Make sure the relevant system component is not under
O
pressure or connected to power when electrically
connecting modules to the valve system.
Do not insert or disconnect plug connectors under load.
O
Faulty wiring
Faulty wiring can lead to malfunctions as well as damage to
the DDL line. This is particularly the case if 24 V voltage is
present on the DDL-H and DDL-L signal lines or if the supply
lines have been exchanged.
Thus, use pre-assembled plug connections and cables to
O
connect the modules. Only use cables that meet the DDL
system specifications as well as the connection speed
and length requirements.
In order to assure both the protection class and the
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required strain relief, the cable and plug assembly
should be done professionally.
Current flow in shield due to differences in potential
Compensating currents caused by differences in potential
must not flow through the shield of the DDL cable, as this will
cancel the shielding, which could damage the line and
connected bus coupler.
If necessary, connect the grounding points for the system
O
using a separate line.
CAUTION
NOTICE
NOTICE
59
Assembly

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