Aventics DDL Instrucciones De Servicio página 80

Acoplador de bus ddl con funcionalidad e/s (opcional), diseño b
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80
AVENTICS | DDL | R499050020–BDL–001–AD
Assembly
Total current is too high
The currents from the sensor and valve line (each max. 3 A)
are summed up. If the total current on the 0 V line is greater
than 4 A, the plugs and conducting paths of the device will be
overloaded.
O
Design the DDL system so that the total output of the
0 volt line is less than 4 A.
Unsafe power pack isolation
A standard power pack can supply all system components with
24 V. An unsafe power pack isolation can damage the system
and cause injuries arising from electric shock.
O
Only use a power pack with safe isolation according to
EN 60747, VDE 05551 classification! The corresponding
electrical circuits are thus SELV/PELV circuits in
accordance with IEC 60364-4-41.
How to connect the power supply on the bus coupler with an
external valve supply:
1. Set up the correct pin assignment (see Tab. 6) on the plug
connections if you do not use pre-assembled wiring.
2. Connect the power supply at the X10 (POWER) connection on
the bus coupler.
3. Check the operating voltage specifications using the electrical
characteristics and comply with them (see chapter "Technical
Data" on page 106).
NOTICE
CAUTION

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