Equipotential Bonding
Make sure that no compensating current flows via the cable shield of the CDI
cables during the installation of the equipotential bonding between device and
machine parts.
Shielding
The shielding is an important component of the CDI cable The shielding is used
to shield the data wires in the cable against electrical interferences of the envi-
ronment. The shielding has to be connected to the equipotential bonding of the
devices to shield the data wires. In most cases, a connection via the RJ45 con-
nectors is sufficient.
Remove any collection of dirt from the shield surfaces of the RJ45 connector
prior to plugging the connector in.
Fig. 10-11: RJ45 connector shield surfaces
Additional Shield Connection in Case of Strong Electrical Interferences and
Long Cable Lengths
In case of strong electrical interferences and long cable lengths, it can be re-
quired to additionally connect the shielding to the earthing potential.
Refer to the following information regarding the additional shield connection in-
stallation:
●
Assemble suitable EMC shield clamp close to the control cabinet PC, the re-
mote operating display or the Y-repeater
●
Make sure that the CDI cable is not crimped when connecting the shielding to
the equipotential bonding
●
Avoid mechanic load (compressive load, tensile load) on the connector
●
Use EMC shield clamps compatible with the cable diameter. Crimping of the
cable impairs the electrical properties of the CDI cable.
VDP 15.3, 18.3, 21.3 Multitouch
Bosch Rexroth AG
Assembly, Disassembly and Electrical Installation
DOK-SUPPL*-VDPXX.3MTBU-IT02-EN-P
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