Bosch Rexroth IndraControl VPB 40.3, Operating Instructions Manual

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Comply with the permissible bending and torsional stress of the cable
Potential equalization
Ensure that no compensating current flows via the cable shield of the CDI cables
between device parts and machine parts during the establishment of the equi-
potential bonding.
Shielding
The shielding is an important part of the CDI cable. The shielding is used to
shield the data wires in the cable against electrical interferences from the envi-
ronment.
The shielding has to be connected to the potential equalization of the devices to
shield the data wires. In most cases, a connection via the RJ45 connectors is
sufficient.
Avoid collection of dirt at the R45 plug which can occur while drawing in the ca-
bles in the system.
Remove any collection of dirt from the shield surfaces of the RJ45 plug before
plugging it in.
Fig. 10-16: RJ45 plug shielding areas
Additional shielding connection in case of strong electrical interferences and
long cables
In case of strong electrical interferences and long cable lengths, it can be re-
quired to additionally connect the shielding to the earthing potential.
Mount suitable EMC shielding clamp close to the control cabinet PC, the remote
operator display or the Y-repeater.
Ensure that the CDI cable is not crimped when connecting the shielding to the
equipotential bonding. Avoid mechanical stress (tensile, compressive) on the
plug. Use an EMC shielding clamp suitable for the cable diameter. Crimping the
cable impairs the electrical properties of the CDI cable.
Observe the following when mounting the shielding connection:
Control Cabinet PC Bosch Rexroth AG
Mounting, demounting and electric installation
DOK-SUPPL*-VPB*40.3***-IT05-EN-P
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