Shielding The Profibus Cable; Shielding Analog Sensors And Actuators; Connecting Analog Input Terminals R-Ib Il 24 Ai 2/Sf - Bosch Rexroth IndraControl L45 Project Planning Manual

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Installation and Maintenance

Shielding the PROFIBUS Cable

Shielding Analog Sensors and Actuators

Connecting Analog Input Terminals R-IB IL 24 AI 2/SF

Observe the following when shielding:
● Fit the shield over an area as large as possible under the clip in the shield
connector.
● Ensure proper contact between the connector and the terminal.
● Avoid damaging or squeezing of cores. Avoid stripping the lines too much.
● Connect the cores properly.
Lay all line and data cables in separate cable channels.
To achieve an immune transmission, Bosch Rexroth recommends a two-core
twisted and shielded line pair, as is specified as cable type A in EN 50 170, part
8-2. Cable type B, which is also described in the above specification, is obsolete
and must not be used any longer.
The cable parameters are described in
al)" on page 44.
The line shield must be applied in the bus connector. In case of installation in
the switch cabinet, the line shield of the connected PROFIBUS line must be
connected to a shield bus using cable clips, if possible directly behind the cable
bushing. This requires the appropriate shield terminal.
● Always connect analog sensors and actuators using shielded and twisted
cable pairs.
● Connect the shield system via the shield connector.
Connection of the shield to the shield connector is described on page .
Depending on the analog input and output terminals, there are several ways of
grounding the shield. The length of the cables must also be taken into consid‐
eration.
Terminal type Connection at the termi‐
nal
Analog input termi‐ Ground connections are
nal R-IB IL AI 2/SF connected to FE via an
RC element inside the
terminal.
Analog output termi‐ Directly on FE using a
nal IB R-IL AO... shield clip.
Fig.8-9: Overview: Shield connection of analog sensors/actuators
● Connect the shield system via the shield connector (see
to Tension Spring Connection Pointspage
● Connect the shield system at the sensor to the FE potential over an area
as large as possible.
The ground connection in the terminal is connected to FE via an RC element
inside the terminal.
DOK-CONTRL-ICL45L65L85-PR01-EN-P
Rexroth IndraControl L45/L65/L85 Control
chapter 7.4.3 "PROFIBUS DP (option‐
Cable Connection to the sen‐
length sor/actuator
< 10 m –
> 10 m Apply the sensor direct‐
ly to the PE.
< 10 m –
> 10 m Decouple the actuator
with RC element and
apply it to the PE.
Connecting Lines
62).