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DOK-CONTRL-S20*SYS*INS-AP02-EN-P
IndraControl S20 System and Installation
8.2.5
Integrating analog shielding in a concept with central equipoten-
tial bonding at the control cabinet entry
D
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UA
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E1
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E2
30
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a1
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a2
10
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b1
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b2
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1
2
Fig. 8-10
Integration of analog shielding in a concept with central equipotential bond-
ing at the control cabinet entry
1
Lead the analog cable into the connector, making sure to maintain the cable
insulation.
2
Use shielded twisted pair cables.
3
Connect the strain relief directly to the FE potential.
Connect the shield for the entire analog transmission path to FE potential at
only one point. In this example, this point is the marshalling level.
4
Lead the sensor cable into the sensor, making sure to maintain the cable
insulation.
NOTICE
When integrating the shielding of analog I/O cables in an equipotential bonding
concept, make sure that direct connection to the FE potential is only made at one
point (e.g., at the central grounding point of the marshalling level).
Bosch Rexroth AG
4
3
Functions may be impaired
79/122
Grounding and shielding
Sensor
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