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ABB AC 800M

ABB AC 800M
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Shielding and data line connection Section 3 Fieldbus Topologies
82 3BDS009029R5001 B
The capacitor shall have the following requirements:
solid dielectricum (for example ceramic)
•C <
10 nF
isolation voltage >
1,5 kV
For PROFIBUS PA only shielded wires should be used. The shield should be
hard-grounded at the Linking Device or the power link module and on all field
devices. For intrinsically safe applications a potential compensation between the
safe and hazardous areas is required.
If there is no potential compensation between the safe and hazardous areas, there
is a possibility of capacitive grounding on the LD 800P Linking Device/Power
Link Module.
Screen
+
-
Field device
+
-
Shield
Bus
connection
Shield/FE
+ DC 24 V
- DC 24 V
Shield/FE
PROFIBUS DP
PROFIBUS PA
RxD/TxD-P
RxD/TxD-N
Power Link Module
PL 810 or PL 890

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