Electrical installation
4.8 Signal connections
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
95
Connectors
The cables must be connected via PROFIBUS connectors as they contain the necessary
terminating resistors.
The figure below shows suitable PROFIBUS connectors with/without a PG/PC connector.
PROFIBUS connector
without PG/PC connection
6ES7972-0BA42-0XA0
PROFIBUS connector
with PG/PC connection
6ES7972-0BB42-0XA0
Bus terminating resistor
The bus terminating resistor must be switched on or off depending on its position in the bus,
otherwise the data will not be transmitted properly.
The terminating resistors for the first and last nodes in a line must be switched on; the
resistors must be switched off at all other connectors.
The cable shield must be connected at both ends over large-surface area contacts.
Note
Connector type
Depending on the connector type, the correct assignment of the connector must be ensured
(IN/OUT) in conjunction with the terminating resistor.
Содержание SINAMICS S150 NEMA
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