Siemens SINUMERIK ONE NCU 1760 - Connecting PROFIBUS DP

Characteristics Supplementary conditions
Permissible temperature range for cable routing -5° C to +50° C
Temperature range for storage and stationary operation -30° C to +65° C
7.9.5 Connecting PROFIBUS DP
Introduction
PROFIBUS cables are connected to the X126 interface via a bus connector.
Wiring the bus connector
1. Proceed as follows to connect the bus connector:
2. Plug the bus connector into the corresponding interface on the NCU.
3. Screw the bus connector into place.
As the NCU is located at the start or end of a segment, you must switch on the terminating
resistor ("ON" switch setting).
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VZLWFKHGRQ
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RQ
RII
RQ
RII
Figure 7-7 Terminating resistor switched on and off
Note
Make sure that the stations on which the terminating resistor is located are always supplied
with voltage during ramp-up and operation.
Connecting
7.9 PROFIBUS DP
NCU 1760
Equipment Manual, 02/2020, A5E45627861B AB 73