Connecting
3.7 Connecting PROFIBUS/MPI
SIMOTION D4x5-2
66 Commissioning and Hardware Installation Manual, 02/2012
Supplementary conditions
In addition, when laying a bus cable for indoor use, you must take into account the following
supplementary conditions (dA = external cable diameter):
Table 3- 6 Supplementary conditions for the laying of PROFIBUS cables
Characteristics Supplementary conditions
Bending radius for a single bend 80 mm (10xdA)
Bending radius for multiple bends 160 mm (20xdA)
Permissible temperature range for cable routing -5° C to +50° C
Temperature range for storage and stationary operation -30° C to +65° C
Additional references
Length codes for prefabricated cables can be found in:
● Catalog PM 21; SIMOTION, SINAMICS S120, and Motors for Production Machines
● Catalog IK PI (Industrial Communication)
3.7.5 Connecting PROFIBUS DP (interfaces X126 and X136)
PROFIBUS cables are connected to the corresponding interface via a bus connector.
Connecting the bus connector
Proceed as follows to connect the bus connector:
1. Plug the bus connector into the corresponding interface of the control unit.
2. Screw the bus connector into place.
If the control unit is located at the start or end of a segment, you must switch on the
terminating resistor ("ON" switch setting).
7HUPLQDWLQJUHVLVWRU
VZLWFKHGLQ
7HUPLQDWLQJUHVLVWRU
QRWVZLWFKHGLQ
RII
RQ
RQ
RII
Figure 3-11 Terminating resistor "switched on and off"
Note
Make sure that the nodes at which the terminating resistor is located are always supplied
with voltage during startup and operation.
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