Profibus; Profibus Connection - Siemens SINAMICS DCM Operating Instructions Manual

10.2

PROFIBUS

10.2.1

PROFIBUS connection

Position of PROFIBUS connection and diagnostics LEDs
The PROFIBUS connection and diagnostics LEDs are located on the Control Unit (CUD).
The PROFIBUS connection is established using a 9-pin Sub-D socket (X126). The
connections are electrically isolated.
PROFIBUS connection
Table 10- 3 PROFIBUS connector assignment
Connector Pin
X126
1
2
3
4
5
6
7
8
9
Module C98043-A7100-L1/L2, Standard/Advanced CUD
Bus connector
The cables must be connected using PROFIBUS bus connectors as these contain the
necessary bus terminating resistors.
Matching PROFIBUS bus connector, Order No. 6GK1500-0FC10:
Figure 10-1
SINAMICS DCM DC Converter
Operating Instructions, 1.2012, C98130-A7066-A1-05-7619
Signal name Technical data
- Not assigned
- Not assigned
RxD/TxD-P RS485 receive/transmit data P (B)
CNTR-P Control signal (TTL)
DGND PROFIBUS data ground
VP Positive supply voltage (5 V +/-10%)
- Not assigned
RxD/TxD-N RS485 receive/transmit data N (A)
- Not assigned
PROFIBUS bus connector
Descriptions of functions
10.2 PROFIBUS
339