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Table 7-1
PROFIBUS interface X126
Pin
Signal name
Meaning
Range
1
-
Not assigned
2
M24_SERV
Power supply for teleservice, ground
0 V
3
RxD/TxD–P
Receive/transmit data P (B)
RS485
4
CNTR–P
Control signal
TTL
5
DGND
PROFIBUS data reference potential
6
VP
Supply voltage plus
5 V +- 10%
7
P24_SERV
Power supply for teleservice, +24 V
24 V (20.4 V to 28.8
V)
8
RxD/TxD–N
Receive/transmit data N (A)
RS485
9
-
Not assigned
NOTICE
Damage to components
If CAN cables are connected to the X126 interface, the CU320 or other CAN bus nodes can
be damaged.
Do not connect any CAN cables to the X126 interface.
Note
A teleservice adapter can be connected to the PROFIBUS interface X126 for remote
diagnostics purposes.
The power supply for the teleservice (terminals 2 and 7) can have a load of up to 150 mA.
Diagnostics LED
②
The meaning is explained in the table below.
Table 7-2
Description of the COM LED
Color
Status
Description
-----
Off
Cyclic communication has not (yet) taken place.
Note:
If the Control Unit is operational, the PROFIdrive is ready for communi‐
cation. The COM LED lights up.
Green
Continuous
light
PROFIBUS is ready for communication and cyclic communication is tak‐
ing place.
Green
0.5 Hz flashing
light
Full cyclic communication is not yet taking place.
● The controller is not transferring any setpoints.
● During isochronous operation, no or a faulty global control (GC) is
transferred by the controller.
Red
2 Hz
flashing light
Cyclic communication has been interrupted.
Start-up
7.1 Description and configuration of the PROFIBUS interface
SINAMICS GM150 6SL3835-2LN44-2AA0
Operating Instructions Rev.201910281250 MUSTER
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