Communication Via Profibus; What Do You Need For Communication Via Profibus; Integrating The Inverter In Profibus - Siemens SINAMICS G120D Operating Instructions Manual

Adapt fieldbus configuration

6.4 Communication via PROFIBUS

6.4 Communication via PROFIBUS
6.4.1

What do you need for communication via PROFIBUS?

Check the communication settings using the following table. If you answer "Yes" to the
questions, you have correctly set the communication settings and can control the inverter via
the fieldbus.
Questions
Is the inverter correctly con-
nected to the PROFIBUS?
Have you configured the com-
munication between the inverter
and the higher-level controller?
Do the addresses in the inverter
and the higher-level controller
match?
Is the same telegram set in the
higher-level controller and in
the inverter?
Are the signals that the inverter
and the controller exchange via
PROFIBUS correctly intercon-
nected?
6.4.2

Integrating the inverter in PROFIBUS

Procedure
To connect the inverter to a control via PROFIBUS, proceed as follows:
1. Integrate the inverter in the bus system (e.g. line topology) of the control using
PROFIBUS cables and the two PROFIBUS jacks X03 and X04. If your inverter forms the
end of the line, only use jack X03 and connect the bus-terminating resistor.
The position of the jacks and the pin assignment can be found in Section Overview of the
interfaces (Page 34).
The maximum permitted cable length to the previous station and the subsequent one is
100 m at a baud rate of 1 Mbit/s.
2. Externally supply the inverter with 24 V DC through X01.
The external 24 V supply is only required if communications with the control should also
run when the mains voltage is switched off.
You have now connected the inverter to the control using PROFIBUS DP.
110
Description
See Section: Connections and cables (Page 41).
See Section: Configuring the communication using
SIMATIC S7 control (Page 111)
See Section: Setting the address (Page 111).
Setting the telegram in the control
Adapt the interconnection of the signals in the
controller to the inverter. The interconnection in the
inverter in conformance with PROFIdrive is provid-
ed in Section: PROFIdrive profile for PROFIBUS
and PROFINET (Page 88).
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
Examples
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See Manuals
for your in-
verter
(Page 387)
Converter with control units CU250D-2