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

Configuring the fieldbus

7.3 Communication via PROFIBUS

7.3 Communication via PROFIBUS
7.3.1

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 converter
via the fieldbus.
Questions
Is the inverter correctly
connected to the PROFIBUS?
Have you configured the
communication 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
interconnected?
7.3.2

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 36).
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.
88
Description
See Section: Connections and cables
(Page 37).
See Section: Configuring the
communication using SIMATIC S7
control (Page 89)
See Section: Setting the address
(Page 89).
Adapt the telegram in the inverter. See
Section: Setting the address (Page 89).
Adapt the interconnection of the signals
in the controller to the inverter. For the
PROFIdrive-compliant interconnection in
the inverter, see also Section:
PROFIdrive profile for PROFIBUS and
PROFINET (Page 91).
Operating Instructions, 04/2014, FW V4.7, A5E34262100B AA
Examples
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See Manuals for your
converter (Page 292)
Converter with control units CU240D-2