Profibus; What Do You Need For Communication Via Profibus; Integrating Inverters Into Profibus - Siemens sinamics G120 Operating Instructions Manual

Installing
4.8 Connecting the inverter to the fieldbus
4.8.3

PROFIBUS

4.8.3.1

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 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 control?
Do the addresses in the inverter
and the higher-level control
match?
Is the same telegram set in the
higher-level control and in the
inverter?
Are the signals that the inverter
and the control exchange via
PROFIBUS correctly intercon-
nected?
4.8.3.2

Integrating inverters into PROFIBUS

Procedure
To connect the inverter to a control via PROFIBUS DP, proceed as follows:
1. Integrate the inverter into the bus system (e.g. line topology) of the control using
PROFIBUS cables via socket X126.
The maximum permitted cable length to the previous station and the subsequent one is
100 m at a baud rate of 12 Mbit/s.
2. Externally supply the inverter with 24 VDC through terminals 31 and 32.
The external 24 V supply is only required if communications with the control should also
run when the line voltage is switched off.
You have now connected the inverter to the control using PROFIBUS DP.
Communication with the controller even when the supply voltage on the Power Module is
switched off
You must supply the Control Unit with 24 V DC at terminals 31 and 32 if you wish to maintain
communication with the control system when the line voltage is switched off.
In the case of brief interruptions of the 24 V power supply, the inverter may signal a fault
without communications with the control system being interrupted.
112
Description
(Page 112)
SIMATIC S7 control (Page 113)
Setting the telegram in the control
Interconnect signals PROFIdrive-conform in the
inverter.
the PROFIdrive profile (Page 171)
Overview of the interfaces (Page 85)
Integrating inverters into PROFIBUS
Configuring the communication using
Setting the address (Page 114)
Control via PROFIBUS or PROFINET with
Operating Instructions, 01/2016, FW V4.7 SP6, A5E31759476B AE
Examples
---
view of the
manuals
(Page 510)
Converter with CU250S-2 Control Unit
Over-