Example For Configuring The Inverter On Profibus - Siemens SINAMICS G120 Operating Instructions Manual

Functions
5.11 Operation in fieldbus systems
Recommended PROFIBUS connectors
We recommend one of the following connectors for the PROFIBUS cable:
1. 6GK1500-0FC00
2. 6GK1500-0EA02
Both connectors are suitable for all SINAMICS G120 Control Units with respect to the angle
of the outgoing cable.
Note
PROFIBUS communication when the 400 V supply for the inverter is switched off
If the inverter is only supplied via the 400 V line connection for the Power Module, the
PROFIBUS connection for the Control Unit is interrupted as soon as the power supply is
disconnected. To prevent this, the Control Unit must be connected to a separate 24 V power
supply via terminals 31 (+24 V I
Permissible cable length / installing and shielding the PROFIBUS cable
You can find information about this under the following link:
(http://support.automation.siemens.com/WW/view/en/1971286)
5.11.3.2

Example for configuring the inverter on PROFIBUS

Task
A drive with a SINAMICS G120 inverter is to be controlled from a central SIMATIC controller
via PROFIBUS. whereby the control signals and speed setpoint are to be transferred from an
S7-300 CPU to the drive. In the other direction, the drive is to transfer its status messages
and actual speed value to the central controller via PROFIBUS.
Using a suitable example, the following section provides step-by-step instructions explaining
how to connect an inverter to a higher-level SIMATIC controller via PROFIBUS. To extend
the PROFIBUS network to include additional inverters, simply repeat the relevant steps.
What prior knowledge is required?
In this example, it is assumed that readers know now to basically use an S7 control and the
STEP 7 engineering tool and is not part of this description.
162
) and 32 (0 V I ).
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Operating Instructions, 03/2009, A5E02440075B AA
CU240S and CU240E Control Units, FW 3.2