Application Example - Siemens SINAMICS G120C Operating Instructions Manual

Interconnecting signals
When must you interconnect signals in the converter?
If you change the signal interconnection in the converter, you can adapt the converter to
a wide range of requirements. This does not necessarily have to involve highly complex
functions.
Example 1: Assign a different function to a digital input.
Example 2: Switch the speed setpoint from the fixed speed to the analog input.
Principle when connecting BICO blocks using BICO technology
When interconnecting the signal, the following principle applies: Where does the signal
come from?
An interconnection between two BICO blocks consists of a connector or a binector and a BICO
parameter. The input of a block must be assigned the output of a different block: In the BICO
parameters, enter the parameter numbers of the connector/binector that should supply its
output signal to the BICO parameter.
How much care is required when you change the signal interconnection?
Note which changes you make. A subsequent analysis of the set signal interconnections is
possible only by evaluating the parameter list.
Where can you find additional information?
• All the binectors and connectors are located in the Parameter list.
• The function diagrams provide a complete overview of the factory setting for the signal
interconnections and the setting options.
A.2.2

Application example

Shift the control logic into the converter
It is only permissible that a conveyor system starts when two signals are present simultaneously.
These could be the following signals, for example:
• The oil pump is running (the required pressure level is not reached, however, until after 5
seconds)
• The protective door is closed
To implement this task, you must insert free function blocks between digital input 0 and the
command to switch on the motor (ON/OFF1).
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
A.2 Interconnecting signals in the converter
Appendix
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