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 dierent function to a digital input.
Example 2: Switch the speed setpoint from the xed 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 dierent 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 nd 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).
Appendix
A.2Interconnecting signals in the converter
SINAMICS G120C Converters
Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK 463
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