Siemens SINAMICS G220 - Analog Inputs as Additional Digital Inputs; Connection Options for the Fail-Safe Digital Inputs

7.2.8 Analog inputs as additional digital inputs
Description
Analog input terminals must be speci󹪝cally connected to use analog inputs as additional digital
inputs.
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Figure7-19 Using analog inputs as additional digital inputs connected to 24V
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Figure7-20 Using analog inputs as additional digital inputs connected to 10V
7.2.9 Connection options for the fail-safe digital inputs
Requirement
WARNING
Unexpected movements due to long connecting cables
If a connection cable at a failsafe digital input is too long, then overvoltages can damage the
failsafe digital input. It is possible that a damaged failsafe digital input can no longer detect the
signals of the connected sensor. This may impair the functional safety of the machine or the
system and therefore endanger people or lead to material damage.
• Use a surge protection device for cable lengths > 30m.
Connecting
7.2Interfaces for the controller
SINAMICS G220 converter
182 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB