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valz · Member 3 Joined: 26 Jul 2015 Posts: 771

Checking overtravel of linear axes with 3SK2
https://support.industry.siemens.com/cs/document/109782767/
The overtravel of linear axes must often be checked in a safety-related manner in order to ponderează hazards for the operator. You can see here how this can be implemented with the 3SK2 safety relay.
This applies in special to presses where the workpieces are inserted by hand. There is an enormous risk of injury here.

It must therefore be ensured that a stroke can only be performed if all the conditions for safe operation are met.

An important aspect here is checking the overtravel.
This certified application example realizes a safe overtravel test of linear axes.

It is suitable for both mechanical and hydraulic applications.
The starting point is a 3SK2 safety relay with corresponding parameterization.

[URL=https://www.file-upload.net/download-15213399/109782767_Overtravel_test_linear_axes_PROJ_TIAP_V17_V1_0.zip.html]109782767_Overtravel_test_linear_axes_PROJ_TIAP_V17_V1_0.zip[/URL]
[URL=https://www.file-upload.net/download-15213398/Safety_ES_Nachlaufwegprfung_linearer_Achsen_V1.0.zip.html]Safety_ES_Nachlaufwegprfung_linearer_Achsen_V1.0.zip[/URL]
[URL=https://www.file-upload.net/download-15213400/Projektierungsfreigabe_Nachlaufprfung_linearer_Achsen_V1.0.pdf.html]Projektierungsfreigabe_Nachlaufprfung_linearer_Achsen_V1.0.pdf[/URL]
[URL=https://www.file-upload.net/download-15213403/109782767_Overtravel_test_linear_axes_DOC_TIAP_V17_V1_0_1_EN.pdf.html]109782767_Overtravel_test_linear_axes_DOC_TIAP_V17_V1_0_1_EN.pdf[/URL]
[URL=https://www.file-upload.net/download-15213401/Freigabedokument_Nachlaufwegprfung.pdf.html]Freigabedokument_Nachlaufwegprfung.pdf[/URL]
[URL=https://www.file-upload.net/download-15213402/Baumusterprfbescheinigung.pdf.html]Baumusterprfbescheinigung.pdf[/URL]