Omron sysmac NX Series User Manual page 917

Program
Precautions for Safe Use
• Test the functionality every six months to detect welded contactor contacts.
• The customer is responsible for attaining conformance of the entire system to standards.
• To detect electrical and mechanical failures, use a combination of redundant semiconductor
output contacts and redundant mechanical output devices.
• Refer to ISO 14119:2013 for additional measures to minimize the possibility of interlocking
devices associated with guards from being disabled.
A-4-8
D40Z Non-contact Door Switches
Application Overview
Safety category/PL
Equivalent to 4/PLe
(Safety Light Curtain)
If the light in the safety light curtain S3 is interrupted and the non-contact door switch S4 turns OFF at
the same time, the outputs are turned OFF.
The outputs also turn OFF when emergency pushbutton S1 is pressed.
NX-series Safety Control Unit/Communication Control Unit User's Manual (Z395)
Safety device
•
Safety light curtain
•
Emergency stop pushbutton
Appendices
Stop category Reset
0 Manual
A
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