Bernecker + Rainer 4MP181.0843-03, User Manual

Page: 17 / 160

General Information • Safety Regulations
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17 Mobile Panel User's Manual V 1.5
The electromechanical enable switch and equipment are to be linked with the controller so that
the safety-related circuit requirements are met according to DIN EN 775, DIN EN 60204-1,
DIN EN 954-1, DIN EN 1088 and VDI 2854.
The cables and lines used to set up the system (except for protective ground conductors) that
can be accessed or are open to other conductive parts without opening or removing a cover must
either have double or reinforced insulation between wires and the surface or have a metal sheath
that can handle the current if a short-circuit occurs between the wire and sheath.
An enable switch connection example for a monitoring device can be found in chapter 3 "Start-
up / Operation", section 3.2 "Connection Example for the Enable Switch" on page 90.
Warning!
When applicable, the enable function should be limited on the controller according
to time or program step.
Warning!
• The enable switch is only suitable as a protective function if the person
activating the enable switch can recognize the danger in time and
immediately take action to prevent the dangerous situation!
• Commands for dangerous states are not permitted to be initiated by the
enable switch alone. A second conscious start command is required here.
The only person permitted in the danger area is the person activating the
enable switch.