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1.4 Brief Explanation
Contactor Monitoring
An operating mode for which switching performance of the contacts at an external relay is dynamically monitored.
The contacts must close fully within a specified period of time.
Muting Mode
Objects can be fed through the safety field without switching the safety output in this operating mode.
OSSD (Output Signal Switching Device)
The output of the contactless safety device which is connected to the machine controls. The safety output is deac-
tivated when the safety field is interrupted.
Override
This function enables to switch the outputs ON if the protection zone is interrupted. If there is for example after an
error during the Muting Operation Mode still material within the protection zone, this material can be removed with
the help of the Override function.
Restart Inhibit
A function which prevents a machine from starting up automatically after it has been switched on. The machine can
only be enabled by activating an acknowledgement key.
Safety Operating Mode
In this operating mode, the switching outputs are disabled when the safety field is penetrated. The switching outputs
are automatically enabled after penetration of the safety field is ended.
Signal Output
The signal output is used to connect a watchdog for the floating blanking, auto floating blanking and reduced reso-
lution function types.
1.5 Explanation of Utilized Symbols
Makes reference to a measure for the prevention of a concrete danger.
Illustrates suggestions and instructions, which make use of the controller easier.
2 Important Notes Concerning Use
2.1 General Comments
The use of electro-sensitive protective equipment (ESPE) is regulated by official directives. National and
international regulations apply to the safe utilization of ESPE, in particular:
• EN standards
• Accident prevention regulations
Contactless safety devices may only be used at power operated machinery whose controls can be electrically influ-
enced such that hazardous motion can be stopped immediately during all operating phases.
A risk analysis in accordance with ISO 14121 must be conducted before use, in order to determine whether or not
the use of a safety device Performance Level c per EN ISO 13849-1 is permissible.
If other light beams occur in an application (e.g. use of infrared controls, radiation of welding processes,
stroboscope lights) additional measures could be necessary to assure that the ESPE doesn’t fail dangerously.
Powerful fluorescent lamps must not be pointed directly towards the receiver’s lens. The receiver
might otherwise fail in a hazardous manner.
Testing must be performed by an expert prior to initial start-up of electro-sensitive protective equipment.
Testing must establish flawless interaction of the electro-sensitive protective equipment together with the
controls of the power operated machinery, and correct installation in accordance with these safety precau-
tions.
