Safety Light Curtain
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5.2.3 Operational Functions
5.2.3.1 Safety Operating Mode (Automatic Restart)
In this operating mode, the switching outputs are disabled when the safety field is penetrated. The switching
outputs are automatically enabled after interruption of the safety field has ended.
A check must be carried out to determine whether safety operating mode is permitted for the application.
WARNING!
• Start-up disabling and restart inhibit is required for access protection.
• Operating the ESPE with automatic restart is only permitted in exceptional cases and in
specific conditions.
Note that:
➔
The safety operating mode is parametrized on the receiver.
➔
If the restart inhibit (RES) is deactivated, safety operating mode is activated automatically.
5.2.3.2 Start-Up Disabling and Restart Inhibit (RES)
• Once the safety field is penetrated, this operating mode prevents the machine from restarting automatically
by ensuring that the OSSDs remain in off state.
• This status is retained even when the supply voltage is switched on again (e.g. after a power failure).
• The OSSDs are only enabled again when an acknowledgment key is pressed.
NOTE!
• The acknowledgment key must be located outside the danger zone.
• From the location of the acknowledgment key, the operator must have a clear view of the
danger zone to ensure a safe restart.
• Depending on the constellation of the ESPE, a restart inhibit (prevents start-up after an
error or safety field penetration) or start inhibit (prevents start-up after switch-on) can be
displayed for the machine.
DANGER!
Risk of fatal injury due to unintentional start and restart!
• It is important to ensure that the acknowledgment key can not be actuated from inside the
danger zone.
• Ensure that there is no one in the danger zone before releasing the start-up disabling and
restart inhibit.
• The ESPE can not check whether the machine control has start-up disabling and restart
inhibit. Ensure that there is always an active start-up disabling and restart inhibit.
