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2504709-01-06/17 (translation of the original operating instructions)
Operating Instructions
Light Grids/ Light Curtains LCA 4
EN
6.3.1. Example application, protection against stepping behind
The master device is used as the primary item of protective equipment. The slave device is used as the secondary item of
protective equipment.
On entering the protective device, the light beams of the light curtain are interrupted and the machine movement stopped.
The horizontally installed light curtain detects that there is a person in the danger area because the light beams are also
interrupted here. The machine movement remains stopped.
Once the person has left the danger area, the devices (master/slave) change to normal operation. The machine can then
be started.
Figure 5:
Protection against stepping behind: danger area clear
Figure 6:
Protection against stepping behind: danger area occupied
6.3.2. Feedback loop integration
The feedback loop makes it possible to monitor the function of relays or contactors connected externally.
The safety outputs are only switched on if the feedback loop is closed.
NOTICE
For further information see chapter: Setup
Содержание LCA 4
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