89
LOGO! manual
EWA 4NEB 712 6006-02
5.4 Industrial gate
Warning
light
Safety pressure bar
There is often a gate at the entrance to a company’s premises. This is only
opened to let vehicles in and out.
The gate is controlled by the gateman.
5.4.1 Demands on the door control system
S The gate is opened, closed and monitored by the gateman, who operates
it by means of a switch in the gatehouse.
S The gate is normally completely open or completely closed, but its
movement can be interrupted at any time.
S A warning light starts flashing on and off 5 seconds before the gate be-
gins to move and continues for as long as the gate is still moving.
S A safety pressure bar ensures that nobody gets injured and nothing gets
caught or damaged when the gate closes.
Applications
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