Applications
IDEC SmartRelay Manual 281
8.4 Factory door
The entrance to a company’s premises is often closed with a
gate. The gate is only opened to let vehicles in and out.
The gate is controlled by the porter.
8.4.1 Requirements for a gate control system
• The gate is opened and closed by means of pushbuttons
in the gatehouse. The porter can monitor the operation of
the gate at the same time.
• The gate is normally fully opened or fully closed. The gate
motion
can
be interrupted at any time.
• An indicator lamp is switched on five seconds before the
gate star
ts moving and when the gate is in motion.
• A safety pressure bar prevents harm to persons and
objects fr
om getting trapped or damaged when the gate
is closing.
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