Functional Description - Cedes cegard/Mini Mode D'emploi

cegard/Mini
Introduction
The infrared light curtain cegard/Mini consists of an
emitter (Tx) and a receiver (Rx) edge, both of which
have a built-in controller. These two active parts are
electrically connected directly to the door drive unit
of the elevator and mechanically mounted either to
the car door wings and/or to the slam post. There
are various types of optional mounting kits available
from CEDES. These kits are optimized to a specific
door drive or car type.

Functional description

The emitter and the receiver edge build up a grid of
infrared beams, which cover the door entrance to a
height of 1,800 mm (6 feet). The number of beams
covering the entrance area is dependent on the
model in use. The number after the product name
'cegard/Mini' indicates the length of the protection
field and the second number is the amount of active
opto elements. Due to the use of criss cross beams,
the number of active beams used for the door pro-
tection is higher than the number of elements.
When distance between emitter and receiveredges
is lower than approximately 800 mm the angled
beams are turned off.The emitter and the receiver
require a power supply of 14 to 30 VDC. The output
of the receiver is a push/pull (PNP/NPN) stage,
which is compatible with loads connected to the
positive as well as to negative power. The output
signal of the receiver can be inverted. No electrical
connection between the emitter and the receiver is
necessary because cegard/Mini uses an optical
synchronization principle. The protection field can be
reduced to 1,600 mm with a selector on the Emitter
edge.
If a power supply of 14 to 30 VDC is not available,
two different state-of-the art Power Supplies avail-
able from CEDES may be used.
A universal power supply with relay output and
integrated EMC filter accepts any voltage avail-
able from 17 to 265 VAC or DC without any
special wiring or adjustments. The polarity of
DC voltage is irrelevant. This product is espe-
cially useful in modernization applications where
the supply voltage is not standardized or known.
A simple power supply which accepts AC volt-
ages from 85 to 265 VAC or 120 to 375 VDC
with integrated EMC filter. This device has also
a relay output.
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Installation and Operation Manual
Main features of cegard/Mini
• Very robust and extremely compact design
• No earth connection necessary
• Designed lifetime of more than 20 years due to
gold plated contacts
-
special cable that withstands more than 20 mil-
-
lion door openings (if properly installed)
• Plug'n-play edges with integrated controller
• No link connection between emitter and receiver
due to optical synchronization principle
• Suitable for side or center opening doors
• Suitable for metal or glass doors
• Optimized for static installation
• Blanking of one defective opto element after 45
seconds (function not available in US and Cana-
dian versions)
• Mechanically compatible to cegard/Max and
MiniMax
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