Functional Description - Cedes cegard/Mini Manual De Usuario

cegard/Mini
IMPORTANT
READ FOR INSTALLATION!
Follow the instructions given in this manual carefully.
Failure to do so may cause customer complaints and
serious call backs. Keep instruction manual on site.
When the cegard/Mini light curtain is used as a
replacement for mechanical safety edges, it is the
responsibility of the installer to ensure that on completion,
the installation complies with all the relavant state codes,
local codes and regulations that pertain to infrared and
photoelectric door protection devices!
In Canada, particular attention should be given to clauses
2.13.5.1 and 2.13.5.2 CAN/CSA-B44-B89!
The light curtain should only be installed by authorized and
fully trained personnel! The installer or system integrator
is fully responsible for the safe integration of the sensor.
The cegard/Mini must not be used for:
• Protection of dangerous machines
• Equipment in explosive atmospheres
• Equipment in radioactive environments
Use only specific and approved safety devices for such
applications, otherwise serious injury or death or damage
to property may occur!
2 CEDES AG reserves the right to modify or change technical data without prior notice.
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 protection 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 10 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 the 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 10 to 30 VDC is not available, two different state-of-the art power aupplies available from
CEDES may be used.
• A universal power supply with relay output and
integrated EMC filter accepts any voltage available
from 20 to 265 VAC / 20 to 365 VDC without any
special wiring or adjustments. The polarity of DC
voltage is irrelevant. This product is especially useful in
modernization applications where the supply voltage is
not standardized or known.
• A simple power supply which accepts AC voltages from
85 to 265 VAC with integrated EMC filter. This device
has also a relay output.
Main features of cegard/Mini
• Very robust and extremely compact design
• No earth connection necessary
• Designed lifetime of more than 20 years due to special
cable that withstands more than 20 million door openings (if properly installed)
• Plug'n-play edges with integrated controller
• Suitable for side or center opening doors
• Blanking of one defective opto element after 45
seconds (function not available in US and Canadian
versions)
• Mechanically compatible to cegard/Max and MiniMax
English
© CEDES | V 3.0