Functional Description; Muting Function; Inactive Mode - Cedes cegard/Max-154 Manual

Operation Manual
Main Features of Light Curtain
• Self calibrating, fault tolerant
• Easy installation without alignment

• Muting function

• Very dense surveillance area
• Robust and reliable
• Integrated diagnostics
Applications (page 3)
cegard TM /Max is ideal for more comfort and im-
proved safety on automatic elevator doors and
other automatic doors. Complete kits for moderni-
zation, a vast range of accessories or special con-
figurations are available.
cegard TM /Max must not be used as a protec-
tive device for dangerous machinery nor in ex-
plosive atmospheres or radioactive environ-
ments

Functional description

Between emitter E and receiver R a high density
protection area is built up with straight and
crossed beams. A built-in calibration feature con-
trols the power of each individual beam to elimi-
nate any adjustment, suppress light interference
or control influence from dirt and automatically
recognizes the working mode. The device per-
forms a continuous self test diagnosis to mute
single emitter or receiver elements. These fea-
TM
tures give cegard
tional reliability. Any interruption of the protection
area by a person or an object will be detected and
the output relay will be switched.
Muting function
By setting jumper JP1 the muting function is acti-
vated. Blocked or defective elements are de-
tected. After appr. 45 seconds the light curtain
ignores these elementes according to following
muting rules:
cegard TM /Max-74
cegard TM /Max-114
cegard TM /Max-154
For safety reasons the blocked or defective ele-
ments may not be situated next to each other. The
protection field can not detect objects within this
area.
© CEDES
cegard
/Max an outstanding func-
max. 1 element
max. 2 elements
max. 2 elements
TM
/Max
However if two elements situated next to each
other are defective or blocked, the output relay will
be switched.
The muting function may be deactivated by
removing JP1 depending on national codes and
regulations, i.e. all light beams are used for object
detection.
The installer is fully responsible for complying to
local codes and for correct installation.

Inactive mode

The protective function may be deactivated i.e. for
servicing elevator cars. To deactivate move hand
slowly from top towards bottom. The light curtain
remains deactivated for appr. 10 seconds and the
buzzer beeps.
Installation
Due to the large optical aperture angle and the
automatic calibration feature there is no alignment
needed as long as the edges are within the aper-
ture angle (page 4, picture
For installation of opto edges please note
(page 4) that,
• both cables exit the same direction
• they are securely fastened
• they must not be bent or be exposed to tension.
• the cable is not forced, stretched or squeezed
• the cable is well fastened and routed
• ensure a cable radius > 80 mm
• avoid soiling of opto edges
• avoid contamination by oil or greasy liquids
• avoid obstruction from door drives etc. in the
protective area
• avoid interference with other infrared sources
like single opto sensors, low energy bulbs, di-
rect sun light, etc.
Installation of control unit:
• Fix the control unit with 4 screws near the door
drive
• Connect terminal protective earth PE with low
impedance (< 10 Ω) to protective earth of the
power supply.
Installation of mounting kits and accessories
• Please see separate installation instructions
part no. 101 232
CEDES
- ).
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