Safety Advice; Adjustment; Installation; Installation Of Opto Edges - Cedes cegard/Lift LI Mode D'emploi

cegard/Lift LI
Label Description
GND Negative power supply connection
(0 V = direct current, DC)
+24 V Positive power supply connection
(24 V = direct current, DC)
WK Common contact
RK NC output. Status is in idle, respectively
monitored area interrupted or "SigIn" = 0 V
connected with the WK connection
AK NO output. In operation and monitored area
free/uninterrupted, connected with the WK
connection
SigIn Test input for the testing of the system
Status Status of surveillance area, independent of
signal "SigIn", semiconductor output
SigOut Status of surveillance area, dependent of
signal "SigIn", (analogue relay output)
Information regarding the signal processes
(Chapter 7)
Electrical data of the interfaces (Chapter 12)
The control unit light curtain must be earthed/
grounded!

SAFETY ADVICE

Overcurrent protection shall be provided
according to DIN EN 60204-1:2019-06 (see
Chapter 7).
The electrical equipment shall be wired
according to DIN EN 60204-1:2019-06.
5.4

Adjustment

For cegard/Lift LI, no alignment is necessary as long as the
receiver elements are located within the aperture angle of
the emitter edge and vice versa (Figure 3).
R
Figure 3:
Aperture angle and beam cross-section
This simplifies the installation as the door edges do not
need to be especially aligned with one another.
5.4.1 Reflection
Reflections occur if there is a reflective surface parallel or
near the monitored area e.g. a tiled shaft wall (figure 4).
The reflection is eliminated for the most part by calibration,
use of the CEDES mounting kits and observance of the
minimum distances. The optical axis must be at least 5 cm
away from the shaft wall (see also Chapter 14).
© CEDES | V 2.7
E
40°
Reflective surface
Min. 5 cm
Tx
Optical axis
Figure 4:
Reflection
6.

Installation

6.1

Installation of opto edges

When installing the opto edges the following has to be
observed
 The emitter and receiver should not be rotated 180°
when mounting. That means, the connection cable of
the door edge must come out of the top (Figure 5).
Tx
Rx
Figure 5: Alignment of emitter / receiver
 The opto edge must be min. 5 cm away from the shaft
wall.
 No strain to be put on the connection cable and it may
not be crimped or pinched.
 The connection cables should be well fastened and
guided. They may not move or rub for any length of
time.
 Avoid dirt and scratches.
 The opto edge should be well screwed down with the
screws supplied. In case of emergency the screws are
secured against loosening with the usual methods.
When using multiple light curtain systems near one

another, no emitter beams can be emitted in the
direction of another system's receiver. The light curtain
systems could interact with one another. For elevators
with door openings at both ends of the cabin, the
emitter and receiver door edges of the two doorways
should therefore be arranged alternately to one another
(Figure 6).
English
Rx
Tx Rx
5