En 81-20 Light Curtain - Mounting Requirements; Mounting Instructions - Cedes cegard/Mini-CC Guia De Instalacion

cegard/Mini-CC

EN 81-20 light curtain - mounting requirements

EN 81-20 requires a detection capability of 50 mm up to a height of 1,600 mm of the door opening. CEDES offers
three light curtains which fulfill this requirement in different installation situations. The light curtain with 36 elements
achieves a 50 mm resolution even at a distance of „0 mm" between the two edges. The light curtains with 20 and 32
elements must be installed recessed according to the minimum distance ‚d' to the door opening or to the front edge
of the door as shown below.
Static mounting
min. d
min. d
Mounting position (20 elements)
Static installation only
1000
900
800
700
600
500
400
300
200
100
0
1 1.5 2 2.5
Distance between Rx and Tx (m)

Mounting instructions

1. Mount the cegard/Mini-CC edges onto the elevator.
2. Guide the cables to the elevator controller using
appropriate mounting material, e.g. cable protection
tubes, neoprene cable ties or cable guide wires
depending on the type of mounting kit used.
3. Connect the cegard/Mini-CC to the door controller.
Rx cable connection
© CEDES | V 2.0
min. d
min. d
450
400
350
300
250
200
150
100
50
0
3 3.5 4
brown U
SP
blue GND (0 V)
black Output (push-pull)
white Selectable output logic
Dynamic mounting
min. d
min. d
min. d
Mounting position (32 elements)
Static and dynamic installation
1 1.5 2 2.5 3
Distance between Rx and Tx (m)
` Make sure both connectors are on top.
` Make sure the detection area between the edges is not
interrupted by door wings, cables, etc.
` Make sure the optical elements (black circles) on each
sensor edge are facing each other.
` Make sure that the blue plug is plugged into the blue
connector and the white plug is plugged into the white
connector.
` Improperly fixed and guided cables can reduce cable
lifetime drastically. Cable swinging and snagging in the
hoistway can lead to cable damage.
` To avoid EMI problems, rout cegard/Mini-CC cables as
far away as possible from the door drive motor or motor
inverter (VVVF-drives).
Tx cable connection
Rx and Tx
Cabin walls
Cabin door
d
Area with a resolution
> 50 mm
min. d
Mounting position (36 elements)
Static and dynamic installation
No restrictions regarding the mounting
positions of the light curtain are in place.
3.5 4
brown U
SP
blue GND (0 V)
black Not used
white Not used
English
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