Cedes APS - Code Tape; Elongation of the Code Tape; Mounting Clips

APS English
8 © CEDES | V 2.2
5.6 Code tape
Table 1: Technical data for the code tape
5.7 Elongation of the code tape
Two factors influence the length of the code tape (and installation length) and therefore the incremental distance
between two consecutive code elements:
• The dead weight as a function of the length of the code tape and the tension weight. This elongation is fixed and
does not change during operation.
• The thermal expansion factor of the code tape material. The elongation changes during the operation depending
on the environmental conditions.
Table 2: Elongation as a function of the code tape length and of the temperature
It is the system integrator‘s responsibility to consider these influences regarding the application. For more details, refer
to the APS Safety Manual.
5.8 Mounting clips
The code tape is fixed to the elevator hoistway using special clips that allow for vertical movement of the code tape but
prevent any horizontal or twisting movements.
The code tape is the reference for the system and carries
the absolute and unique code information for identifying
the position of the actual sensor position. The touchless
and wear-free operating principle of the APS system
ensures an almost maintenance-free service.
The code tape can be mounted at any position in the
hoistway (for example, on the guide rail, C-profiles,
landing door operator or landing door sill). It is installed
free-hanging. The APS sensor needs to have uninterrupted
sight of the code tape over the entire length of the travel
distance.
Material Stainless steel body (1.4310)
Max. manufacturing length 1,500 m
Width of code tape 19 mm
Thickness of code tape 0.6 mm (steel body 0.2 mm)
Weight per meter 37.5 g
CAUTION
Possible health risks
 Use only the original CEDES code tape.
 Repairs to the code tape are not permitted.
Length Elongation caused by
Dead weight
incl. tension weight 10 kg
Thermal Expansion
Temperature difference [deg C]
Relative Absolute 20 40 60 85
[m] [%] [mm]
(+10 ... +30)
[mm]
(0 ... +40)
[mm]
(-20 ... +40)
[mm]
(-20 ... +65)
[mm]
10 0.012 1.2 3.2 6.4 9.6 13.6
20 0.012 2.4 6.4 12.8 19.2 27.2
50 0.013 6.4 16.0 32.0 48.0 68.0
70 0.013 9.3 22.4 44.8 67.2 95.2
100 0.014 14.0 32.0 64.0 96.0 136.0
200 0.016 32.5 64.0 128.0 192.0 272.0
500 0.023 115.9 160.0 320.0 480.0 680.0
Thermal expansion factor: 1.6 × 10
-5
K
-1