Code Tape Presence Control; Environmental Requirements - Cedes APS Installation And Operation Manual

APS
5.8.1 guide clip
This clip is for the horizontal positioning (guiding) of the code tape. It guarantees the free vertical sliding of the code
tape.
figure 8: Guide clip (no positioning bridge)
5.8.2 Position indicator clip
In addition to the functionality of the guide clip, the position indicator clip allows the APS sensor to detect the absolute
position using the positioning bridge of the clip.
The APS sensor reliably detects clips with positioning bridges at elevator speeds of less than ±0.3 m/s (e.g. when
approaching the destination floor). An additional clip bit is then set in the data protocol (refer to the APS Safety Manual).
The information can be used to determine the exact position of the floor on a teaching ride and to compensate for
building shrinkage (building compression).
figure 9: Position indicator clip (with
positioning bridge)
Where floor/door zone detection with the position indicator clips is required, it must be ensured that the clips have the
same offset on each floor relative to the landing door sill. It is therefore important that the usage of such functions is
implemented into the downstream processing unit. The mounting of the code tape and APS sensor must then follow the
guidelines given by the system integrator.
5.9

Code tape presence control

The APS system provides a position and velocity as long as the code tape is correctly installed all along its operational
length.
It is the system integrator's responsibility to check and guarantee this during regular operation as well as after any
exceptional event, e.g. a power down, before restarting any regular operation. The APS system itself is not able to
detect e.g. a vertical movement of the code tape. The integrator can do this either via a "Code tape presence sensor",
another adequate mechanism fulfilling this function (e.g. control routines with position indicator clip) or an appropriate
mounting of the code tape. For more details, refer to the APS Safety Manual.

5.10 Environmental requirements

The creepage and clearance distances are designed according IEC 60664-1 for operational altitudes below 5,000 m
above sea level (uppermost height of application e.g. top of the building). Do not use the product above this.
© CEDES | V 2.2
figure 10: Reading of the position
indicator clip
figure 11: Detection of building
compression
English
9