Cedes APS User manual

RoHS
C US
Installation and Operation Manual
111 700 en | 180430 | V 2.2
English Pages 2 – 26
CEDES AG is certified according to ISO 9001: 2015
APS - Absolute Positioning System

APS English
2 © CEDES | V 2.2
1. About this manual
This installation and operation manual, with metric
measurements is the original version.
The version number is printed at the bottom of each page.
To make sure you have the latest version, visit www.cedes.
com where this manual and related documents can be
downloaded.
1.1 Measurements
Measurements are, if not stated otherwise, given in
mm (non-bracketed numbers) and inches (numbers in
brackets).
1.2 Related documents
APS datasheet en
Part No. 001 201 en
APS Safety Manual en
Part No. 113 317 en
1.3 CEDES headquarter
CEDES AG
Science Park
CH-7302 Landquart
Switzerland
CEDES AG reserves the right to modify or change technical data without prior notice.
Contents
1. About this manual 2
1.1 Measurements 2
1.2 Related documents 2
1.3 CEDES headquarter 2
2. Safety information 3
2.1 Non-intended use 3
3. Symbols, safety messages 3
3.1 Safety messages categories 3
4. Introduction 4
4.1 Features of the APS 4
4.2 Category 4
5. Overview 4
5.1 Type description 4
5.2 APS system integration 5
5.3 Intended use 7
5.4 System segregation 7
5.5 APS sensor 7
5.6 Code tape 8
5.7 Elongation of the code tape 8
5.8 Mounting clips 8
5.9 Code tape presence control 9
5.10 Environmental requirements 9
5.11 System component overview 10
6. Installation and adjustment 10
6.1 Installation overview 11
6.2 Unpack and prepare the code tape
for final installation 12
6.3 Installation of the APS sensor 15
6.4 Clip installation and adjustment
of the APS system 20
7. Electrical connection 21
7.1 Interface from the APS sensor
to the downstream processing unit 21
8. Start-up 22
9. Operation 22
10. Troubleshooting 23
11. Maintenance 23
12. Disposal 24
13. Product label 24
14. Technical Data 25
15. Dimensions (all dimensions in mm) 26

APS English
© CEDES | V 2.2 3
2. Safety information
The APS was developed and manufactured using state-of-
the-art systems and technologies. However, injury and/or
damage to the sensor can still occur.
To ensure safe conditions:
Read all enclosed instructions and information and
make sure you have understood it.
Follow the instructions given in this manual carefully.
Observe all warnings included in the documentation
and attached to the sensor.
Do not use the sensor if it is damaged in any way.
Keep the instruction manual on site.
It is the sole responsibility of the planner and/or installer
and/or buyer to ensure that this product is used according
to all applicable standards, laws and regulations in order
to ensure safe operation of the whole application.
The safety of the whole system is the responsibility of the
system integrator. For safety-relevant use, the system
integrator must only use the APS for the application as
defined in this manual and according the instructions
given herein or in the APS safety manual.
The manufacturers of the each of the following, system,
controller and drive, together with the installer, the
operator and those responsible for itsmaintenance have to
follow the system integrator’s instructions.
Only personnel authorized and instructed by the system
integrator are allowed to operate, install and maintain the
APS system.
Any alterations to the system by anyone (e.g. the buyer,
installer or user) may result in unsafe operating conditions.
CEDES is not responsible for any liability or warranty claim
that results from such manipulation. Failure to follow
instructions given in this manual and/or other documents
related to the APS may cause customer complaints, serious
call backs, damage, injury or death.
2.1 Non-intended use
The APS must not be used for:
• Safety applications which do not comply with the
regulations contained in the Chapter 5.3.
• Equipment in explosive atmospheres
• Equipment in radioactive environments
• Equipment in aggressive environments
Use only specific and approved safety devices for such
applications, otherwise serious injury or death or damage
to property may occur!
3. Symbols, safety messages
3.1 Safety messages categories
Warning of serious health risks
WARNING
Serious health risks
Highlights critical information for the safe use
of the sensor. Disregarding these warnings
can result in serious injury or death.
Follow the measures highlighted by the
triangle-shaped arrows
Consult the safety information in Chapter
2 of this manual
Caution of possible health risk
CAUTION
Possible health risks
Highlights critical information for the safe
use of the sensor. Disregarding these
warnings can result in injury.
Follow the measures highlighted by the
triangle-shaped arrows
Consult the safety information in Chapter
2 of this manual
Notice of damage risk
NOTICE
Risk of damage
Disregarding these notices can lead to
damage to the sensor, the door controller
and/or other devices.
Follow the measures highlighted by the
triangle-shaped arrows
Symbol Meaning
Single instruction or measures in no
particular order
1.
2.
3.
Sequenced instructions
• List, in no order of importance
àReference to a chapter, illustration or
table within this document
Important Important information for the correct use
of the sensor
IMPORTANT
READ BEFORE INSTALLATION!

APS English
4 © CEDES | V 2.2
4. Introduction
The Absolute Positioning System (APS) determines the
absolute position and velocity of the elevator car by
reading a fixed installed code tape in the hoistway. It
transmits this safety related information using a specified
interface e.g. CAN2.0A or RS485 to the downstream
processing unit (e.g. elevator controller).
The APS system consists of the APS sensor, the code tape,
the guide clips and position indicator clips. The sensor is
mounted on the elevator car and the code tape is mounted
with the clips within the elevator hoistway.
The information of the absolute position is encoded
on the code tape. The APS sensor is based on a dual
camera system which scans the code tape with its own IR
illumination. The sensor evaluates the position information
from the code tape and also calculates the velocity of the
elevator car using two positions at two different times. The
position and velocity information is transmitted over the
interface to the downstream processing unit. The APS is
certified according to SIL 3 IEC 61508.
Depending on the implementation, the APS sensor can be
used to compensate for building compression relative to
the absolute hoistway position as well as detect the floor/
door zone. To do so, a special clip, the position indicator
clip, is used to mount on the code tape in the hoistway. If
the clip is detected by the APS sensor, the corresponding
bit is set to high and this information is transmitted as part
of the protocol to the downstream processing unit.
In order to make use of functions such as detection of
building compression or floor/door zone detection,
the downstream processing unit must be capable of
processing this information and set to do so.
4.1 Features of the APS
• Position and velocity output
• Absolute position up to 1,500 m with a resolution of
0.5 mm
• Velocity up to 20 m/s with a resolution of 1 mm/s
• Integrated reading of markers for building
compression compensation, no additional sensors
needed
• Level detection using position indicator clips
• Very robust system due to high light reserve and dual
camera reading
• Insensitive to dust and smoke
• CAN or RS485, (customer specific interface on
request)
• SIL 3 certified
4.2 Category
SIL 3 certified for
• safely detecting the position
• safely calculating the velocity
• safely transmitting the data to the downstream
processing unit
For more details refer to the APS Safety Manual (Part. No.
113 317).
5. Overview
Figure 1: APS system overview
Figure 1 shows the necessary components to build an APS
system with building compression compensation.
5.1 Type description
Figure 2: Type description
Camera A
(field of view)
Camera B
(field of view)
Position
indicator clip
Code tape
Connection to the
downstream
processing unit
APS sensor
Guide clip
a – b – ccc – d – ee – ff/gg – h/i – j – k, cable length in m
APS type
a: S Safety
Hardware type
b: 2 2 reading heads
Interface type
ccc : CAN CAN
485 RS485
Interface channels
d: 1 1 channel (only RS485)
2 2 channels (only CAN)
Communication protocol
ee : SP CAN standard protocol
NP CAN new protocol
RS RS485 protocol
Mounting
j: M Metric
U UNC
Plug
k: R RJ45
, cable length in m
0.5 ... 5 m
Data timing multiplier
∙Channel 1
ff : 01 1 × 5 ms = 5 ms
∙Channel 2
gg : 01 1 × 5 ms = 5 ms
Data rate
∙Channel 1
h: A 250 kbit/s (only CAN)
C 230.4 kbit/s (only RS485)
D 115.2 kbit/s (only RS485)
X Not available
∙Channel 2
i: A 250 kbit/s (only CAN)
C 230.4 kbit/s (only RS485)
D 115.2 kbit/s (only RS485)
X Not available

APS English
© CEDES | V 2.2 5
CAUTION
Possible health risks
It is the system integrator’s responsibility to
define the exact location for, and the correct
way of installing the APS system. The installer
must strictly follow the system integrator’s
instructions, as the correct installation is part
of the system's safety, which, depending on
system integration, may be required to fulfill
SIL 3. Only trained personnel are allowed to
install the APS system. During regular operation
of the elevator no installations or alterations of
the system are permitted.
5.2 APS system integration
The APS system can easily be integrated into the elevator
hoistway. It can be done along the guide rail as an
absolute positioning system as in Figure 3. An installation
along the landing door sill or landing door operator
allows also precise detection of the floor or door position
and/or to compensate for building compression. Refer to
Figure 4 and Figure 5.
APS installation location on the guide rail
Figure 3: APS on guide rail
APS sensor
on car roof
Code tape
Guide clip
on guide rail
Guide clip
on guide rail
Guide clip
on guide rail
Top tension lock
Tension weight
Bottom tension lock
Features
+ Ideal for short and medium distance elevators
+ Easy to install
• Possiblereplacementofotherabsolutepositioning
system
• Possiblemismatchtothelandingdoorsills
- No or limited compensation for building compression
(e.g. differences in thermal expansion factors)

APS English
6 © CEDES | V 2.2
APS installation location on the car door operator
Figure 4: APS on car door operator
APS installation location on the car door sill
Figure 5: APS on car door sill
Top tension
lock
Tension weight
Bottom
tension lock
APS sensor
on car door
operator
Code tape
Position
indicator clip on
landing
door operator
Features
+ Ideal for medium and long distance elevators
+ Referenced to landing door sill
+ Compensation for building compression
(e.g. differences in thermal expansion factors)
+ Easy installation and adjustment due to fact that the
position on the car roof is easy accessible
• Pre-installationofpositionindicatorclipsispossible
on the landing door operators
- Possible mismatch of landing door operator to
landing door sill
Top tension
lock
Code tape
Tension weight
Bottom
tension lock
Position indicator
clip on landing
door sill
APS sensor
on car door sill
Features
+ Ideal for medium and long distance elevators
+ Optimally referenced to landing door sill
+ Easy to adjust the position indicator clips to the
landing door sill
+ Compensation for building compression
(e.g. differences in thermal expansion factors)
• Pre-installationofthepositionindicatorclipsis
possible on the landing door sills
- More complex installation and adjustment due to fact
that the position below the car is not easily accessible

APS English
© CEDES | V 2.2 7
5.3 Intended use
The APS is designed and approved for the use in elevator applications according to EN81-1/-2, EN81-20/50 and
ASME A17.1 and A17.5.
Three SIL 3 safety relevant functions are provided:
1. To safely detect the sensor‘s absolute position relative to the code tape (2 independent position values).
2. To safely calculate the velocity of the sensor compared to the code tape (2 independent velocity values).
3. Safely transmit the acquired values.
The two positions and velocities are derived by two independent channels; therefore the APS fulfills the requirements of
ASME A17.1 (2.25.2.xx and 2.25.4.xx).
For SIL safety, the APS must only be used for the SIL listed functions. If the APS is used in other applications or for other
functions, safety is not guaranteed. For more details refer to the APS Safety Manual.
5.4 System segregation
The safety of the whole system is the responsibility of the system integrator. For safety-relevant use, the system integrator
must only use the APS for the application as defined in the safety manual and according the instructions given herein.
The manufacturers of the each of the following, system, controller and drive, together with the installer, the operator and
those responsible for its maintenance have to follow the system integrator‘s instructions. Only personnel authorized and
instructed by the system integrator are allowed to operate, install and maintain the APS system.
5.5 APS sensor
The APS sensor contains a dual camera system to determin the position of the elevator car. When the code tape is
illuminated by short infrared pulses, the APS sensor records the pattern in front of the cameras. Based on that data, the
sensor’s processor then calculates the position and velocity of the elevator car and crosschecks the results for increased
reliability. This data (one set of position and velocity values per camera) is transmitted to the downstream processing
unit via two separate CAN interfaces, one for each camera, or one RS485 interface.
Figure 6: APS sensor (front side)
5.5.1 Interface from the APS sensor to the downstream processing unit
The interface of the APS sensor uses a CAN protocol (independent channel for each camera) / RS485 protocol (one
channel for both cameras) and is connected to the downstream processing unit through an RJ45 connector. For
technical details and data protocol, refer to the APS Safety Manual.
Figure 7: APS sensor (back side)
Indicator LED
Camera window
Indicator LED
Mounting press nut
M5x10
Mounting press nut
M5x10
Indicator LED
Mounting press nut
M5x10
(UNC 10-24)
Mounting press nut
M5x10
(UNC 10-24)

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

APS English
© CEDES | V 2.2 9
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)
Figure 10: Reading of the position
indicator clip
Figure 11: Detection of building
compression
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.

APS English
10 © CEDES | V 2.2
5.11 System component overview
Table 3: APS component overview
Note: All parts in the “SUPPLY” column, which are listed as mandatory, must be original parts from CEDES.
The detailed list of material required for the installation of the APS system is provided by the system integrator.
6. Installation and adjustment
The installation of the system has always to be adapted to the type of elevator used. Depending on this, there can be
alterations to the standard installation procedure. In all cases, the installer must follow the instructions of the system
integrator. The following section describes the standard installation of the system as typically used.
No. of pieces Item Supply Remark
1 APS sensor Mandatory Incl. cable and a RJ45 connector
1 Mounting bracket Optional For the APS Sensor;
incl. assembly material for the APS sensor
1 Code tape Mandatory In code tape box;
refer to the price list for standard lengths
2 Tension lock Mandatory For code tape;
incl. cable tie
1 Tension weight 10 kg Optional Incl. assembly material
3 Code tape end cover Mandatory
1 Guide clip Mandatory Customer-specific version on request
1 Position indicator clip Mandatory Customer-specific version on request
1 APS Manual Mandatory
1 APS Safety Manual Mandatory
1 TÜV certificate Mandatory

APS English
© CEDES | V 2.2 11
6.1 Installation overview
• Step 1-1 … Step 1-4: Unpack and prepare the code tape for final installation, see Chapter 6.2.
• Step 2: Installation of the APS sensor, see Chapter 6.3.
• Step 3-1 … Step 3-5: Clip installation and adjustment of the APS system, see Chapter 6.4.
* Installation tip: Use adjustment aid for code tape
Figure 17: Step 3-1
Figure 12: Step 1-1 Figure 13: Step 1-2 Figure 14: Step 1-3 Figure 15: Step 1-4 Figure 16: Step 2
Figure 18: Step 3-2 Figure 19: Step 3-3 Figure 20: Step 3-4 Figure 21: Step 3-5
* *
*
**
Install top tension
lock. Begin to unroll
code tape from box.
Install guide clips (a)
to fix code tape; align
position indicator clips
(b) to door sills (side
view).
Read position
indicator clips via
teaching ride (side
view).
Align clips left / right
(front view).
Align clips far / near
(side view).
Install anti-swing,
recommended.
Continue to unroll
code tape until it
reaches required
length.
Cut code tape to
length, mount bottom
tension lock and
tension weight.
Install APS sensor
on cabin (side
view).
Use an adjustment aid
for code tape.

APS English
12 © CEDES | V 2.2
6.2 Unpack and prepare the code tape for final installation
The code tape is delivered so that it is possible to install it directly from the box. Never fully unpack the code tape initially;
otherwise the coding orientation of the code tape can be lost or the code on the code tape can be damaged. Follow
the following procedure carefully to prevent damage to the code tape and injury to the installer during installation.
Table 4: Checklist: Unpacking and preparation of the code tape
WARNING
Risk of cuts
The edges of the code tape can be sharp.
Careless handling of the code tape can
cause serious injury.
Never grab the code tape at the edges.
Wear appropriate protection when
handling code tape.
Always, use/wear cut protection gloves to
protect your hands (e.g. cut level 5).
Item Section Check
1. Whenever handling the code tape, use cut protection gloves to prevent potential injury.
2. Prepare anchor point for the top tension lock.
2.1 Go with the elevator car to the top of the shaft.
2.2 Insert screw into the elevator shaft / the pit brow as anchor point for the top tension
lock. Follow the system integrator‘s instructions.
6.2.1
¨
¨
3. Prepare the code tape for installation.
3.1 Remove the top end of the code tape from the box.
3.2 Check orientation of the code tape.
3.3 Attach the top tension lock to the code tape.
3.4 Fasten the code tape with a cable tie.
3.5 Attach the code tape end cover.
6.2.2
6.2.3
6.2.3
6.2.3
6.2.3
¨
¨
¨
¨
¨
4. Unroll the code tape
4.1 Mount the top tension lock onto the anchor point.
4.2 Remove some more of the code tape from the box.
4.3 Do a “service ride” top-down to unroll the code tape.
Safety advice:
Unroll a specific length of the code tape; then travel that specific distance.
Never unroll and travel at the same time.
4.4 Let the code tape hang freely.
6.2.4
6.2.2
¨
¨
¨
¨
5. Prepare the end of the code tape at the bottom of the elevator shaft
5.1 Cut the code tape to the final operational length as detailed in the system integrator‘s
instructions. Remember to leave an additional length for the code tape end loop.
Apply a code tape end cover to the end of the remaining code tape in the box.
5.2 Attach the bottom tension lock to the code tape.
5.3 Fasten the code tape with a cable tie.
5.4 Mount the tension weight.
5.5 Apply code tape end cover.
5.6 Let the code tape hang freely.
5.7 For safety and adjustment reasons, protect the code tape against swing and vibrations
e.g. use a bucket filled with water as a vibration damper.
6.2.5
6.2.5
6.2.5
6.2.6
6.2.5
6.2.6
6.2.6
¨
¨
¨
¨
¨
¨
¨
6. The code tape is ready for final installation (clips, tension weight holder, ...) and adjustment. 6.4

APS English
© CEDES | V 2.2 13
6.2.1 Fixation of the top tension lock
• The system integrator can chose to mount the code
tape on any place in the elevator hoistway.
• The mounting must fulfill the criteria for the code tape
presence control given in the APS Safety Manual.
• The installer has strictly to follow the system
integrator‘s instructions.
• Make sure the code tape hangs straight down without
twisting.
• Important: To read the code tape, the sensor
needs to maintain an uninterrupted sight of it and a
constant distance of 105 mm ±15 mm.
• Important: Make sure the APS sensor can read
the code tape at every possible elevator position,
including where it crosses into the emergency limit
switch.
6.2.2 Removing the code tape from the box
The code tape box is used as a reel when uncoiling.
Open the box exactly as instructed to ensure
comfortable and fast APS installation.
The code tape uncoils with the highest position first
and the lowest position last. The highest value is equal
to the top position, the lowest value is equal to the
bottom position.
The code starts at any arbitrary value.
1. Open the code tape box at the latch (Figure 22).
Figure 22: Code tape box: Open here
2. Hold the code tape on the end piece. Carefully pull
out the code tape.
Figure 23: Carefully pull the code tape from the box
3. The code tape is now ready for uncoiling.
6.2.3 Orientation of the code tape
Important: Before mounting the code tape, make sure
that the “LEFT markings” on the code tape are on the left
side (Figure 24).
Figure 24: Code tape markings (left side)
CAUTION
Possible health risks
It is the system integrator’s responsibility to
define the exact location for, and the correct
way to install, the code tape as described in
Chapter 5.5. The installer must strictly follow
the system integrator’s instructions, because
the correct installation is part of the system's
safety (depending on system integration, it
can be SIL 3).
900 mm
NOTICE
Risk of damage
Do not use the code tape if the “LEFT markings”
is on the right side. It is packed the wrong way.
Return it to CEDES for replacement. Due to
safety reasons, the installer is not allowed to
unpack the code tape in any other way.

APS English
14 © CEDES | V 2.2
1. Thread the end of the code tape into the top tension
lock (Figure 25).
Figure 25: Top tension lock threading
2. Straighten the code tape. Fasten it with a cable tie
around the tension lock (Figure 26).
Figure 26: Top tension lock
3. Cut off the excess code tape. Use a tinsnip which can
cut a minimum of 0.7 mm of stainless steel. Attach
the provided code tape end cover to the end of the
code tape to prevent potential injury (Figure 27).
Figure 27: Code tape end cover
6.2.4 Unroll the code tape
Mount the top tension lock with the code tape onto the
pit brow. There must be an unobstructed view of the
code on the code tape.
Carefully uncoil the code tape. Guide it to the bottom
of the elevator.
Unroll the code tape with a “service ride”. Never drop
the code tape. This could damage the code tape and
have potentially dangerous consequences.
Important: Keep a minimum radius of 500 mm
when uncoiling the code tape (Figure 28).
Figure 28: Minimum bending radius for code tape
Figure 29: Do not over-bend code tape
6.2.5 Attaching the bottom tension lock
Important:
Make sure to leave enough spare code tape for
mounting the bottom tension lock when cutting the
code tape after reaching the bottom of the elevator
hoistway.
Make sure the code tape is short enough so that it
never touches the floor with the tension weight under
any environmental conditions (e.g. temperature
change).
Make sure the code tape has enough operational
range so that it can be accurately read under all
environmental conditions (e.g. temperature change).
min. 500 mm

APS English
© CEDES | V 2.2 15
1. Cut the code tape to the final operational length
including code tape end loop. Use a tinsnip which
can cut a minimum of 0.7 mm of stainless steel.
Apply a code tape end cover to the remaining code
tape in the box; otherwise the code tape could be
damaged by penetrating dust and humidity.
2. Thread the code tape into the bottom tension lock
(Figure 30).
Figure 30: Bottom tension lock threading
3. Straighten the code tape. Fasten it with a cable tie
around the tension lock (Figure 31).
4. Cover the end piece with the second provided code
tape end cover in order to avoid injury on the sharp
edge (Figure 27).
Figure 31: Bottom tension lock
6.2.6 Mounting the tension weight
1. Mount the tension weight (10 kg) to the bottom
tension lock using the screws and bolts provided.
Figure 32: APS tension weight
2. Make sure the tension weight does not touch the
ground and fulfills the criteria mentioned in the
previous before.
3. Let the code tape hang freely.
4. Safety advice:
Ensure no part of the elevator comes into contact with
the code tape at any time.
5. Safety advice:
For safety and adjustment reasons, protect the
code tape against swing and vibrations e.g. use a
bucket filled with water as a vibration damper; refer
to Figure 20. Ensure the pre-installed code tape
does not cause any hazard at any point during the
installation process.
6. The code tape is now ready for final installation (clip,
tension weight holder, ...) and adjustment.
6.3 Installation of the APS sensor
CAUTION
Possible health risks
It is the system integrator’s responsibility to
define the exact location for, and the correct
way to install, the code tape. The installer
must strictly follow the system integrator’s
instructions, because the correct installation
is part of the system's safety (depending on
system integration, it can be SIL 3 level).

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16 © CEDES | V 2.2
6.3.1 Mechanical mounting
The system integrator can choose to mount the APS
sensor on different places on the elevator cabin.
The installer must strictly follow the system integrators
instructions.
Mount the APS sensor using the mounting bracket
provided; see below for correct alignment.
Ensure the LEDs on the top of the sensor can be seen
at all times during installation and maintenance work.
Important: To read the code tape, the sensor needs
to maintain an uninterrupted sight of it and a constant
distance of 105 mm ± 15 mm.
Important: Make sure the APS sensor can read the
code tape at every possible elevator position, including
where it crosses into the emergency limit switch.
Mount the cable so that it is not put under any strain
e.g. with a cable conduit.
Figure 33: Example of the mounting bracket
Figure 34: APS sensor cable entry
Figure 35: Alignment parallel to code tape (side view)
Figure 36: Alignment parallel to code tape (front view)
Figure 37: Alignment parallel to code tape (top view)
105
105

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© CEDES | V 2.2 17
6.3.2 Power and status LED
Plug the RJ45 connector of the APS system into the downstream processing unit. The installer must follow the system
integrator‘s installation instructions as the correct installation is part of the system's safety (depending on system
integration, it can be SIL 3 level).
Details for the electrical connection are described in the APS Safety Manual.
The green and red LEDs located to the left (refer to
Figure 38) indicate the status of the APS.
• The green PWR LED indicates if the supply voltage for
the APS sensor is okay.
• The red STAT LED reports internal and communication
errors.
• For safety relevant operation, read the APS error and
APS status via the CAN / RS485 bus (for details refer
to the APS Safety Manual).
Figure 38: Power (PWR) and status (STAT) LED
6.3.3 APS alignment assistant
To be able to read the code tape, the APS system must be properly aligned. Two alignment aides help to position the
APS system:
•Alignmentspotlights
•Electronicalignmentassistant
Alignment spotlights
The alignment spotlights are two red LED beams along
the optical axis of the APS sensor. They help to align the
APS sensor and the code tape.
The alignment spotlights can be activated by either:
• Powering up the sensor (while the code tape is not
in view of the cameras).
The alignment spotlights deactivate 5 min after first
recognizing the code tape.
• Waving a clean sheet of paper in front of the
cameras:
Do not use hand gestures as these may smudge the
optics of the APS sensor or the code tape.
Figure 39: Alignment spotlights in use
PWR LED (green)
STAT LED (red)
LED Color Function OFF ON Slow blinking (1 Hz) Fast blinking (5 Hz)
PWR Green Supply voltage No power Power OK - -
STAT Red Status signal No errors Reading error APS internal fault Communication error
Table 5: Power and status LED

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Electronic alignment assistant
To fine-tune the APS system’s alignment, use the electronic alignment assistant. Four red directional LEDs (triangular
in shape) and one green center LED (circular) indicate the exact APS sensor reading position compared to the vertical
centre line of the code tape.
• The electronic alignment assistant is automatically activated as soon as the APS sensor is supplied with power and
can partially read the code tape.
• The four triangles pointing to the centre are the direction indicator for the sensor‘s movement to the optimal
adjustment. Move the sensor in the direction indicated by the triangular head for better alignment.
Figure 40: Indicator of the electronic alignment assistant
Figure 41: Interpretation of the electronic alignment assistant Figure 42: Field of view of the cameras
4 × Alignment LED
POS STAT LED (green)
65 ±519
30
105 ±10
105 ±15
19 40
Code tape not visible Move right Move slightly right Position OK
Tape Tape Tape Tape

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Figure 43: Alignment procedures: APS sensor to the code tape and vice versa (the arrow indicates the moving direction)
When the sensor must be aligned with the tape: Direction of sensor movement
Left / right alignment
Left / right alignment
Far / near alignment
Far / near alignment
When the tape must be aligned with the sensor: Direction of tape movement
Tape
Tape Tape Tape Tape Tape
Tape Tape Tape Tape
Tape
Tape
Tape
Tape
Tape
Tape Tape Tape Tape Tape

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Table 6: Alignment indication from the sensor to the code tape and vice versa (at 105 mm distance between APS sensor and code tape)
Alignment Alignment LEDs Alignment Alignment LEDs
Left (-) /
right (+) Signaling Limits LED [mm] Near (-) / far (+) Signaling Limits LED
Cannot read
tape Out of reading range Cannot read
tape Out of reading range
Too left Out of
reading range to -11.0 Too near Out of
reading range to -13.0
Slightly left -11.0 to -4.0 Slightly too
near -13.0 to -7.0
Position OK -4.0 to +4.0 Position OK -7.0 to +7.0
Slightly right +4.0 to +11.0 Slightly too
far away +7.0 to +13.0
Too right +11.0 to Out of
reading range Too far away +13.0 to Out of reading range
Cannot read
tape Out of reading range Cannot read tape Out of reading range
6.4 Clip installation and adjustment of
the APS system
The clips serve the following functions:
• Guideclip:
- Guides/aligns the code tape along the optical axis of
the APS sensor.
- Prevents the code tape from swinging and twisting.
• Positionindicatorclip:
- Guides/aligns the code tape along the optical axis of
the APS sensor.
- Prevents the code tape from swinging and twisting.
Depending on the downstream processing unit, the
APS sensor can detect the exact position of the position
indicator clip. The downstream processing unit can use
this information
- to detect doors and floors.
- to compensate for building shrinkage.
6.4.1 Installation of the guide clip
1. Whenever handling the code tape, use cut protection
gloves to prevent potential injury.
2. Insert the code tape into the clip guide rails (Figure
44).
Figure 44: Guide clip is inserted (left) and turned 90º clockwise
3. Turn the clip by 90º.
4. Fix the clip using appropriate screws and ring washer.
6.4.2 Installation of the position indicator
clip
1. For all operations with the code tape use cut
protection gloves to prevent of cutting.
2. Insert code tape in the clip guide rails (Figure 45).
Figure 45: APS position indicator clip is inserted (left) and turned
90º clockwise
3. Turn the clip by 90º.
4. Fix the clip using appropriate screws and ring washer.
5. The recommended distance between the clips
depends on the nominal speed of the elevator and
other factors such as airflow in the elevator shaft. A
typical value is 3 - 5 m. It is important that enough
clips are used to prevent the code tape from twisting.
Note: The limits are approximate values, they differ slightly from sensor to sensor (±0.5 mm).