Kübler Ants LES02 User manual

Manual
R67073.0002 - 1
Ants LES02

Table of Contents Kübler Group
2 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
Table of Contents
1 Document ........................................................................................................................ 3
2 General Information........................................................................................................ 4
2.1 Target Group........................................................................................................... 4
2.2 Symbols used / Warnings and Safety instructions.................................................. 4
2.3 Use According to the Intended Purpose ................................................................. 5
2.4 Other Applicable Documents .................................................................................. 5
3 Product Description ....................................................................................................... 6
3.1 Function of the Measuring System ......................................................................... 6
3.2 Technical Data ........................................................................................................ 6
3.2.1 Sensor....................................................................................................... 6
3.2.2 Coded Band .............................................................................................. 7
3.3 Variants Overview................................................................................................... 8
3.4 Sensor Type Plate .................................................................................................. 8
4 Installation....................................................................................................................... 9
4.1 Electrical Installation ............................................................................................... 9
4.1.1 General Information for the Connection.................................................... 9
4.1.2 Connection Color Coding.......................................................................... 9
4.1.3 Connection Legend................................................................................... 10
4.1.4 Sensor Terminal Assignment.................................................................... 10
5 Commissioning and Operation ..................................................................................... 11
5.1 Status LED.............................................................................................................. 11
5.2 Failures ................................................................................................................... 11
5.3 CAN Communication .............................................................................................. 11
5.4 Data Transmission .................................................................................................. 12
5.5 CAN Error Codes .................................................................................................... 13
6 Disposal........................................................................................................................... 17
6.1 Disposal .................................................................................................................. 17
7 Annex............................................................................................................................... 18
7.1 Decimal / Hexadecimal conversion table ................................................................ 18
8 Contact ............................................................................................................................ 20
Glossary .......................................................................................................................... 21

Kübler Group 1 Document
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 3
1 Document
This document is the English translation of the original German version.
Publisher Kübler Group, Fritz Kübler GmbH
Schubertstraße 47
78054 Villingen-Schwenningen
Germany
www.kuebler.com
Issue date 10/2020
Language version German is the original language
Copyright © 2020, Kübler Group, Fritz Kübler GmbH
Legal notices
All of the contents of this document are protected by the rights of use and copyrights of Fritz
Kübler GmbH. Any duplication, modification, further use and publications in other electronic or
printed media, as well as their publication in the Internet, even partially, is subject to the previ-
ous written authorization of Fritz Kübler GmbH.
The brand names and product brands mentioned in this document are trademarks or registered
trademarks of the respective titleholders.
Subject to errors and changes. The stated product features and technical data shall not consti-
tute any guarantee declaration.

2 General Information Kübler Group
4 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
2 General Information
Please read this document carefully before working with the product, mounting it
or starting it up.
2.1 Target Group
The device may only be planned, mounted, commissioned and serviced by persons having the
following qualifications and fulfilling the following conditions:
• Technical training.
• Briefing in the relevant safety guidelines.
• Constant access to this documentation.
2.2 Symbols used / Warnings and Safety instructions
DANGER Classification:
This symbol, together with the signal word DANGER, warns against
immediately imminent threat to life and health of persons.
The non-compliance with this safety instruction will lead to death or
severe adverse health effects.
WARNING Classification:
This symbol, together with the signal word WARNING, warns against
a potential danger to life and health of persons.
The non-compliance with this safety instruction may lead to death or
severe adverse health effects.
CAUTION Classification:
This symbol, together with the signal word CAUTION, warns against
a potential danger for the health of persons.
The non-compliance with this safety instruction may lead to slight or
minor adverse health effects.
ATTENTION Classification:
The non-compliance with the ATTENTION note may lead to material
damage.

Kübler Group 2 General Information
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 5
NOTICE Classification:
Additional information relating to the operation of the product, and
hints and recommendations for efficient and trouble-free operation.
2.3 Use According to the Intended Purpose
Combined with a suitable evaluation unit, the measuring system serves for the determination of
the absolute position of elevator cars. The measuring system can be used as a position and
speed sensor.
The measuring system and its evaluation unit must meet the requirements mentioned in chapter
Technical Data [}6].
2.4 Other Applicable Documents
All technical data, as well as the mechanical and electrical characteristics, are specified in the
corresponding data sheets of the products, for special versions in the.corresponding customer
drawing of the product.
The above mentioned documents, the original declarations of conformity and the relevant certi-
ficates can be downloaded from our homepage:
www.kuebler.com/docufinder.
For the evaluation of the safe sensor, observe the respective operation manual of the system to
be commissioned. The evaluation unit or control must comply with the requirements of the inter-
face description and with the safety-related technical specifications.

3 Product Description Kübler Group
6 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
3 Product Description
3.1 Function of the Measuring System
The sensor that is mounted on the elevator car and the coded band that is tensioned in the
shaft form together the measuring system. The sensor converts a linear motion into a digital po-
sition signal. To this purpose, it evaluates the band, which is coded by two rows of holes.
The PSU02 evaluation unit serves for the safe position detection, for the implementation of the
limit switch, inspection limit switch, time-delayed limit switch, unintended car movement (UCM)
functions and for the safe bypass of the safety circuit in case of early door opening/car level
control for elevator facilities in accordance with EN81-20 and EN81-21.
3.2 Technical Data
NOTICE Observe the configuration
The performance characteristics and the mechanical design of the
product depend on the selected configuration (according to order
code).
Extracts of the main technical data are listed below. All other characteristic values can be found
in the corresponding product data sheets.
3.2.1 Sensor
Mechanical characteristics sensor
Operating temperature -10°C…+70°C [14°F … 158°F]
Storage temperature -15°C…+80°C [5°F … 176°F]
Protection level according to EN 60529 IP54
Air humidity < 90% (non-condensing)
Installation height <2000m [6562ft]
Material Housing Aluminum
Weight appr. 0,55kg [19.40oz]
Maximum measuring length 392m [1286ft]
Maximum speed
certified
functional
8m/s [26.25 ft/s]
12m/s [39.37 ft/s]
Resolution
certified
functional
1mm
[0.5mm]
Accuracy ±1mm

Kübler Group 3 Product Description
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 7
Mechanical characteristics sensor
Operating temperature -10°C…+70°C [14°F … 158°F]
Storage temperature -20°C…+80°C [-4°F … 176°F]
Protection level according to EN 60529 IP54
Air humidity < 90% (non-condensing)
Installation height <2000m [6562ft]
Material Housing Aluminum
Weight appr. 0.55kg [19.40oz]
Maximum measuring length 392m [1286ft]
Maximum speed 8m/s [26.25 ft/s]
Resolution 1mm
Accuracy ±1mm
Electrical characteristics sensor
Supply voltage 10… 30VDC
Supply voltage according to UL 1310 Class 2
Supply voltage according to EN 60950 PELV
Current consumption max. 100mA
Protection class according to EN 61140 III
EMC
Relevant Standards EN12015:2014
EN12016:2013
UL - Underwriters Laboratories
UL approval File E498900
Relevant Standards UL508
CAN Characteristics
Protocol CAN proprietary
Transmission interval every 2 ms
Baud rate 250kbits
Terminated yes
Max. distance to an evaluation unit 100m (CAN bus),
twisted pair 0.5 mm2, with shield
For further information, refer to the Ants LES02 CAN manual.
3.2.2 Coded Band
Material V2A spring-tensioned stainless steel, edges broken
Dimensions 16x0.4mm
Weight 50g /m
Thermal expansion 16x10-6/K

3 Product Description Kübler Group
8 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
3.3 Variants Overview
Sensor type Safety classes
LEB02 -
LES02 SIL3 (EN81-50)
LES02 with PSU02
ATTENTION Limited combination
The PSU02 evaluation unit may only be operated in combination with
the Ants LES01 or Ants LES02 sensor.
3.4 Sensor Type Plate
Example of a type plate on the product:
4
910
3 5 6 7 8
1112
1 2
27021597902745355
1 Supply voltage 2 Type /Order code
3 Manufacturer and address 4 Current consumption
5 Terminal Assignment 6 Observe the operation manual
7 UL marking 8 Observe the operation manual
9 Datamatrix code 10 Coded band orientation
11 CE marking 12 Serial number

Kübler Group 4 Installation
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 9
4 Installation
4.1 Electrical Installation
4.1.1 General Information for the Connection
ATTENTION Destruction of the device
Before connecting or disconnecting the signal cable, always discon-
nect the power supply and secure it against switching on again.
NOTICE General safety instructions
Make sure that the whole plant remains switched off during the elec-
trical installation.
• Make sure that the operating voltage is switched on or off simultan-
eously for the device and the downstream device.
NOTICE Traction relief
Always mount all cables with traction relief.
NOTICE Interference susceptibility
Proceed as follows:
• Connect the shield to the device housing.
• Comply with the maximum cable length for stub lines and for the
total length of the bus network.
• Check the maximum supply voltage on the device.
4.1.2 Connection Color Coding
Part of the cables are identified by a color coding, part of them by a numerical coding. Abbrevi-
ation of the colors:
Abbreviation Color Abbreviation Color
WH White BU Blue
BN Brown RD Red
GN Green BK Black
YE Yellow VT Violet
GY Gray GY-PK Gray-Pink
PK Pink RD-BU Red-Blue

4 Installation Kübler Group
10 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
ATTENTION Destruction of the electronics
When confectioning the sensor cable, always take care to ensure
sufficient ESD protection.
4.1.3 Connection Legend
+V: Supply voltage +V DC
0V: Voltage supply GND (0V)
CAN_H: Positive CAN Signal (Dominant High)
CAN_L: Negated CAN-Signal (Dominant Low)
C+, C: Clock signal
D+, D: Data signal
n.c.: Do not connect
4.1.4 Sensor Terminal Assignment
Interface Cable, 3m, shielded, open cable end
CAN Signal: +V 0V/GND CAN_H CAN_L n.c. n.c.
Core color: BN WH GN YE GY PK

Kübler Group 5 Commissioning and Operation
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 11
5 Commissioning and Operation
5.1 Status LED
A two-color LED signals the status of the measuring system:
Display LED Meaning
LED off No voltage
LED green Supply voltage is applied to the device
LED green flashing Communication with the bus present
LED red The sensor is in locked mode
LED red flashing An error that did not lead to the locked mode occurred
5.2 Failures
The measuring system does not communicate with the control
a) Check the supply voltage.
b) Check the correctness of the electrical installation, in particular of the wiring.
c) Make sure that the CAN bus connection is properly installed. If necessary use a CAN mon-
itor to check data transmission.
d) Make sure that the evaluation unit is compatible with the sensor.
e) Make sure that the orientation of the coded band after installation matches the orientation
indicated on the sensor type plate (orientation of the large and small holes).
f) Check the slides for important wear.
g) In the event of an error, perform a sensor reset.
5.3 CAN Communication
A thorough knowledge in the structure, use and evaluation of CAN buses, as well as in BUS
protocols, is a prerequisite for understanding the first section of this chapter.
This section is not necessary for the functional installation and commissioning of a certified
evaluation device. If the complete system is not operational, the section below describes pos-
sible error diagnoses and recoveries. In case of doubt, contact the manufacturer.
The univocal exchange protocol described below applies to the use of the device with an ex-
ternal evaluation unit. An evaluation device wanting to use this device must comply with all spe-
cifications. If all indicated measures are implemented, an SFF exceeding 99% is achieved.
In the event of mechanical damages of any kind, the complete system must be replaced. Only
worn slides are excluded here. These indicate a mounting error of the facility.

5 Commissioning and Operation Kübler Group
12 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
DANGER Safety functions of the evaluation unit
In the event of the absence of position data, the evaluation unit must
use suitable means to achieve a safe state of the elevator plant (also
depending on the safety function).
Whether operation can be resumed after a failure, thus whether a re-
set is allowed, is determined by the commands stored in the evalu-
ation unit.
The architecture of the device provides that two independent channels (called Master and Slave
below) send alternately position data. Even ID numbers are assigned to the master, uneven ID
numbers to the slave. Standard position CAN packets are 4 bytes long, all other CAN packets
are 8 bytes long.
The meaning, timing and other constraints are specified as follows. The possible 8 data bytes of
a CAN message are numbered from 1 to 8, 1 being the chronologically first. The preamble "0x"
indicates hexadecimal figures. Data values not described in more detail here are reserved for
internal use in the device.
5.4 Data Transmission
Measure Description
Alternating transmission
by the channels
In normal operation, every channel sends its position data all 4 ms.
The Slave synchronizes on the half of the Master interval, in order to
send positions all 2 ms.
The data must
be checked for plausibil-
ity
The positions must be checked for plausibility in an evaluation unit in
order to detect transmission errors that could not be corrected by the
CAN protocol (depending on the SIL value of the complete system).
Specified CAN-ID
use
The CAN IDs are used in the 11-bit standard.
The Master is always assigned even IDs, the Slave is assigned the
corresponding ID + 1.
Permitted CAN IDs. The following CAN IDs are allowed:
0x10(0x11) System messages, 0x20(0x21) Error messages,
0x30(0x31) Status messages, 0x80(0x81) Position messages.
Sending these messages may only be performed by the Ants LES02
(exception: (un)lock message, see below).
Ants LES02 transmits
system messages
System messages have ID 0x10(0x11).
Length of the message is 8 bytes.
Byte 8 describes the status of the subsystem message:
0xF0 LES lock(ed), 0xFF LES unlock.
Bytes 1-2 contain the unlock key (only in case of LES locked, LES
unlock).
An external participant may lock the sensor by sending the LES
lock(ed) subsystem message.
Continuation: Data Transmission

Kübler Group 5 Commissioning and Operation
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 13
Ants LES02 transmits
detected errors
Every channel transmits detected errors via error messages.
Error messages have ID 0x20(0x21).
Length of the message is 8 bytes.
Byte 8 describes the error type.
Bytes 1-7 show additional information, which is issued according to
the error type. This information is not specified more in detail, but it
should be recorded in the event of an error for diagnostic purposes
by the manufacturer.
A list of all error codes is attached. The evaluation unit must make
the recorded errors available to specialized personnel.
Ants LES02 transmits
status messages
Every channel also transmits status messages outside of normal op-
eration. Status messages have ID 0x30(0x31).
Length of the message is 8 bytes.
Byte 8 describes the sub status message: 0x0F channel starts (here
byte 1-4 CRC of the LES software), 0xF0 channel ready.
In channel ready, the meaning of the byte is not specified.
Ants LES02 transmits
position data
Every channel transmits its position data.
Length of the message is 4 bytes.
Bytes 1-3 show the global position of the channel (MSB first). This
data must be checked for plausibility (see above).
Byte 4 is not specified further.
Ants LES02 is in
locked state
Ants LES02 is in locked state and no longer sends messages, ex-
cepted the LES locked subsystem message (see above) with the
current unlock key.
An evaluation unit can unlock the sensor by sending a LES unlock
subsystem message together with the currently valid unlock key in
bytes 1-2. The key of the LES locked message is constantly chan-
ging. The validity time window of an unlock key is 30 ms. Therefore,
an evaluation unit must read this key and send without great delay a
LES unlock subsystem message (ID 0x10, see above) including the
key read.
The repeated unlocking of the LES after an error is the responsibility
of the evaluation circuit.
Only Ants LES02 is
allowed to send via the
CAN bus
Only Ants LES02 itself is allowed to send messages via the CAN
bus. The only exception is the sending of LES unlock subsystem
messages by the evaluation unit. In an unauthorized message is de-
tected, an error is issued and the sensor locks.
5.5 CAN Error Codes
In general, the sensor cannot be repaired. A defective device must be replaced as a whole.
NOTICE Traceability of safety components
It must be noted that the device generally is a subsystem of a safety
system and that therefore the traceability of safety components must
be ensured.
So please record which device (serial number) has been replaced
with which new device (serial number).

5 Commissioning and Operation Kübler Group
14 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
In the event of an error due to the sensor, a number of measures must be implemented. The er-
ror can be read out via the connected evaluation unit for error detection (see the corresponding
operating manual for details).
Error causes and measures to be implemented
Worn slides (critical error):
In this exceptional case, it is allowed to replace only the slides (see above). Since, if mounting
has been performed properly, no forces act on the slides, worn slides indicate an installation er-
ror.
• Check whether the coded band is mounted vertically and firmly tensioned. It must travel
through the slides without exerting pressure on the slides.
Dirt on the coded band causing dirt in the sensor (rare error):
• Check and clean the coded band.
• Disconnect the sensor before cleaning it with compressed air.
• Wait at least one minute before re-connecting the device.
CAUTION Behavior in the event of an error
After every error switching the device in the locked state, an error-
free travel along the whole length of the elevator shaft must imperat-
ively be performed in normal operation. Only after this the elevator
can be released for operation
If errors occur repeatedly, their causes must be determined. If the
standard troubleshooting measures have not been sufficient, the
whole device must be replaced.
If mechanical parts of the device are bent or damaged, the device
must in any case be replaced. It must furthermore be checked how a
mechanical stress could be exerted on the device, since in normal
operation no forces shall be applied on the device (except the low
friction forces due to the band).

Kübler Group 5 Commissioning and Operation
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 15
Error code Description Rating
0x01 Position code invalid.
This error can only occur
when starting / restarting
due to an unlock.
Critical error.
Possible causes:
Coded band defective or dirty.
Slides worn.
Measuring system failed.
0x02 Coded band not tensioned
in the device
No coded band in place.
Put the coded band in place and unlock the
device.
0x03 - -
0x04 Clock track measurement im-
possible (small holes)
Critical error.
Possible causes:
Band defective or dirty.
Slides worn.
Measuring system failed.
0x05 Measures in the channel not
plausible
Critical error.
Possible causes:
Band defective or dirty.
Slides worn.
Measuring system failed.
0x06 Code track measurement im-
possible (large holes)
Critical error.
Possible causes:
Band defective or dirty.
Slides worn.
Measuring system failed.
0x07 The device is not vertical
(as an average value inclined
by more than 15 degrees)
Critical error.
Device is inclined.
Check device installation.
0x08 Difference between channels dur-
ing operation
Critical error.
Possible causes:
Band defective or dirty.
Slides worn.
Measuring system failed.
0x09 Channel failed Critical error.
Interferences on the bus line,
measuring system defective.
0x0A BUS communication error Non-critical error.
Possible causes:
other, unauthorized participants on the bus.
0x0B Unauthorized communication
on the bus.
Non-critical error.
Possible causes:
other, unauthorized participants on the bus.
0x0C CRC checksum error
via program code.
Critical error.
The device must be replaced.
0x0D Acceleration values
not plausible
Critical error.

5 Commissioning and Operation Kübler Group
16 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
Error code Description Rating
Possible causes:
Device got stuck.
Check the complete coded tape.
0x0E Not used -
0x0F Device is not upright.
This error can only occur
when starting / restarting
due to an unlock.
Critical error.
Check device installation.
0x10 Too fast device displacement de-
tected (system limits 12 m/s)
Critical error.
Check the speed of the elevator facility.
0x11 Partial voltage drop
in the device
Critical error.
Possible causes:
wrong coded band.
Slides worn.
Measuring system failed.
0x12 Not used. -
0x13 Not used. -
0x14 Logic failure. Critical error.
Replace the sensor if this error occurs re-
peatedly.
0x15 Logic failure. Critical error.
Replace the sensor if this error occurs re-
peatedly.
0x16 Free fall (1 g). Critical error. Check the acceleration values
of the elevator plant.

Kübler Group 6 Disposal
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 17
6 Disposal
6.1 Disposal
Always dispose of unusable or irreparable devices in an environmentally sound manner, ac-
cording to the country-specific provisions and in compliance with the waste disposal regulations
in force. We will be glad to help you dispose of the devices, see chapter Contacts [}20].
NOTICE Environmental damage in case of incorrect disposal
Electrical waste, electronic components, lubricants and other auxili-
ary materials are subject to hazardous waste treatment.
Problem substances and may only be disposed of by licensed spe-
cialist companies.
Dispose of disassembled device components as follows:
• Metal components in the scrap metal.
• Electronic components in the electrical waste.
• Plastic parts in a recycling center.
• Sort and dispose of the other components depending on the material type.

7 Annex Kübler Group
18 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
7 Annex
7.1 Decimal / Hexadecimal conversion table
Dec Hex Dec Hex Dec Hex Dec Hex Dec Hex
0051 33 102 66 153 99 204 CC
1152 34 103 67 154 9A 205 CD
2253 35 104 68 155 9B 206 CE
3354 36 105 69 156 9C 207 CF
4455 37 106 6A 157 9D 208 D0
5556 38 107 6B 158 9E 209 D1
6657 39 108 6C 159 9F 210 D2
7758 3A 109 6D 160 A0 211 D3
8859 3B 110 6E 161 A1 212 D4
9960 3C 111 6F 162 A2 213 D5
10 0A 61 3D 112 70 163 A3 214 D6
11 0B 62 3E 113 71 164 A4 215 D7
12 0C 63 3F 114 72 165 A5 216 D8
13 0D 64 40 115 73 166 A6 217 D9
14 0E 65 41 116 74 167 A7 218 DA
15 0F 66 42 117 75 168 A8 219 DB
16 10 67 43 118 76 169 A9 220 DC
17 11 68 44 119 77 170 AA 221 DD
18 12 69 45 120 78 171 AB 222 DE
19 13 70 46 121 79 172 AC 223 DF
20 14 71 47 122 7A 173 AD 224 E0
21 15 72 48 123 7B 174 AE 225 E1
22 16 73 49 124 7C 175 AF 226 E2
23 17 74 4A 125 7D 176 B0 227 E3
24 18 75 4B 126 7E 177 B1 228 E4
25 19 76 4C 127 7F 178 B2 229 E5
26 1A 77 4D 128 80 179 B3 230 E6
27 1B 78 4E 129 81 180 B4 231 E7
28 1C 79 4F 130 82 181 B5 232 E8
29 1D 80 50 131 83 182 B6 233 E9
30 1E 81 51 132 84 183 B7 234 EA

Kübler Group 7 Annex
Manual CAN - Ants LES02 - R67073.0002 - 01 EN - 19
Dec Hex Dec Hex Dec Hex Dec Hex Dec Hex
31 1F 82 52 133 85 184 B8 235 EB
32 20 83 53 134 86 185 B9 236 EC
33 21 84 54 135 87 186 BA 237 ED
34 22 85 55 136 88 187 BB 238 EE
35 23 86 56 137 89 188 BC 239 EF
36 24 87 57 138 8A 189 BD 240 F0
37 25 88 58 139 8B 190 BE 241 F1
38 26 89 59 140 8C 191 BF 242 F2
39 27 90 5A 141 8D 192 C0 243 F3
40 28 91 5B 142 8E 193 C1 244 F4
41 29 92 5C 143 8F 194 C2 245 F5
42 2A 93 5D 144 90 195 C3 246 F6
43 2B 94 5E 145 91 196 C4 247 F7
44 2C 95 5F 146 92 197 C5 248 F8
45 2D 96 60 147 93 198 C6 249 F9
46 2E 97 61 148 94 199 C7 250 FA
47 2F 98 62 149 95 200 C8 251 FB
48 30 99 63 150 96 201 C9 252 FC
49 31 100 64 151 97 202 CA 253 FD
50 32 101 65 152 98 203 CB 254 FE
255 FF

8 Contact Kübler Group
20 - EN Manual CAN - Ants LES02 - R67073.0002 - 01
8 Contact
You want to contact us:
Technical support
Kübler's worldwide applications team is available on site all over the world for technical advice,
analysis or installation support.
International support (English-speaking)
+4977203903952
[email protected]
Kübler Germany +4977203903849
Kübler France [phone]
Kübler Italy [phone]
Kübler Poland [phone]
Kübler Turkey [phone]
Kübler China [phone]
Kübler India [phone]
Kübler USA [phone]
Repair service / RMA form
In case of returns, please package the product sufficiently and attach the completed "Returns
form".
www.kuebler.com/rma
Please send your return to the address below.
Kübler Group
Fritz Kübler GmbH
Schubertstraße 47
D-78054 Villingen-Schwenningen
Germany
Phone [phone]
Fax +49772021564
[email protected]
www.kuebler.com