Linak DESKLINE DL21 User manual

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LINAK.COM/DESKLINE
DL21 with CBD6S
User manual

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Contents
Preface ........................................................................................................................................... 3
Valid for........................................................................................................................................... 4
Important information .................................................................................................................. 5
Safety instructions......................................................................................................................... 5
General ...................................................................................................................................... 5
Before installation, reinstallation or troubleshooting .................................................................... 6
Before start-up ........................................................................................................................... 6
During operation......................................................................................................................... 6
Misc. .......................................................................................................................................... 6
Only for EU markets....................................................................................................................... 7
Only for Non EU markets .............................................................................................................. 7
Misuse ........................................................................................................................................... 7
Repairs ........................................................................................................................................... 8
Declaration of incorporation of partly completed machinery ................................................. 8
Declaration of conformity............................................................................................................. 9
Misc. on the DESKLINE®DL21 system ....................................................................................... 10
Warranty................................................................................................................................... 10
Maintenance............................................................................................................................. 10
Service of double-insulated products ......................................................................................... 10
ETL-markering .............................................................................................................................. 11
Description of the DESKLINE® DL21 .......................................................................................... 12
Installation ................................................................................................................................ 13
Mounting the DL21 ................................................................................................................... 13
Mounting the feet .................................................................................................................... 14
Mounting of the tabletop........................................................................................................... 15
Placing the monitor.................................................................................................................... 15
Mounting guidelines CBD6S (SMPS).......................................................................................... 16
Bottom with cable grooves........................................................................................................ 16
Electric connection of the DL21 system.................................................................................... 17
Initialisation of the DESKLINE®DL21 parallel systems........................................................... 18
Anti-Collision ............................................................................................................................... 19
PIEZOTM description (optional) .................................................................................................. 20
Accessories .................................................................................................................................. 21
Disposal of LINAK product.......................................................................................................... 22
Labels ......................................................................................................................................... 23
Drawing appendix........................................................................................................................ 24
Addresses...................................................................................................................................... 29

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Preface
Dear User,
We are delighted that you have chosen a product from LINAK®.
LINAK systems are high-tech products based on many years of experience in the manufacture and development
of actuators, electric control boxes, controls and chargers.
This User Manual does not address the end-user. It is intended as a source of information for the manufacturer
of the equipment or system only, and it will tell you how to install, use and maintain your LINAK electronics.
It is the responsibility of the manufacturer of the end-user product to provide a User Manual where relevant
safety information from this manual is passed on to the end-user.
We are sure that your LINAK product/system will give you many years of problem-free operation.
Before our products leave the factory, they undergo full function and quality testing. Should you nevertheless
experience problems with your LINAK product/system, you are always welcome to contact your local contact.
LINAK subsidiaries and some distributors situated all over the world have authorised service centres, which are
always ready to help you.
LINAK provides a limited warranty on its products. This warranty is, however, subject to correct use in
accordance with the specifications, maintenance being done correctly, and any repairs being carried out at a
service centre, which is authorised to repair LINAK products. Changes in installation and use of LINAK products/
systems can affect their operation and durability. The products are not to be opened by unauthorised personnel.
You can review the full terms of the LINAK warranty on the LINAK website www.linak.com/warranty.
The User Manual has been written based on our present technical knowledge. We are constantly working on
updating the information and we therefore reserve the right to carry out technical modifications.
LINAK A/S

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Valid for:
This User Manual is valid for the following products:
(See the first 3 - 5 characters on the label)
Columns: 1 single DL21 or 2 in parallel
Control boxes: CBD6S 200 W, CBD6S 300 W
Controls: DPF1M/DPG1M/DPG1B (if memory function is required)
DP1CS/DPT/DPF1C/DPG1C (if memory function and display is required) or
DPA/DPB/DPH/DP1K/DPF1K/DPG1K (if only up/down is required) or DPF1D (if display is required).

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Safety instruction
General
Important information
Important information on LINAK®products can be found under the following
headings:
Warning!
Failure to comply with these instructions may result in accidents involving
serious personal injury.
Failing to follow these instructions can result in the product being damaged
or being destroyed.
Safe use of the system is possible only when the operating instructions are read
completely and the instructions contained are strictly observed.
Failure to comply with instructions marked with the ”NOTE” symbol may result in
serious damage to the system or one of its components.
It is important for everyone who is to connect, install, or use the systems to
have the necessary information and access to this User Manual. Follow the
instructions for mounting – there is a risk of injury if these instructions are not
followed.
The appliance is not intended for use by young children or infirm persons
without supervision.
If there is visible damage to the product, do not install it.
Please note that during construction of applications in which the actuator
is to be fitted, there must be no possibility of personal injury, for example
squeezing of fingers or arms.
Assure free space for movement of the application in both directions to avoid
blockades.

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Before installation, re-installation, or troubleshooting:
•Stop the DL
•Pull out the mains plug.
•Relieve the DL of any loads, which may be released during the work.
Before start-up:
•Make sure that the system has been installed as instructed in this User Manual.
•Make sure that the voltage of the control box is correct before connecting the
system to the mains.
•System connection.The individual parts must be connected before connecting the
control box to the mains. See the User Manual for LINAK actuators, if necessary.
During operation
•If the control box makes unusual noise or smells, switch off the mains voltage
immediately.
•Take care that the cables are not damaged.
•Unplug the mains cable on mobile equipment before moving it.
•The products must only be used in an environment, that corresponds to their IP
protection.
Misc.
The actuator system has a sound level below 55 dB (A) in typical applications.
Updated manuals and declarations can always be found here:
www.linak.com/deskline

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Only for EU markets
This appliance can be used by children aged from aged 8 years and above
and persons with reduced physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given supervision or instruction
concerning use of the appliance in a safe way and understand the hazards
involved.
Children shall not play with the appliance. Cleaning and user maintenance
shall not be made by children without supervision.
Only for Non EU markets
Persons who do not have the necessary experience or knowledge of the
product/products must not use the product/products. Besides, persons with
reduced physical, sensory or mental abilities must not use the product/
products, unless they are under surveillance or they have been thoroughly
instructed in the use of the apparatus by a person who is responsible for the
safety of these persons.
Moreover, children must be under surveillance to ensure that they do not play
with the product.
Misuse
Do not overload the actuators – this can cause danger of personal injury and
damage to the system.
Do not use the actuator system for lifting persons. Do not sit or stand on a
table while operating – risk of personal injury.
Do not use the system in environments other than the intended indoor use

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Repairs
In order to avoid the risk of malfunction, all DESKLINE®repairs must only be carried out by authorised LINAK service centres or
repairers, as special tools must be used and special gaskets must be fitted. Products under warranty must also be returned to
authorised LINAK service centres.
Further information on DESKLINE warranty can be found on the LINAK website www.linak.com/warranty.
Warning!
If any of the DESKLINE®products are opened, there will be a risk of subsequent malfunction.
Warning!
The DESKLINE®systems do not withstand cutting oil.

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The RoHS mark is only applicable for the end product. Therefore, it must be obtained by the manufacturer of the
end products. LINAK®can, however, supply the required material information on our products.
For more information, visit: https://www.linak.com/about-linak/csr/declarations/
or contact: [email protected]

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Misc. on the DESKLINE®DL21
This system is a DESKLINE system developed for desks applications ranging from industry to office desks and for indoor use. Do
not use it in industrial kitchens or in other enviroments that have to be cleaned with aggressive detergents.
Do not bolt the legs to the floor so that free movement is prevented. This could cause serious damage to the legs in fault
situations.
Warranty
This DESKLINE product is subject to warranty pursuant to the terms of LINAK DESKLINE Warranty Paper, available on the LINAK
website www.linak.com/warranty.
Maintenance
Clean dust and dirt on the outside of the system at appropriate intervals and inspect them for damage and breaks.
Inspect the connections, cables, and plugs and check for correct functioning as well as fixing points.
Service of double-insulated products:
Class II
A Class II or double insulated electrical appliance is one which has been designed in such a way that it does not require a
safety electric earth connection (US: ground).
The basic requirement is that no single failure can result in dangerous voltage becoming exposed so that it might cause an
electric shock and that this is achieved without relying on an earthed metal casing. This is usually achieved at least in part by
having two layers of insulating material surrounding live parts or by using reinforced insulation.
There is no earthing/grounding means provided on the product, and no earthing/grounding means is to be added to the
product.
In Europe, a double insulated appliance must be labelled “Class II”, “double insulated” or bear the double insulation symbol (a
square inside another square).
Servicing a double-insulated product requires extreme care and knowledge of the system, and is to be done only by qualified
service personnel. Replacement parts for a double-insulated product must be identical to the parts they replace.
Cleaners and disinfectants must not be highly alkaline or acidic (pH value 6-8).

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C/N 4008003
Conforms to UL962
Cert. to CSA Std. C22.2 No. 68-09
ETL Recognized Component mark for Canada and United States
C/N 4008004
Conforms to UL962
Cert. to CSA Std. C22.2 No. 68-09
ETL Recognized Component mark for Canada and United States
C/N 4008005
Conforms to UL962
Cert. to CSA Std. C22.2 No. 68-09
ETL Recognized Component mark for Canada and United States
C/N 4008671
Conforms to UL962
Cert. to CSA Std. C22.2 No. 68-09
ETL Recognized Component mark for Canada and United States
C/N 4009507
Conforms to UL962
Cert. to CSA Std. C22.2 No. 68-09
ETL Recognized Component mark for Canada and United States
ETL-marking
Due to space limitations, the complete ETL-marking demands are not represented on the marking plates.
The full ETL Recognized Component markings are shown here.
C/N 120690
Conforms to UL962
Cert. to CSA Std. C22.2 No. 68-09
ETL Recognized Component mark for Canada and United
States
C/N 9901916
Conforms to UL962
Cert. to CSA Std. C22.2 No. 68-09
ETL Recognized Component mark for Canada and United
States

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Description of the DESKLINE®DL21
Each DESKLINE®DL21 lifting unit is equipped with a motor, and parallel/memory drive is ensured by means of software in the
CBD6S (SMPS) that also takes account of oblique load on the desk. Soft start and stop are also part of this software, which
ensures a soft start and stop when adjusting the desk.
Application of the DESKLINE®DL21:
Irrespective of the load the duty cycle 10 % ≈ 2 minutes continuous use at full load, followed by 18 minutes
pause stated in the data sheets, must NOT be exceeded as this will result in a superheating of the motor, the brake and the
spindle nut. Exceeding the duty cycle will result in a dramatic reduction of the life of the system.
The DESKLINE®DL21 system range contains the following products:
• 1 control box CBD6S 200 W or CBD6S 300 W (SMPS - Switch Mode Power Supply)
• 1 single DL21 or 2 in parallel
• 1 exchangeable mains cable
• 1 or 2 motor cables
• DP1U/DPF1M/DPG1M/DPG1B (if memory function is required)
DP1C/DPT/DPF1C/DPG1C (if memory function and display is required) or
DPA/DPB/DPH/DP1K/DP1V/DPF1K/DPG1K (if only up/down is required) or DPF1D (if display is required).

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Installation
Mounting the DL21
Mounting the motor housing
The motor housing is supplied with six M6 threaded holes for mounting on the top frame.
1. Mount the motor housing on the top frame using six M6 screws with the following specifications:
Quality: Min. grade 8.8
Length: Max. 10 mm (plus top frame thickness). The screw must not go further than max. 10 mm into the motor housing
2. Fasten the screws thoroughly (torque: max. 7.5 Nm).
Always use six M6 screws for mounting the motor housing on the top frame
The mounting screws must not go further than max. 10 mm into the motor housing
Sufficient stability of the desk is only obtained if all six M6 screws are used for mounting the motor housing
on the top frame. Tests with fixing the motor housing using only four M6 screws have proved that the torsional
stability of the desk this is insufficient.
LINAK recommends using the DL21 DESKLINE®system in push applications with the motor housing mounted
upwards.

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Mounting the feet
The DL21 bottom plate is supplied with four M6 and two M8 threaded holes.
1. Mount the feet on the column bottom using four M6 or two M8 screws with the following specifications:
Quality: Min. grade 8.8
Length: Min. 10 mm (plus foot thickness);
Max. 16 mm (plus foot thickness) for M6
Max. 14 mm (plus foot thickness) for M8
2. Fasten the screws thoroughly (torque: max. 10 Nm).
The holes in the foot must be sufficiently larger than ø6/ø8 to ensure space for the screw heads to be screwed fully into the
foot.
Column bottom mounted on desk foot (left: M6; right: M8)
Drawing No.: SAMLET_SKRUE_BILLED
Drawing No.: SAMLET_SKRUE_BILLED
Min. 10 mm Max. 14 mm
Min. 10 mm Max. 16 mm
0.1
0.1 A
M8
M6
A
Drawing No.: SAMLET_SKRUE_BILLED
Drawing No.: SAMLET_SKRUE_BILLED
Min. 10 mm Max. 14 mm
Min. 10 mm Max. 16 mm
0.1
0.1 A
M8
M6
A
DL21 bottom plate

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The sound from the lifting column spreads as vibrations to the tabletop which amplifies the sound.
This can, however, be reduced.
1. Place vibration/shock-absorbing material between tabletop and top frame.
Mounting of the tabletop
Assembled desk
Placement of a monitor directly above the motor housing may cause malfunction of the monitor.
Magnets inside the motor may interrupt the picture on the monitor depending on distance and type of monitor. If this is the
case, the problem may be solved by placing an iron plate/tube or another magnetic material, somewhat larger than the motor
housing, between the motor and the tabletop.
Placing the monitor
Recommended placement of an iron plate/tube or another magnetic material

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CBD6S 200 W and CBD6S 300 W
Mounting guidelines CBD6S (SMPS)
The control box is to be fastened with 2 screws with a head diameter of 10 mm (8 to 10 mm can be used). With regard to the
tension ø 10 mm is preferable due to a lower surface tension. See drawing appendix for placing of mounting holes and the
space the CBD takes up.
• The mains plug must be accessible when the CBD is mounted so that the supply to the CBD can be disconnected if
replacement is required.
• The mounting screws on the control box must be fastened with a max. torque of 1 Nm.
• The mounting surface to which the control box is attached should have a surface evenness of better than ± 0.5 mm.
Bottom with cable grooves
The bottom of the CBD6S (SMPS) is equipped with two cable grooves improving the cable management when mounting. The
grooves can be used to bypass the CBD for both motor cables and the mains cable (EU version only) from one side to the
other, giving a cleaner design.
Remember to lead the cables through the grooves before mounting the control box.
For mounting and operation of the desk panel, please see the separate user manual for desk panels.
Do not pack the CBD6S in heat insulating material.
Place the CBD6S so it can emit heat through its surface to the surroundings.

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Figure 4
DL21
Electric connection of the DL21
The DESKLINE®DL21 is to be connected as shown on figure 5. Each DL21 is to be connected to the sockets on the control box
by means of the motor cables, which have a 6-pin plug in each end.
Please note that the control box must only be connected to the voltage stated on the label.
Finally, the mains cable is to be mounted and power switched on.
DP
DL5/DL6
Hook for cable relief
Mains cable
DL5/DL6
Figure 5
DL21
DL21

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Initialisation of the DESKLINE®DL21 parallel systems
The DESKLINE system is intialised by pressing the down button once or twice and holding it down until DL21 runs into end
stop, it will then automatically run approx. 3 mm out again and hereafter slowly run in again. Only release the down button
when the movement has stopped completely.
If the key is released before the sequence is completed then the initialisation is interupted and must be started again
from the beginning.
It is sometimes necessary to press the down button twice to start the initialisation. This is because the system can be in
different modes when the initialisation starts.
Approx. 3 mm

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Anti-Collision
The function (Anti-Collision) is an option for the standard CBD6S (SMPS) control box. A system with Anti-Collision can limit
material damages to a desk if a collision with a solid object should occur.
Enabling the anti-collision
To enable the Anti-Collision function a little plug called a dongle must be mounted in one of the 2 control ports. The function is
only active when the dongle is mounted. – If you remove the dongle again you disable the function.
Method of operation
When the DL/DBs are running, the CBD6S (SMPS) monitors the current consumption on each channel using a special
algorithm. If the current consumption on one channel is increased more than a predefined slope, a collision is assumed and all
channels are stopped immediately and all DL/DBs will start to run in the opposite direction (approx. 50 mm). This return drive is
done automatically and continues with or without any control key pressed (for max. 2.5 sec.).
The Anti-Collision sensitivity is different in upward and downward direction. Upwards the force is approx. 20 kg. Downwards
the load will be approx. 40 kg + the load on the DL/DB (the desk + what is on top of the desk). The 40 kg are needed to
activate the Anti-Collision function.
Situations where the Anti-Collision function does not work
The Anti-Collision function is not activated if the collision happens:
• during the initialisation procedure
• within the first second of desk panel activation (ramp-up time) or within one second after the desk panel has been released
(ramp-down time)
• in downward direction and the load on the desk + the weight of the legs is less than 40 kg
• over too long time, e.g. if the collision is with a soft object

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PIEZO™ description (optional)
For optimised safety against squeezing and blocking on a desk, LINAK has developed DL columns with an integrated sensor,
called PIEZO. The option minimises the risk of damage to a desk caused by squeezing or blocking of obstacles in up and down
direction. Examples could be driving down into an office chair or into a container or up into a windowsill. To a certain extent,
the system also increases the personal safety, but it does not comply with legislation describing personal safety.
PIEZO allows the DL columns to have the standard built-in dimension and the standard stroke length. There are no visible
changes to the column.
Examples where PIEZO avoids squeezing situations.
Do not use the DL with PIEZO in combination with a crossbar or a foot construction where you place the column in a
tube welded on the foot.