DEWERT OKIN DD11S Lifting Columns Instruction Manual

July 30, 2024
DEWERT OKIN

DEWERT OKIN DD11S Lifting Columns

Specifications

  • Product Name: DD11S and DD21S Lifting Columns
  • Model Numbers: DD11S, DD21S
  • Manufacturer: DewertOkin

Product Information

General Information

  • The terms lifting column and lifting columns in the following text refer to the lifting columns DD11S and DD21S, unless a reference is made to a specific configuration.
  • These installation instructions must be followed closely in order to install this drive successfully and safely in the end product. These instructions are not an operating manual for the end product. These instructions will help you to minimize danger. They will also help you to increase the reliability and lifespan of the device.
  • CAUTION: The notices in these instructions must be followed! Following the guidelines during installation and connection procedures will help to minimize the risk of accident, injury, and damage to the drive system or the end product.
  • These installation instructions have been written with due care and attention. However, we cannot guarantee that the data, images, and drawings are complete and correct nor do we accept any liability for the information contained therein, unless required by law.
  • Availability of this document: As a manufacturer of the end product, you are obligated to comply with Machinery Directive 2006/42/EC. This directive stipulates that the installation instructions must be kept on file for governmental inspection purposes.

Safety Notices

Safety notices within the installation instruction and the operating instructions for the entire machine:
The manufacturer of the complete machine (the end product) is only permitted to operate the lifting column (by itself an incomplete machine) when the end product (for which the lifting column is intended) is in compliance with all protection requirements.

Product Usage Instructions

Installation

Installation:

  1. Safety notices to observe during installation:
    Follow all safety notices provided during the installation process to ensure safe and proper installation of the lifting columns.

  2. Installation procedure:
    Refer to the installation instructions provided in this manual for step-by- step guidance on installing the DD11S and DD21S lifting columns in your end product.

Operation

Notes for operation:
Once installed, follow the operation guidelines specified in this manual to ensure smooth functioning of the lifting columns.

Maintenance and Cleaning

Maintenance and cleaning:

  1. Maintenance:
    Regular maintenance is essential to keep the lifting columns in optimal condition. Follow the maintenance instructions provided to ensure longevity and performance.

  2. Cleaning:
    Proper cleaning of the lifting columns is necessary to prevent dust accumulatio0n or debris that may affect their operation. Follow the cleaning guidelines outlined in this manual.

FAQ

  • Q: What should I do if I encounter difficulties during installation?
    A: If you face challenges during installation, refer to the troubleshooting section of this manual or contact DewertOkin customer support for assistance.

DD11S and DD21S lifting columns
Installation Instructions (Translation of the original installation instructions)

Foreword

Disclaimer and exclusion of liability

DewertOkin is not responsible for damage resulting from:

  • failure to observe these instructions,
  • changes made to this product which have not been approved by DewertOkin, or
  • the use of replacement parts which have not been approved or manufactured by DewertOkin.
  • We reserve the right to make unannounced technical changes in the course of our continual product improvement process!

Creation of a complete operating instruction manual for the entire end product

  • These instructions are only intended to be used by the end-product manufacturer. They should not be given to the operator of the end product. The factual information contained within may be used as a basis when creating the end-product manual.
  • The warning and danger notices are best suited for use in the end product’s manual. However it is not sufficient to simply follow these notices. You should also carry out an internal risk assessment for your end product. This can then be used as the basis for the safety notices in your manual.
  • These installation instructions do not contain all information required to safely operate the end product. They only describe the installation and operation of the drive as partially completed machinery.
  • The instructions are intended for the technicians responsible for manufacturing an end product and not for the operators of the end product.

General Information

  • The terms “lifting column” and “lifting columns” in the following text refer to the lifting columns DD11S and DD21S, unless a reference is made to a specific configuration.

  • These installation instructions must be followed closely in order to install this drive successfully and safely in the end product. These instructions are not an operating manual for the end product.
    These instructions will help you to minimize danger. They will also help you to increase the reliability and lifespan of the device.

  • CAUTION

  • The notices in these instructions must be followed! Following the guidelines during installation and connection procedures will help to minimize:

  • the risk of accident and injury, and
    damage to the drive system or the end product.

  • These installation instructions have been written with due care and attention. However, we cannot guarantee that the data, images and drawings are complete and correct nor don we accept any liability for the information contained therein, unless required by law.

  • Availability of this document

  • As manufacturer of the end product, you are obligated to comply with Machinery Directive
    2006/42/EC. This directive stipulates that the installation instructions must be kept on file for governmental inspection purposes.

  • Safety notices within the installation instruction and the operating instructions for the entire machine

  • The manufacturer of the complete machine (the end product) is only permitted to operate the lifting column (by itself an incomplete machine)

  • when the end product (for which the lifting column is intended) is in compliance with all protective measures specified in the Machinery Directive 2006/42/EC, and

  • when the manufacturer expressly declares the compliance of the end product.

  • The manufacturer of the end product must create a manual for the users of that product. The safety notices in the end-product manual must be written based on the end product’s risk assessment.

  • Conventions used

  • Notices which do not relate to safety are indicated in these instructions with a triangle:

  • Triangular notice symbol

Safety notice explanations

  • CAUTION
    CAUTION indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.

  • NOTICE
    NOTICE is used to address practices which are not related to personal injury but may result in damage to the product or surroundings.

 Safety notices

  1. Proper and intended usage
    The lifting column is intended to be installed in height-adjustable desks and office tables.

    • It provides motor adjustment capabilities for movable tables. It should be used in conjunction with suitable mechanics,
    • It should be used below the following load limits:
    • Bending torque, dynamic < 150 Nm
    • Torsional moment, static twisting torque < 200 Nm
    • Self-locking: 700 N.
    • CAUTION
    • Risk of accident
    • This drive should only be used for the applications described above. Any other use is forbidden. Improper usage can lead to accidents or destruction of the unit. Such non-approved applications will lead immediately to the expiration of all guarantee and warranty claims on the part of the end-product manufacturer against the manufacturer.
    • Improper usage
    • Be sure to follow the notices below concerning improper usage. You should include them in your product manual in order to inform the users of your end product.
    • The lifting column must not be used: in any environment where combustible or explosive gases or vapours (e.g., anesthesiology) may be present, in a moist environment, outdoors.
    • NOTICE
    • When installing and operating the lifting column, please note the following:
    • Handle the lifting column with care!
    • Do not drop the lifting column vertically to the ground.
    • Do not tilt the lifting column sideways and let it fall to the ground.
    • Do not subject the lifting column to lateral shock loads during the installation.
    • The lifting column can be used by children of 8 years and older, persons with reduced physical, sensory or mental capabilities, or persons with lack of experience or knowledge when they are supervised or instructed concerning the safe use of the device and when they understand the resulting risks. Do not allow children to play with this device. The cleaning and user maintenance must not be carried out by children without supervision.
    • You should only use spare parts which have been manufactured or approved by DewertOkin. Only these parts will guarantee a sufficient level of safety.
  2. Selection and qualification of personnel

    • This drive should only be installed into the end product by someone who has completed training in electronic motor assembly or has equivalent qualifications.
    • You should only install this drive when you are qualified to do so. Otherwise, a properly qualified person should be found for this task.
  3. Ratings plate
    The ratings plate shown is an example; the specifications for your lifting column may differ from this illustration.

Figure 2 Rating plates (examples)

DD11S DD21S Model name
xxxxx Article number
24 – 29V Input voltage
Max. 5.50A Current consumption
Duty cycle: 2 min ON / 18 min OFF Intermittent duty / power-on time
max. Push Force Push force
Prod.date Calendar week / year
Serial No. Serial number for your drive
IP20 Protection degree

      Use in dry rooms only!
  Protection class: III
Follow all special disposal instructions!
Conformity mark

Description

The lifting column is an electrically driven motor that is responsible for moving the end product in a linear direction. The lifting column is operated with a control unit and keypad.
The different drive models vary according to their:

  • DD11S lifting column: single telescopic
  • D21S lifting column: double telescopic
  • output performance, or
  • number of lifting columns in the end product.

Components

  1. DD11S lifting column (single telescopic)
    Figure 3 Major components of the DD11S lifting column

    • A Connection cable
    • B Head of the lifting column
    • C Outer column with one internal telescopic column
    •  D Foot of the lifting column
  2. DD21S lifting column (double telescopic)
    Figure 4 Major components of the DD21S lifting column

    • A Connection cable
    • B Head of the lifting column
    • C Outer column with two internal telescopic columns
    • D Foot of the lifting column

 Technical specifications

DD11S DD21S

Input voltage 24 V DC – 29 V DC
Current consumption at rated load                                       Max. 5.50 A DC
Permitted push force Max. 700 N
Bending torque, dynamic| < 150 Nm (in the y direc- tion, see Figure 7)
Torsional moment (static twisting torque)| < 200 Nm
Self-locking 700 N
Mode of operation1 under max. rated load                  Intermittent duty 2 min./18 min.
Protection class III
Noise level ≤ 55 dB(A)
Drive type lifting column
Protection degree IP20
Standard colours                                                    RAL 9005, RAL 9006, RAL 9016
Stroke                                                               500 mm| 650 mm
Length2 x width x height (in mm)                   645 x 108.6 x 155| 565 x 108.6 x 155
Length3 x width x height (in mm)                  1145 x 108.6 x 155| 1215 x 108.6 x 155

  • Column dimensions
  • Exterior: (in mm)
  • Middle:
  • Interior:

| 80 x 62| 80 x 62
–| 73 x 55
73 x 55| 66 x 48
Weight                                                          Approx. 7.9 kg| Approx. 9.1 kg
Cable length 1200 mm ± 10 mm
Ambient conditions for operation, storage and transport

  • Transport / storage temperature
  • From -20 °C to +50 °C
  • From -4 °F to +122 °F

Operating temperature                          From +10 °C to +40 °C From +50 °F to +104 °F
Relative humidity                                  From 30% to 75%
Air pressure                                         From 800 hPa to 1060 hPa
Height                                                  < 2000 m

  1. Mode of operation: intermittent duty 2 min./18 min. This means that after the unit is operated with its rated load for up to 2 minutes it must then be paused for 18 minutes. The system can malfunction if this pause is not observed!
  2. Length when retracted.
  3. Length when fully extended.

DD11S Dimensions

DD21S Dimensions

 Installation

Safety notices to observe during installation

  • Basic safety rules must be followed in order to ensure that the end product can be continually op-erated in a safe manner. These rules must be observed while using the end product and while in-stalling the lifting columns.
  • Avoiding electrical faults
  • Be sure to consider the length of the power cord when designing the dimensions for your end product in order to minimize the associated risks.
  • Electrical connection

CAUTION

  • Danger of pinching/crushing injuries!

  • The electrical components may be connected or disconnected only when the mains power and the battery plug (when present) are disconnected. This ensures that uncontrolled movements cannot be triggered.

  • Routing the electrical cables When routing the cables, be sure that:  the cables cannot get jammed, no mechanical load (such as pulling, pushing or bending) will be put on the cables, and the cables cannot be damaged in any way.

  • Fasten all cables using sufficient strain relief and kink prevention methods.

  • Avoiding fatigue fractures

  • Install the lifting column in the end product so that it is properly aligned. This will help prevent shear stress.

  • Do not position the lifting column at a slanted angle when installing it in the end product. A slanted angle between the intended direction of movement of the end product and the lifting column’s direction will create shear stress and could lead to a fatigue fracture.

  • Avoiding a pinching hazard

  • When designing your product, you should take the lifting column’s adjustment movement into ac-count with passive safety mechanisms and with the appropriate safety notices in your operating instructions.

  • Installation methods for ensuring passive safety: Install the lifting column so that none of the positions where shear and pinch hazards exist are accessible externally.

  • Make sure that your operating instructions inform the user of these safety points.

  • Installation procedure
    Before installing the lifting column, make sure that you are observing all of the safety notices found in the “Safety notices to observe during installation” section.

  • Mounting the table base (version A)

  • Use M6 cylinder head screws (with strength grade 8.8), as shown in Figure 8. The tightening torque must not exceed 10 Nm.

  • A Base plate

  • B M6 cylinder head screw (8.8)

  • C Foot of the lifting column

DD11 S and DD21S lifting columns

Figure 9 Example: Mounting the table base (version A)

  • A Base plate
  • B M6 cylinder head screw (8.8)
  • C Foot of the lifting column
    1. Use four screws to attach the table base to the foot end of the lifting column, as shown in Figure 9 (the maximum tightening torque is 10 Nm). The mounting dimensions are shown in Figure 8.
    2. Repeat step 1 with all other lifting columns.

Mounting the table base (version B)

  • Use M6 cylinder head screws (with strength grade 8.8), as shown in Figure 10. The tightening torque must not exceed 10 Nm.

  • Figure 10 Mounting the table base (version B) (in mm)

    • A Base plate
    • B M6 cylinder head screw (8.8)
    • C Foot of the lifting column

DD11 S and DD21S lifting columns Figure 11 Example: Mounting the table base (version B)

  • A Base plate

  • B M6 cylinder head screw (8.8)

  • C Foot of the lifting column

    1. Use four screws to attach the table base to the foot end of the DD11S/DD21S lifting columns, as shown in Figure 11 (maximum tightening torque is 10 Nm). The mounting dimensions are shown in Figure 10.
    2. Repeat step 1 with all other lifting columns.
  • Mounting the table base (version D)
    Use M6 countersunk screws (with strength grade 8.8), as shown in Figure 12. The tightening torque must not exceed 10 Nm.

  • A Base plate

  • B M6 countersunk screws (8.8)

  • C Foot of the lifting column

DD11 S and DD21S lifting columns

  • Base plate

  • B M6 countersunk screws (8.8)

  • C Foot of the lifting column

    1. Use four screws to attach the table base to the foot end of the lifting column, as shown in Figure 13 (the maximum tightening torque is 10 Nm). The mounting dimensions are shown in Figure 12.
    2. Repeat step 1 with all other lifting columns.
  • Mounting the table frame
    Use M8 bolts (with strength grade 8.8), as shown in Figure 14. The tightening torque must not exceed 20 Nm.

  • A Table frame

  • B1 M6 countersunk screws (8.8)

  • B2 M6 countersunk screws (8.8

  • C Head of the lifting column

DD11 S and DD21S lifting columns

  • A End product (e.g. a table frame)
  • B1 M6 countersunk screws (8.8)
  • B2 M6 countersunk screws (8.8)
  • C Head of the lifting column
    1. 1 Set the table frame so that the holes are over the lifting column. Use four screws to attach the table frame to the motor housing of the lifting column, as shown in Figure 15 (maximum tightening torque is 20 Nm). The mounting dimensions are shown in Figure 14.
    2. Screw the other lifting columns to the table frame similarly.

Dismantling

CAUTION
Work on electrical components should be conducted only when the mains power connection for the control unit is unplugged.

  1. Move the table to the starting position, so that the lifting columns are fully retracted.
  2. Pull out the control unit’s mains power plug!
  3. Remove all of the lifting columns’ cables from the sockets of the control unit.
  4. Remove all lifting columns from the table frame.

Notes for operation

These installation instructions do not contain all information required for the safe operation of the end product. They only describe the installation and operation of the drive as components (as de-fined in the Machinery Directive as a “partially assembled piece of machinery”).

  • Use only the Smart or Concept control unit to control the lifting column. Only this equipment has been verified to work together properly.

  • Load limits
    During operation, the load on the lifting column must remain below the following load limits:

    • Bending torque, dynamic < 150 Nm
    • Torsional moment, static twisting torque < 200 Nm
    • Self-locking 700 N.
  • Be sure that your operating instructions inform the user about the risks from putting the lifting col-umns under excessive load.

Avoiding electrical risks

CAUTION
Make sure that all live (current-carrying) parts of the drive system and power supply cannot be touched. In particular, be sure that unused power and control unit connections are covered adequately.

Power-on time / intermittent operations

NOTICE

  • The lifting column has been designed for intermittent operations. Intermittent operation is an operational mode where the drive must pause after a specified maximum period of operation (power-on time). The drive can overheat when these pauses are not maintained.

  • The lifting column must operate with an intermittent duty of 2 min./18 min. This means that after the unit is operated with its rated load for up to two minutes it must then be paused for 18 minutes.

  • Switching off the lifting column
    Pull the power plug of the controller in order to shut down the lifting column! The power plug must always be accessible during operations so it is possible to shut off the lifting columns.

  • Avoiding cable damage
    Be sure that your operating instructions inform the user about the possible cable risks.

NOTICE
The cables (in particular the electrical connection for the drive and the power supply cable for the drive system) must not be squashed or crushed. In order to prevent damage to the drive, no mechanical strain should be placed on the cables.

 Maintenance and cleaning

  1. Maintenance
    The lifting column requires no maintenance.

  2. Cleaning
    Clean the lifting column as needed using a dry anti-static cloth.

NOTICE

  • Be sure to unplug the power cord on the control unit or the cable connecting the lifting column before you begin cleaning!
  • Clean the lifting columns using a dry antistatic cloth.
  • Be sure that you do not damage the lifting column’s connecting cables.

Disposal

  1. Packaging material
    The packaging material should be sorted into recyclable components and then disposed of in accordance with the appropriate national environmental regulations (in Germany according to the re-cycling law KrWG from 01.06.2012; internationally according to the EU Directive 2008/98/EC (Waste Framework Directive WFD as of 12.12.2008)).

  2. Drive components

    • The lifting column consists of electronic components, cables and metal and plastic parts. You should observe all corresponding national and regional environmental regulations when disposing of the lifting column.
    • The disposal of the end product is regulated in Germany by Elektro-G, internationally by the
    • EU Directive 2012/19/EC (WEEE), or by any applicable national laws and regulations.
    • The lifting column should not be disposed of with normal household waste!

Declaration of Incorporation

  • According to Appendix II of the EU Machinery Directive 2006/42/EC

  • The manufacturer:

  • DewertOkin GmbH Weststraße 1 32278 Kirchlengern Deutschland – Germany  declares that the incomplete machines described below complies with the following basic requirements of the Machinery Directive (2006/42/EC):
    Sections:

  • 1.5.5; 1.5.6; 1.5.7; 1.5.8; 1.5.9; 1.5.10; 1.5.13

  • According to

  • DIN EN 527-1:2011

  • DIN EN 527-2:2017

  • You may only operate this incomplete machine after you have confirmed that the end product (into which this machine will be installed) complies with the Machinery Directive 2006/42/EC.

  • On reasonable request, the manufacturer is obliged to send the special documentation accompanying the partially completed machinery in electronic form to the appropriate national institution. The special technical documents corresponding to the machine have been created according to Appendix VII, part B.

  • For preparation of the technical documentation is authorized:

  • DewertOkin GmbH Weststraße 1

  • 32278 Kirchlengern Tel.: 05223 979-0 Deutschland – Germany

Dr.-Ing. Josef G. Groß Geschäftsführer / Managing Director

EU Declaration of Conformity

  • In compliance with Appendix IV of the EMC-Directive 2014/30/EU
  • In compliance with Appendix IV of the LVD-Directive 2014/35/EU
  • In compliance with Appendix VI of the EU RoHS Directive 2011/65/EU  (incl. Commission delegated Directive (EU) 2015/863)
  • The manufacturer DewertOkin GmbH Weststraße 1 32278 Kirchlengern Deutschland – Germany  declares that the following product
  • DD11S with OKIN-Drive System DD21S with OKIN-Drive System
  • meets the requirements of the following EU directives:
  • Electromagnetic Compatibility Directive 2014/30/EU
  • Low Voltage Directive 2014/35/EU
  • COMMISSION DELEGATED DIRECTIVE (EU) 2015/863 of 31 March 2015 am ending Annex II to Directive 2011/65/EU of the European Parliament and of the Council as regards the list of restricted substances.
  • Applied standards:
  • EN 60335-1:2012/A11:2014
  • EN 55014-1:2006/A1:2009/A2:2011
  • EN 55014-2:1997/A1:2001/A2:2008
  • EN 61000-3-2:2014
  • EN 61000-3-3:2013
  • EN 62233:2008
  • This declaration of conformity is no longer valid if constructional changes are made which significantly change the drive system (i.e., which influence the technical specifications found in the instructions or the intended use)!
  • Dr.-Ing. Josef G. Groß Geschäftsführer / Managing Director
  • DewertOkin GmbH Weststrasse 1
  • Kirchlengern 32278, Germany Tel: +49 (0)5223/979-0
  • Fax.: +49 (0)5223/75182
  • http://www.dewertokin.de
  • Info@dewertokin.de

References

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