BENE lift desk pure Maintenance and service guide

https://bene.com/de/produkte-raumkonzepte/bueromoebel/lift-desk-pure/
LIFT DESK PURE
EN SAFETY AND OPERATING INSTRUCTIONS
NOTE
Please read all instructions carefully before operating the system. Keep instruction manualfor
further reference. This document is alternative available on the official Bene - homepage.
(www.bene.com)

22
CONTENTS
EN
Product overview ...............................................................3
Safety instructions .............................................................4
Sitting correctly .................................................................8
FIRST START-UP
Levelling ...........................................................................9
Manual control general .....................................................10
Manual reset ...................................................................12
FEATURES
Storing a position (Manual control ”Light“) ........................13
Storing a position (Manual control ”Pro“) ..........................14
Recalling a saved position ................................................15
Information regarding the push-push function ....................16
Enable and disable keylock ..............................................17
SOLUTION
Click codes .....................................................................18
Possible problems ...........................................................19
Error messages on the display
(only at Manual control switch ”Pro“) ................................20
Technical data .................................................................22
CE Certificate of Comformance .........................................23
Cleaning instructions. Certificates .....................................24
Notes .............................................................................25

3
PRODUCT OVERVIEW
Lift Desk Pure with cable tray
Lift Desk Pure with cable duct Lift Desk Pure with third working level 3L / 3T
Lift Desk Pure with CPU - holder

4
Please observe the safety instructions!
Improper operation of the system may
result in personal injury and cause
damage to objects!
1. Unplug the power cord in case of smoke,
smell or unusual noise.
2. Make sure no objects or parts of the body
get caught when operating the motor.
3. The piece of furniture must not be
adjusted in height if other people are
located directly in its vicinity.
4. Do not place any objects or parts of the
body between fixed or movable parts.
5. Height adjustment is only possible in jog
mode. If an obstacle is encountered or
if there is a functional fault, stop the
adjustment immediately.
6. Make sure adjacent objects are placed at
a minimum distance of 25 mm to prevent
them from being squeezed or sheared!
7. Ensure that the safety distances are
25 mm for movable parts (this also
applies for organisational elements which
are fitted above or underneath the
furniture, mounted to adjoining walls or
building parts such as open windows).
8. The protection against uncontrolled move
ment does not prevent objects being
trapped! For physical reasons, „soft“
obstacles are not easily recognised and
evaluated, if at all!
9. In case of hitting an obstacle, slight
damage (scratching, pressure marks, etc.)
to such obstacles may result
(table is lifted at nominal speed)!
SAFETY INSTRUCTIONS

5
SAFETY INSTRUCTIONS
10. Do not change or modify the control
mechanism or the operating device.
11. Never open the enclosure of the control
unit or power supply. Unauthorised
opening of the enclosure or improper
repairs may endanger the user and voids
all warranty claims.
12. Only professionals authorised by the
manufacturer may do maintenance
or repair.
13. Do not operate devices in explosive
environments.
14. This furniture is admitted only for the
commercial office area and management
in interiors.
15. This appliance must not be used by any
person (including children) with limited
physical, sensorial or mental abilities or
failing experience and/or knowledge unless
they are supervised by a person
responsible for their safety or received
instructions about how to use the appli-
ance. Children should be supervised in
order to make sure that they do not play
with the appliance.
16. The manufacturer assumes no liability for
damage resulting from improper use.
17. Connection plug boards must be fixed
properly for easy plugging and unplugging.
Plugs and connection plug boards must be
located in such a way that no fluids come
into contact with electrical equipment
when the office furniture is used properly.
18. The power cable must be secured in the
strain relief. Interconnecting cables may
be run loosely. All lines and cables must
be run in such a manner as to avoid
mechanical damage
(i.e., shearing, abrasion...).

6
SAFETY INSTRUCTIONS
19. Furniture with flexible or height-adjustable
components require special care. Cables
must be sufficiently long to allow height
adjustments without damaging the cables
and wiring (i.e., stretching, crushing, ...).
20. If the power cord of this equipment
is damaged, it must be replaced by the
manufacturer, their customer service, or a
similarly qualified person so as to avoid
any risk.
21. Do not spill liquids into the control unit or
power supply unit, as this could cause
electrical shock or short circuits.
22. The operation of the control mechanism
and the power supply unit requires a
minimum of 5°C and a maximum
temperature of 40°C.
23. For the above reasons do not install the
control unit:
- above or in front of heat sources
(e.g. radiators),
- at places exposed to direct sunlight,
- in small, unventilated or humid rooms,
- near easily flammable materials, or
- near high-frequency devices
(e.g. transmitters, radiation equipment,
or similar devices)

7
Warning: In the event of a fault it is
possible that the table top moves a bit
during every attempt whilst operating
before the safety switch off kicks in.
Please take care to avoid the possible
danger of crushing.
Warning: During all reset procedures
the collision protection is not active.
Please take care to avoid possible
danger of crushing.
Please note: If the product is visibly
damaged it must not be installed or
used further!
24. After 2 minutes of continuous operation
the system automatically shuts itself off
and cannot be used for an additional
18 minutes. This keeps the motor
from overheating.
25. Do not exceed maximum load of 75 kg.
SAFETY INSTRUCTIONS

8
SITTING CORRECTLY
100%
200%
140%
Occupational health experts have issued standards and recommendations for preventing
harmful habits and their negative health impact at the office workplace. These standards
and recommendations are based on findings relating to an incorrect and tense sitting
posture which limits performance and produces long-term physical damage over time.
Sitting with a hunched back
doubles the burden (200%) on
the vertebral disks compared
to standing up (100%).
Source: Wilkhahn
20°
> 600 mm
90-100°
90-100°
650-1250mm
> 100 mm

9
LEVELLING
The desk must be reset after levelling!
Please note: The protection against uncontrolled
movement is deactivated during resetting. Make sure
there are no objects or impediments under the table!
(specifically in the area of the column)

10
MANUAL CONTROL GENERAL
”Light” Manual control
Lower table topRaise table top
”Pro” Manual control
Lower table top
Raise table top
Display
Memory position button 2
Memory position button 1
Memory position button 3
Memory position button 4
Memory button

11
MANUAL CONTROL GENERAL
Function Description Note
Desk upwards For an upward adjustment of the desk push this button.
Push this button until the desired height of the desk has been
reached.
The desk will continue driving
upwards until you release the
button, or the maximum height is
reached.
Desk downwards For a downward adjustment of the desk push this button.
Push this button until the desired height of the desk has been
reached.
The desk will continue driving
downwards until you release the
button, or the minimum height is
reached.

12
MANUAL RESET
When the actual desktop position no longer corresponds to the height displayed or you wish to use a configured control unit on
another identical electric height-adjustable desk, you have to reset the lowest desktop position to the minimum height.
1. Press the desktop down key.
Keep pressing it until the desktop has reached the lowest position
(programmed desktop position).
2. Press the desktop down key again and keep pressing it.
After about 5 seconds, the desktop will slowly move further down
until it reaches the absolutely lowest desktop position possible.
3. Release the desktop down key. The electric height-adjustable
desk can now be used again normally.
Danger: Intelligent system protection (ISP) is not enabled during all resets and limit position calibration.
Please note that there is a potential risk of pinching in this case.
When the desk is used for the first time a reset must be done before you can operate the product. The reset causes all of the
columns to be brought to the same level. This ensures that the table top is positioned parallel with the ground. The controller
also saves the connected components in the standard configuration, such as columns or a sensor, if there is one attached. After
the reset, changes to the configuration are detected and considered to be errors. The system will not operate until the configura-
tion stored in its memory has been re-established.

13
STORING A POSITION (MANUAL CONTROL ”LIGHT“)
These 2 features can be used to limit the movement area of the desktop (e.g. if a container is placed underneath the desktop).
A container stop position can be defined in the lower half of the movement area, a shelf stop position in the upper half. If a
container stop position is set, this position will be the lower limit position. If a shelf stop position is set, this position will be the
new upper limit position. To store a container stop / shelf stop position, go on as shown below:
or
or
Move the desktop to the position where the container stop/ shelf stop position shall be stored. Do
so by pressing the desktop down or desktop up key until you reach the desired position.
Move the desktop to any position in the lower half to deactivate the container stop. / Move the
desktop to any position in the upper half to deactivate the shelf stop.
Do so by pressing the desktop down or desktop up key until you reach the desired position.
Note: A container stop position can only be stored in the lower half of the movement area and a
shelf stop in the upper half. Press for 10 seconds. The SMART will click twice when the
container stop position is stored.
Press for 10 seconds.
The SMART will click once when the container stop position is deactivated.
Note: These steps have to be done for a container stop and a shelf stop position separately!
To deactivate the container stop/ shelf stop position go on as shown below:
Note: These steps have to be done for a container stop and a shelf stop position separately!
1.
1.
2.
2.

14
STORING A POSITION (MANUAL CONTROL ”PRO“)
You can use this function to adjust the desktop to a saved height. To change to a saved position, proceed as follows:
Note: If you are switching on the control unit for the first time, all the saved positions are set to the lowest desktop height
(minimum desktop position).
1. Adjust the desktop to the position you want to save.
The display will show the desktop height (e.g. 74).
2. Press the memory key.
The display will read S –.
3. Press the required memory position key (e.g. 2).
The display will read S 2.
4. The set desktop position will now be saved tot he selected memory position key.
You will hear an audible double click and after about 2 seconds the saved desktop
position will be displayed.

15
RECALLING A SAVED POSITION
You can use this function to adjust the desktop to a saved height. To change to a saved position, proceed as follows:
1.
Press the required memory position key (e.g. 2) and hold it down.
The desktop will move until it reaches the saved position. If you release the key before the saved
position is reached, the desktop will stop and the saved desktop position will not be reached.
2. The desktop has reached the saved position. Now release the memory position key.
The display will read the current (saved) desktop position.

16
INFORMATION REGARDING THE PUSH-PUSH FUNCTION
The ”Pro“ manual control is equipped with a push-push function which is used to move out the user interface panel automatically.
Note: To extend the control panel you have to press it while it is retracted. Afterwards you have to release it. The control panel will
extend automatically (push-push function). Do not pull while the control panel is retracted. The control panel can get damaged.
Figure 1: left: Press the user interface panel so that it extends automatically; right: lift the user interface panel to a horizontal-
position and push it into the holder to retract the user interface panel
Note: The connection cable has to form a loop of at least 10 cm to ensure that the push-push function works properly.
Figure 2: The cable loop (highlighted white) shall be at least 10 cm long to ensure that the push-push function works properly.
Note: Depending on the ambient temperature the user interface panel may take varying time to move out
(it may take longer if it is cooler).

17
ENABLE AND DISABLE KEYLOCK
The keylock can be enabled and disabled by swiping the screen. After enabling the keylock a key will be shown on the display.
Figure 3: The key indicates that the
keylock is enabled
Figure 4: Activating and deactivating the keylock can be done by
swiping left or right underneath the display
Note: The direction of movement is not relevant (see Figure 4)
Note: You have to swipe the screen gently without pressing a button while swiping.
Note: The display must be active during activation or deactivation of the keylock (e.g. showing the current height).
To activate the display, press one key shortly (e.g. desktop up button).
Menu function
By pressing the memory position key 1 and 2 and the desk upwards key at the same time for more approx. 5 seconds you will
enter the menu. After you release the keys, the display will show S and a number, e.g. S 5. To select a menu option you have to
press the Memory key.
Note: The available menu options depend on the parameters of the control unit. For more information about menus please
read the user manual of the control unit.

18
CLICK CODES
When the control unit is switched on the SMART uses its relays to inform the user acoustically about the system state and
the reason why the control unit was switched off before. The table below shows which number of clicks corresponds to certain
information.
NUMBER OF CLICKS STATE INFORMATION
2x Normal operation:
No problems detected.
1x
Emergency operation:
The system is in Safe-State, movement is not possible. Check LED indication
and/or error codes on the display of the handswitch.
3x - 6x Last shutdown incomplete / forced reset:
Check LED indication and/or error codes on the display of the handswitch.

19
POSSIBLE PROBLEMS
Display does not work (buttons work)
Possible cause Remedy
Cable is defective Replace the handswitch.
Display is defective Replace the handswitch.
Microcontroller is defective Replace the handswitch.
Handswitch is defective Replace the handswitch.
Buttons do not work (display works)
Possible cause Remedy
Cable is defective Replace the handswitch.
Handswitch is defective Replace the handswitch.
Buttons are pressed during installation Disconnect and re-connect the handswitch to the control unit
without touching the user interface.
Handswitch does not work (neither display nor buttons)
Possible cause Remedy
Cable is not plugged in Plug the plug in the intended jack marked with HS.
Cable is not plugged in as intended
Bad pin contact Plug off the handswitch an plug it in as intended.
Cable is defective Replace the handswitch.

20
ERROR MESSAGES ON THE DISPLAY (ONLY AT MANUAL CONTROL SWITCH ”PRO“)
Display DESCRIPTION SOLUTION
Motor controller overheated
• Wait until the motor controller has cooled off and the “hot” message on the
display has disappeared. This can take up to 18 minutes (on-time monito-
ring: 2 min. continuous operation, 18 min. pause). The controller is ready
for use again after this.
Internal error channel 1 • Turn off the motor control.
• Contact customer service.
Internal error channel 2
Defect Channel 1 • Unplug the control unit.
• Fix the external short circuit or plug in the correct motor to the motor
socket that shows the error.
• Start the control unit again.
Defekt Kanal 2
Overcurrent Motor M1
• Remove jammed objects from the driving area.
• Desk might be overloaded  Remove load from desk.
• Contact customer service.
Overcurrent Motor M2
Overcurrent Motor Group 1
Collision protection
Overcurrent Control Unit
Plug detection in Motor socket M1
• Plug in the correct motor to the motor socket that shows the error.
• Reset all motors.
Plug detection in Motor socket M2
Actuator changed