OMT STAND.GUARD G1 User manual

STAND.GUARD
G1
Collision sensor for STAND.CONTROL C1

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Contents
Contents ........................................................................................................................................... 2
1Preface .....................................................................................................................................4
2Explanation of terms and index of abbreviations...................................................................... 5
3Safety........................................................................................................................................ 6
3.1 Purpose-conformant use of the product ........................................................................... 6
3.2 Target Group ....................................................................................................................6
3.3 Symbols used in the instructions ...................................................................................... 6
3.4 Safety instructions ............................................................................................................ 7
3.4.1 General safety instructions ........................................................................................... 7
3.4.2 Safety instructions für resellers ....................................................................................8
3.5 Repairs ............................................................................................................................. 9
4Warranty .................................................................................................................................10
5Overview.................................................................................................................................11
6Scope of supply and necessary as well as optional accessories...........................................12
6.1 Delivery scope ................................................................................................................12
6.2 Necessary accessories................................................................................................... 12
6.3 Optional accessories ......................................................................................................12
7Installation...............................................................................................................................13
7.1 Unpacking.......................................................................................................................13
7.2 Installation.......................................................................................................................13
8Commissioning .......................................................................................................................15
8.1 Commissioning the controller, general ...........................................................................15
8.2 Commissioning the STAND.GUARD G1........................................................................15
9Operation ................................................................................................................................ 16
9.1 Normal operation ............................................................................................................16
9.2 Cascading controllers .....................................................................................................16
9.3 Notes regarding the functioning of the sensor................................................................16
10 Disassembly/Maintenance......................................................................................................18
10.1 Disassembly ................................................................................................................... 18
10.2 Maintenance ...................................................................................................................18
10.3 Cleaning and maintenance.............................................................................................18
11 Easy to rectify faults ...............................................................................................................19
12 Technical data ........................................................................................................................21
13 Tests and certificates..............................................................................................................23
14 Disposal ..................................................................................................................................24
15 Additional Information.............................................................................................................25

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15.1 Copyright ........................................................................................................................25
15.2 Licences..........................................................................................................................25
15.3 Trademarks.....................................................................................................................25
15.4 Address...........................................................................................................................25

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1 Preface
Dear Customer,
we are pleased that you have decided to purchase our product. These operating instructions explain
how to assemble, use and maintain this sensor. All the sensors are put through a function test and
quality inspection before they leave our factory. Should you nonetheless have problems with your
sensor, you can contact our service department at any time.
The sensor must be installed in accordance with these instructions. Any changes to the sensor or any
improper usage can have an effect on the safety, functionality and service life.
These operating instructions have been written for the STAND.GUARD G1 sensor.
Oelschläger Metalltechnik GmbH

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2 Explanation of terms and index of abbreviations
Abb./Term
Meaning
OMT
Oelschläger Metalltechnik GmbH
Controller
Table controller STAND.CONTROL C1
Reset position
Lowermost mechanical end position of the table
Minimal position
Lowermost software end position of the table
Sensor
Collision sensor STAND.GUARD G1

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3 Safety
This operating manual is to be preserved for future use. If a new copy nonetheless becomes neces-
sary, it is available, during the expected service life of the described product, from Customer Service
of Oelschläger Metalltechnik GmbH. Operating manuals of products that are currently being sold can
be downloaded from the website of the manufacturer. The manufacturer’s operating manual takes
precedence and must be followed without fail.
3.1 Purpose-conformant use of the product
This sensor has been developed for use on office desks in professional environments. Changes to the
sensor or use in the private sector are not permissible. Contravention will render the warranty null and
void and void the liability of the manufacturer.
The sensor must be assembled, put into operation and functionally checked by skilled personnel.
Special ambient conditions for using the sensor can be found in chapter 12.
3.2 Target Group
These operating instructions are aimed at the following group of persons:
- The commissioning staff who assembles and commissions the sit/stand desks.
- Furniture installers, maintenance staff who commission the sit/stand desk in sales rooms
or at the final customer.
The following knowledge is required to commission and assemble the STAND.GUARD G1 sensors
- Mechanical and electrical basic knowledge (a corresponding training)
- Reading the operating instructions
3.3 Symbols used in the instructions
Danger
Stands for an immediate, threatening danger. If not warded off, it will result in death or
severe injuries.
Warning
Stands for a possibly threatening danger. If it is not avoided, death or very serious inju-
ries may result.
Caution
Stands for a possibly threatening danger. If it is not avoided, light or minor injuries may
result.
Note
Designates a possibly harmful situation. If it is not avoided, the plant or something in its
surroundings can get damaged.
Warning of a source of danger.
Non-compliance with these warnings can result in harm to health, life-threatening inju-
ries and property damage.
Warning of electrical voltage.
Non-compliance with these warnings can result in injuries and property damage!
Warning of injuries caused by crushing.
Non-compliance with these warnings can result in harm to health, life-threatening inju-
ries and property damage.

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Warning of damage from electrostatic discharge (ESD).
Points to important information that must be heeded for safe operation of the described
product.
Note on the obligation to read the operating instructions.
Note to pull the power cord before the next action.
3.4 Safety instructions
These operating instructions contain safety instructions that inform you about potential hazards and
thus facilitate safe operation of the STAND.GUARD G1. Please be sure you comply with these safety
instructions!
This section provides you with general safety information that does not refer to any specific work step.
You can find the job-specific safety instructions in the respective section of the operating instructions.
There are more safety instructions on the STAND.GUARD G1 itself
3.4.1 General safety instructions
Note:Before assembling/commissioning the STAND.GUARD G1, be certain to read
these operating instructtions.
Danger:This unit can be used by children aged 8 years and above and by persons
with reduced physical, sensory or mental capabilities or lack of experience and
knowledge, if they are supervised or instructed in the safe use of the device and
understand the resulting risks.
Danger: Do not let children play with the device!
Danger: Unsupervised children must not carry out cleaning and user maintenance
Danger: You must disconnect the power supply cable from the mains supply
before switching drives, manual switches or any other accessories on the motor
controller on or off.
Caution: Use the original sensor from Oelschläger Metalltechnik GmbH only. The use
of sensors from third parties is prohibited! If unsuitable sensors are used, damage or
destruction of the table controller can occur
Warning: If there is a fault (for example, unwanted movement of the table top if, for
example, a button of the hand switch gets stuck), please immediately unplug the power
cord.
Danger: Protect the desk base and, in particular, all electrical components on the desk
base from moisture, dripping water and spray water!

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Danger: There is a danger of being crushed when the desktop position is changed.
For this reason, make sure there are no objects or persons present in the danger
zone and do not reach into the danger zone.
Attention: Modifications to the sensor are strictly prohibited!
Danger: The STAND.GUARD G1 must not be operated in potentially explosive
atmospheres!
Danger: In case of a failure, it is possible that the desktop moves a bit during every
start-up attempt before the safety shut-down comes into play. Watch out for the
possible danger of being crushed.
Danger: The collision protection described is not active during any reset process.
Danger: If the product is visibly damaged, do not assemble it or continue to use it!
Note: When unpacking, ensure ESD-compliant handling of the electronic components.
Danger: Under no circumstances may the sensors be immersed in liquids, and keep
the connecting cable away from heated surfaces.
3.4.2 Safety instructions für resellers
We consider resellers to be those companies that purchase the STAND.GUARD G1 sensors from
Oelschläger Metalltechnik and resell it as their own product.
Note:For reasons of EU conformity and product safety, we recommend that the users
provide their products with operating instructions in the respective official EU language.
Note:Be sure to enclose the operating instructions with your finished product. These
also include all safety instructions that are required by the consumer to ensure the safe
handling of your product.
Note:The operating manual for your product must contain the following information:
You are obligated to read and understand the operating manual before you start using
the product.
Point out to your consumer that the operating instructions must be kept near the
product.
Danger: Make sure you subject your product to a risk analysis so that you can respond
to possible residual risks (e.g. through constructive measures or by notices in the oper-
ating manual and/or safety instructions for your product).
Note: Make sure that unauthorised persons (for example, small children,
persons under the influence of medication, etc.) do not handle your product or the
STAND.GUARD G1.

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3.5 Repairs
Attention: In the interest of preventing mal-functions, only authorised service person-
nel are permitted to make any repairs.
Attention: If the sensor is opened, there is a risk of subsequent malfunctions.
In case of a technical defect on the STAND.GUARD G1, please contact an authorised customer
service representative. Section 11 contains solutions for the most common errors.

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4 Warranty
Oelschläger Metalltechnik GmbH provides a 24-month warranty on the STAND.GUARD G1 sensor.
The warranty covers all material and production errors and takes effect from the date of delivery. The
warranty is only valid on the condition that the sensors are assembled and used in an appropriate and
technically correct manner within the framework of the parameters described, maintenance is carried
out correctly, and repairs are only carried out by authorised service personnel.
STAND.GUARD G1 must not be incorrectly handled or used and no changes are permitted to be
made to the sensor; otherwise, the warranty expires. Please see our General Terms and Conditions of
Business for more information.
Legal warranty or guarantee obligations remain unaffected by these regulations.

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5 Overview
Figure 1: Depiction of the sensor STAND.GUARD G1
1 Sensor
2 RJ-45 plug with coding
2
1

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6 Scope of supply and necessary as well as optional accessories
Note: The STAND.GUARD G1 sensor may only be used with the table controller
STAND.CONTROL C1.
6.1 Delivery scope
The delivery scope contains:
- STAND.GUARD G1
Other accessories required for operation can be obtained from OMT.
6.2 Necessary accessories
At least the following accessories are required for purpose-conformant use.
- Table-top support frame with operationally ready STAND.CONTROL C1
6.3 Optional accessories
For more comfort, additional accessories are available to our customers.
- RJ45 multi-plugs for expanding the number of device connections: STAND.CONNECT hub
- connecting cables: STAND.CONNECT connecting cables

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7 Installation
7.1 Unpacking
Note: When unpacking, ensure ESD-compliant handling of the electronic components.
Caution: Oelschläger Metalltechnik GmbH does not provide any warranty for faults
and damage to the device that are the result of electrostatic discharge.
For unpacking electronic devices, please proceed as follows:
1. Remove the packaging material.
2. Check the contents of the package for completeness:
3. Dispose of the packaging material in an environment-friendly manner, in accordance with the
applicable national regulations in your country. Recycle reusable packaging.
7.2 Installation
Assemble the table controller STAND.CONTROL C1 in accordance with the relevant instructions.
Install the sensor STAND.GUARD G1 centrally on the underside of your table. The position and
alignment of the sensor can be chosen at will. The sensor can be positioned both on/in the longitudinal
beam of the table as well as on the underside of the table top.
You need neither additional material nor tools for the installation. The sensor is already provided with
double-sided adhesive tape at the factory. Fasten the sensor with this strip of double-sided adhesive
at the desired place.
Note: Before fitting, the control system and the sensor must be electrically
deenergised.
Note: It is recommended that the sensor be fastened centrally below the table top.
If you wish to retrospectively upgrade the sensor on a table-top support frame, to start with, isolate the
controller from the power grid.
You need neither additional material nor tools for installing the sensor. The sensor leaves the factory
with double-sided adhesive tape. Fasten the sensor using this adhesive tape at the desired place. The
surface on which the sensor is to be stuck must be free of dust and dirt.
There is no provision for the position of the sensor to be changed retrospectively. When the sensor
gets detached from it, the adhesive tape becomes unusable and if required, has to be replaced by a
new one.
Note: It is recommended that the sensor should be fastened centrally below the table-
top.
Connect the sensor to one of the RJ45 sockets (D1 or D2) in the STAND.CONTROL C1. Ensure that
when it is inserted, the RJ45 plugs snaps into place audibly. Check the firmness of the hold if required
by pulling lightly on the cable.

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If all the available sockets are occupied, you can use a STAND.CONNECT hub and a
STAND.CONNECT connecting cable to expand the number of ports available.
If the cable of the sensor is too short for your table, you can extend the length using a
STAND.CONNECT hub and a STAND.CONNECT connecting cable.
In case of need, several sensors can also be connected to a system, for example, with large table-top
support frames (angle combinations); the exact number depends on the overall configuration of the
system.
Upon completion of all the installation steps for your table-top support frame (in accordance with the
table-top support frame instructions), as the last step, set up the connection between the controller
STAND.CONTROL C1 and the power supply.

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8 Commissioning
Note: Before commissioning, the controller must be electrically deenergised.
Note: Before commissioning, ensure that the sensor is acclimatised to the values given
in the technical data.
8.1 Commissioning the controller, general
STAND.GUARD G1 is used as the sensor for the controller STAND.CONTROL C1. For the commis-
sioning, please follow the operating manual of the STAND.CONTROL C1.
8.2 Commissioning the STAND.GUARD G1
Note: It is recommended that the controller should be connected to the mains supply
only after installation and connection of the sensor.
The sensor must be at absolute standstill approx. 10 s after the supply is connected so
that it can calibrate itself. Otherwise, the calibration must be repeated.
After installation and commissioning of the controller, no further steps need to be taken for the sensor
STAND.GUARD G1. As soon as the controller is once again being supplied from the mains, it auto-
matically recognises the sensor.
For optimum functioning, the sensor automatically carries out a calibration run after a Reset. In order
that the sensor works in an optimal manner, it is important that during the calibration, there are
no vibrations at the sensor. The table may not be touched or moved. After switching on the controller,
or after reaching the minimal position at the end of an initialisation, the sensor needs approx. 5-10 s
for the calibration.
Calibration of the sensor is carried out after every initialisation / reset of the table-top frame support.
Thus, calibration can be carried out afresh at any time.
Caution: After commissioning, accessory components may not be separated from the
controller during the movement. This can result in unpredictable behaviour of the table
and is a danger to the user.
Note: It is recommended that the table controller be isolated from the mains supply
before every enhancement or replacement of accessories.

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9 Operation
In the operating manual of the STAND.CONTROL C1 controller, you will find a general description of
the operation off the table-top support frame.
9.1 Normal operation
If the desk is moved and there is a collision with an object, the sensor recognises the collision and
moves a short distance in the opposite direction. If there is a hand switch with a display connected to
the controller, it shows . This is shown on the display unit till a button is pressed again or the dis-
play goes off.
When the hindrance has been removed, the table can be moved again as usual.
Note: Remove the hindrance after a collision.
The sensitivity of the sensor can be set with the CON.STAND PC software. So also, the sensor can be
completely disabled with it. There are instructions for doing so in the operating manual of the
CON.STAND software.
If the sensor is removed during operation, this is indicated on a Comfort hand switch as Code and
in addition, the controller signals the fault acoustically by going ‘click-clack’ 3 times; the fault must be
acknowledged by pressing any key on the respective hand switch. Then, when a key is pressed again,
the system resumes working as usual, but without the additional protection provided by the sensor.
Danger: If the disabling of the sensor after the occurrence of a connection fault with the
sensor is confirmed, the danger of crushing increases, since then, operation is without
the extended system protection of the sensor.
9.2 Cascading controllers
This sensor can be connected to any controller of a cascaded system. Several sensors can be simul-
taneously operated on one system. The number of all possible system components depends on the
configuration of the entire system.
9.3 Notes regarding the functioning of the sensor
The sensor reacts to vibrations and impacts. Basically, even because of the movement of the table-top
support frame, there are already some vibrations, which are recognised by the sensor, and therefore,
the sensor can only detect collisions that return a measurement value that is greater than that of the
vibrations during a normal movement.
The sensitivity of the sensor can be set in the parameters of the controller for the up and down direc-
tions.
It is not possible to define an exact force as a collision, since a collision is
determined by several factors. This includes, for example, the exact position of the collision on the
table-top support frame.
In a collision, there arises a movement that exceeds the previously programmed threshold, and thus
triggers a collision.

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Another influencing factor is the current “loaded state” of the table-top support frame. Weights on or at
the table influence how the force can be transmitted up to the sensor. For evaluation of a collision, it is
decisive whether the weights on the table and the force of a collision act in the same direction or in
opposite directions. If the directions of the force transmitted owing to the collision, and the weights on
the table are opposite, the sensitivity may get reduced, but additionally, the exact position of the colli-
sion on the table and hence, the possibility of transmission up to the sensor is an influencing factor.
Vibrating components by or on the table can influence the sensitivity of the sensor, or result in wrong
collision detections. Owing to increased natural oscillations, the following components may make it
necessary to reduce the sensitivity of the sensor:
-Table tops not rigidly joined to the table-top support frame (sliding tops)
-Monitors, especially when they are fastened to the table-top support frame with monitor arms.
-Screening walls, modesty panels, CPU-holders or cable ducts, if they tend to vibrate when the
table moves.

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10 Disassembly/Maintenance
10.1 Disassembly
1. Disconnect the controller from the mains.
2. Separate the connections between the controller or the STAND.CONNECT Hub and the sen-
sor.
3. Then carefully detach the glued joint between the sensor and the table-top support frame. The
double-sided adhesive tape of the sensor becomes unusable when this is done.
4. If the sensor is to be re-used, carefully detach all the residues of the adhesive tape from the
sensor housing and replace the double-sided adhesive tape with a new one.
5. If the table-top support frame is to be made operational again after removing the sensor, note
that the controller then first detects a sensor fault, this is indicated on a Comfort hand switch
as Code and in addition, the controller signals the fault acoustically by going ‘click-clack’
3 times; the fault must be acknowledged by pressing any key on the respective hand switch.
Then, when a key is pressed again, the system resumes working as usual, but without the ad-
ditional protection provided by the sensor.
10.2 Maintenance
Warning: Do not open the sensor. Opening the sensor will render all warranties from
OMT null and void.
Danger: If you find defective cables, immediately isolate the controller from the mains.
Pull the mains plug.
Check the plug-and-connector joints at the controller regularly for firm fitting. Check all the cables
regularly for defects. If you find defective cables, plugs or loose plug-and-connector joints, replace the
cables. If that is not possible, or does not bring about any improvement, contact OMT customer
service
10.3 Cleaning and maintenance
Warning: Aggressive cleaning agents can cause damage or discolouration on the
product. Therefore, only agents with a pH value of 6-8 may be used.
The STAND.GUARD G1 sensor can be wiped from the outside with a soft cloth. Coarse soiling may
only be removed with a soft, damp cloth. Ensure that no moisture penetrates into the housing.

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11 Easy to rectify faults
Warning: Before troubleshooting, especially on faulty cables, the controller must be
isolated from the network.
If a fault cannot be rectified as described, isolate the product from the voltage supply, wait for at least
3 minutes and try again.
If the fault continues to occur, isolate the product from the voltage supply and contact our customer
service.
If the fault is because of the sensor, you can isolate the sensor from the controller for the time being.
The table is then ready to move.
Danger: Remember the increased danger of injury during motion without the sensor.
Table 1: Fault description of the faults that are easy to rectify.
Error description Troubleshooting
Collisions are not detected
Check if the sensor is connected to the controller.
Calibration failed (see chapter 8.2)
Perform an initialisation run.
Sensor switched off on the software side
Switch on the sensor with the CON.STAND-software
Sensor parameterised to be too insensitive
Adjust the parameter with the CON.STAND software
Check the position of the sensor
(see chapter 7.2)
Sensor faulty
Contact customer service.
Too many collisions detected
Calibration failed (see chapter 8.2)
Perform an initialisation run.
Sensor parameterised to be too sensitive
Adjust the parameter with the CON.STAND software
Cable to the sensor stretched too tight: check the
cable routing or re-position the sensor
Check correct positioning of the sensor
at the system (table-top support frame)
Vibrating components at the table-top support frame
for example, monitor arms, partition walls, modesty
panels, CPU holders or sliding table tops
Sensor faulty
Contact customer service.

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Controller clicks (goes click-clack 3 times)
Comfort manual switch shows a code
The connection between the sensor and the controller
was broken; check the plug-and-socket connections
and the cable of the sensor
ATTENTION!
The next time a key is pressed, this error is acknowl-
edged, the table moves thereafter, but without the
protection of the sensor.
Restore the connection or replace the sensor if it has
been damaged.