Martela Oyj
Takkatie 1
FI-00371 Helsinki
[email protected]
3.2 Initialisation of the table (reset)
NOTICE
Initialisation should be done when the table is in normal position, not upside down. A reset cycle should
be made with emptied table top.
Initialise the table by pressing and holding the
DOWN
button as long as the table reaches its lowest
position and then moves slightly upwards (5 mm). Now the table is ready to use and the control box
has registered the height settings. The settings will remain even if mains power is disconnected. If the
initialising is interrupted in the middle of the run, the initialising must start again.
NOTICE
If any of the actuators is replaced the
mains power must be disconnected
when actuator cable is
disconnected. Otherwise the control box cannot be initialised and the actuators may be damaged if the
table is used.
3.3 Anti-Collision™
The function (anti-collision) is an option for the standard 821OH4, 1010185 (CBD4/CBD5/CBD6) ad-
vanced/control box software 0077432 version 1.66 and later. A system with anti-collision can limit ma-
terial damages on a table 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 two
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 821OH4, 1010185 DLs/DBs are running the CBD4/CBD5/CBD6 monitors the current con-
sumption on each channel using a special algorithm. If the current consumption on one channel is in-
creased by more than a predefined slope, a collision is assumed and all channels are stopped imme-
diately and all DLs/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 ap-
prox. 20kg. Downwards the load will be approx. 40 kg + the load on the 821OH4, 1010185 (DL/DB)
(the table + what is on top of the table). The 40 kg are needed to activate the anti-collision function.
Situations where the anti-collision does not work
There are situations where the anti-collision will not be activated. These situations are:
• If the collision happens during the initialisation phase
• If the collision happens within the first 1000 msec or after the control button has been released
• If the collision happens between the floor and the table and the load on the table + the weight of the
legs are lower than 40 kg
• If the collision happens over too long time, e.g. if the collision is with a soft object.
3.4 PIEZO™ integrated sensor
For optimised safety against squeezing and blocking on a table, LINAK has developed the DBs and
columns with an integrated sensor, called PIEZO. The option minimises the risk for damages on a table
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.