Laing Innotech LTC Series, Installation And Operating Instruction, Page: 19 / 57

Instruction LTC 11 Laing Innotech GmbH + Co. KG Althuette Germany - 19 -
Precondition start of operation of the controller
Before the start of operation make sure, that the parameter set suitable for the
table to be operated is loaded into the controller. If this not the case, the table
may make undesired movements, also required protection settings may not be
activated!
Starting the controller with the wrong parameter set may result in
injury to the operator and damage to the table and the controller!
When operated, the table must be free of obstacles and must be able to
freely move over the whole movement range without hitting anything or
injuring anyone!
Start of operation
After mounting the controller and the control panels, making all electrical
connections and making sure that the right parameter set is loaded to the
controller, the table can be put into service.
Upon power up, the table makes a reference run to acquire the reference
position. To do so the “up” or “down” key must be pressed until the table reaches
the reference position (normally the lowest point or the position of a limit switch)
and further until the table elevates to the lowest programmed position. (this may
be about 25mm or 1” higher than the lowest position).
After the reference has been established, the table is ready for normal operation.
By pushing the “up” or the “down” key, the table can be moved between the
upper and the lower positions defined in the parameter set in the controller
specific for this table.
Current based collision detection
As a standard all controllers are equipped with a simple, current based collision
detection. This collision detection must be activated through the parameter set.
To achieve a satisfactory functioning of this features parameters specific to the
table must be defined and entered.
When activated the current based collision detection will stop the movement of
the table as soon as the table top hits an obstacle. After the stop the table top will
move in the opposite direction by the distance specified in the parameter set.
After that the “up” or “down” key have to be pressed again to move the table top.
Please note that the sensitivity of the current based collision detection on
down ward movements is reduced drastically if the table is loaded with
some weight!