Commissioning
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9.3.2
Learning the temporary reference positions
In order to be able to move in inspection mode (of the lift) or by car call in normal mode (of the lift) for the fol-
lowing steps, temporary reference positions are necessary. These are needed to calculate the positions of the
temporary inspection limit switches and the temporary final limit switches.
NOC is closed under the condition that safety circuit voltage is applied to the door circuit input
(see chapter
8.3.7 for further explanations).
SGC is closed and so the blocking of the speed governor/the safety gear is released in case of LIMAX Safe SG.
In case of LIMAX Safe SC the second spot of absolute separation of the safety circuit by SGC is closed. OC is
opened. The cabin can only be moved with the recall panel.
As soon as both temporary reference positions are learned, the cabin can move without recall if the elevator is
in normal mode (no inspection, Safe Box continues in teach mode), if the current position is between the tempo-
rary reference positions. Also, the current speed must be lower than 0.63 m/s. Otherwise, OC will open.
It is the task of the control programmer to limit the speed if LIMAX Safe SG/SC in teach
mode.
How to learn the temporary reference positions
1.
If the technician is following the steps in the commissioning chapter, the Safe Box is already in teach
mode. Otherwise teach mode may be entered now by pressing the teach button for 5 seconds.
2.
The technician moves the car to the lowest possible position using recall. He signals to the control that
the current position has to be learned as the lowest temporary reference position. For this purpose, the
cabin must be in stand still.
3.
The control passes on this signal via CAN bus to LIMAX Safe SG/SC
4.
The technician now moves the car to the highest possible position using recall. He signals to the control
that the current position has to be learned as the highest temporary reference position. For this purpose,
the cabin must be in stand still.
5.
The control passes on this signal via CAN bus to LIMAX Safe SG/SC
The control must be able to process the user requests and pass them on to LIMAX Safe
SG/SC by CAN. See
/CO_SPECS/ for further information.
NOTE!
Alternatively, the technician can first learn the top temporary reference position and then the
bottom one.
The elevator can also be moved in inspection mode (Safe Box continues in teach mode).
When calculating the positions of the inspection limit switches, the temporary reference positions replace the
highest and lowest floors, which are not yet known to LIMAX Safe SG/SC
OC will also open if the elevator is in inspection mode (Safe Box continues in teach mode) and the speed ex-
ceeds 0.63 m/s.
NOTE!
The temporary reference positions are erased when leaving teach mode by pressing the teach
button. If the Safe Box leaves teach mode because the elevator was standing still for more
than 15 minutes, the temporary reference positions are kept stored. If the teach mode is en-
tered again, the elevator can be moved both in inspection and without inspection under the
conditions described above. The temporary reference positions are also kept stored if the Safe
Box is switched off and back on.
