Commissioning
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9
Commissioning
9.1
Check of door monitoring
Immediately after the mechanical and electrical installation, it has to be checked whether the safety function
"door monitoring" (
8.3) works when installed, so that the technician is not exposed to any danger during
commissioning.
WARNING!
A non-correct installation could disable the safety function "door moni-
toring" and – if it strikes in the dangerous direction – lead to a danger-
ous situation. The goal of the following check is to discover a non-
correct installation before commissioning.
In order to check if NOC is open, the voltage on NOC-OUT is used. This voltage is connected via travelling
cable to the control cabinet, where it is connected to an optical indicator which lights up when NOC-OUT has
safety circuit voltage.
It has to be ensured that the state of the SC in this spot is clearly identifiable when using the optical indicator.
The documentation where to measure the voltage NOC-OUT and where to find the optical indicator is task of
the user.
At this time of commissioning LIMAX Safe SG/SC is in pre-commissioning mode,
voltage at the door circuit input of LIMAX Safe SG/SC , even if the doors are closed. When lift is switched to
recall and a direction button is pressed on the recall panel, the open
is bridged. In this case, the safety cir-
cuit voltage is connected to the door circuit input (and therefore also connected NOC-OUT because NOC
closes), under the condition that all door contacts are closed. If under the same conditions at least one door is
open, there is no voltage at the door circuit input (and hence no voltage at NOC-OUT because NOC opens).
Therefore, the following test sequence is defined:
1.
At the beginning LIMAX Safe SG/SC is in pre-commissioning mode (
open), all doors closed, not in
recall
the technician checks in the control cabinet: the optical indicator (see above) is off.
2.
All doors are still closed. The technician switches to recall and presses the direction button on the recall
panel. When the direction button is pressed, he checks: safety circuit voltage is on the measuring point
or the optical indicator is lit up. After this the technician checks: As soon as the direction button is re-
leased, the voltage of NOC-OUT is switched off or the optical indicator turns off. The technician has to
watch the change of the voltage NOC-OUT (to be measure by voltmeter) or alternatively the change of
the optical indicator at the moment when he presses or releases the direction button.
3.
The technician opens the first door contact of the door circuit (the door contact furthermost from the
door input in relation to the cabling), all other doors contacts remain closed.
The lift is still switched to recall. The technician presses a direction button on the recall panel. The tech-
nician checks: in this case (with door open) the safety circuit voltage remains turned off at the meas-
urement point and the optical indicator will remain off if the direction button is pressed.
If one of the checkpoints above failed, first the error has to be found and corrected before it is allowed to go on
with commissioning.
