During operation
- 61 -
Safety
function
Opening contacts and condition for
triggering
Reset of safe-
ty function
Hints for emergency evacuation
Over-speed
(final tripping)
OC + NOC + SGC
Opens if final tripping speed of Safe Box is ex-
ceeded. The final tripping speed depends on the
nominal speed
Manual error
reset.
It is not allowed
to carry out the
manual reset
when there are
persons in the
cabin, on the car
roof or in the
shaft
The safety gear or another braking device will
be triggered at full speed. The hints for emer-
gency evacuation are valid here as well
Passengers must be evacuated before a man-
ual reset is carried out.
Door bridging NOC
Is active (closes the safety circuit) if either the
conditions for door bridging levelling or for re-
levelling are fulfilled.
Conditions for door bridging levelling are fulfilled
if:
1.) current position is in a levelling door zone
2.) current speed < 0.8 m/s
3.) door bridging levelling has been enabled for
this floor via CANopen.
Conditions for door re-levelling are fulfilled if
1.) current position is in a re-levelling door zone
2.) current speed < 0.3 m/s
3.) door bridging re-levelling has been enabled for
this floor via CANopen.
For details on how to enable / disable door bridg-
ing for levelling/re-levelling, refer to
CO-Specs
If door bridging
is active or all
doors are
closed, NOC
closes again
The NOC opening due to these two safety
functions does not necessarily indicate a lift
error. It may belong to normal lift operation –
depending on the handling of the door bridg-
ing by the lift control.
No emergency evacuation necessary
Door monitor-
ing
NOC
Opens if door circuit is open without door bridging
being active.
Over-speed
teach
(0.63m/s)
OC
Opens if the Safe Box is in teach mode and a
speed of 0.63 m/s is exceeded
After 10 s stand-
still
Emergency evacuation is not necessary be-
cause the lift can be moved again after 10 s
standstill
Inspection
OC + NOC
Opens if lift is switched to inspection mode and no
direction button is pressed.
OC + NOC
close if inspec-
tion mode is left
or a direction
button is pressed
Emergency evacuation is not necessary. This is
a part of the normal lift operation
“Manual error reset” is mentioned in the column “Reset of the safety function” for some safety functions in the
table above. For those safety functions, the error state is kept stored in a non-volatile way. That means that even
after LIMAX Safe SG/SC was switched off and then back on the contacts specified for the safety function remain
open.
Before resetting the error, the technician must make it sure that there is no person in the cabin, on the roof or in
the shaft. The lift must also be blocked for public usage. The cause of the error must be corrected.
To reset the error, the technician must press the reset button 3 times very shortly & quickly (each press is shorter
than half a second and the interval between presses is not more than half a second). After a successful reset the
respective contacts close and the error is cleared.
Before re-opening the elevator for public usage, the cause of the (lift) error has to be found and corrected.
Only a trained technician is allowed to reset the error. The technician’s training is the responsibility of the cus-
tomer. Likewise, it is the responsibility the customer to prevent the unauthorized usage of the reset button. The
minimum requirements are clearly visible information labels, placing the button in the machine room or in a
locked control cabinet and outside the hazardous areas.
