Table des Matières
Publicité
1.2.3
Electrically as well as hydraulically operated passenger and freight lifts
In order to adhere to the permissible total stopping distance in the case of an unintended
car movement, the length of the door zone must be limited depending on the installation
and its maximum length calculated during the course of planning the lift system.
For the device in question, the reaction times of the detecting element (sensors and their
control system) as well as the reaction times and reaction distances of the triggering ele-
ment and those of the braking element(s) in addition to the maximum possible accelera-
tion by the drive in the event of an error (if applicable) and the mass ratios and other fac-
tors that influence the movement of the lift system (compensation tools, rope lengths de-
pending on the type of rope arrangement and drive arrangement,...) are known for this
purpose.
The calculated, maximum door zone size must be entered in the menu of the control sys-
tem during commissioning. During the automatic learn drive, the actually specified door
zone lengths are automatically checked for correctness at all floors by the control system.
During tests of the lift system in the course of the conformity assessment procedure, tests
"UCM-A3 test upward" and "UCM-A3 test downward" are to be performed in the test menu
of the FST controller.
This ensures that the UCM case is performed with the assistance of the UCM test relay
under safe conditions, i.e., with closed car door and locked landing door.
Both UCM cases, the "exiting of the door zone" as well as "excessive speed" (only for
electrically operated lifts with rope drive) with open car door(s) and/or unlocked landing
door(s), are detected by the control system. The lift system is brought to a standstill with
the "LSU-UCM-A3 Error" error message and can only be put back into operation by reset-
ting the error message in the control system menu by a competent person.
In the case of a power failure, the "LSU-UCM-A3 Error" is stored and prevents the installa-
tion from being operated upon restoration of power.
Designation
FST-2XT safety circuit by-
pass control
Contactor
valves
Zone magnet switch
Speed signal > 0.2 ms
Speed signal > 0.2 ms
Manuel de montage et de mise en service FST-2XT FST-2XTs
Annex to the EU Type Examination Certificate
No. EU-ESD 023 of 2016-10-04
Electr./mech. switching
for
brake
/
Siemens 3RTxxx
Schmersal BN32r
Normally open (NO) con-
tact switching time
Restarting precision
FST-2XT
Frequency inverter
Detection time
10 ms
12 ms
0.3 - 1.5 ms
+ / - 0.25 mm
102 ms
15 ms
138
Publicité
Table des Matières
