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7 • COMMISSIONING TEST RELATED TO UNINTENDED CAR MOVEMENT (UCM) AS PER EN 81-2 & EN 81-20
UCM tests shall be carried out by at least two technicians to prevent people entering the car with door open.
The tests detailed here below concern to the MPsava3 subsystem for locking the UCM, which is part of the full protection system against UCM and shall be
integrated with the detection and activation subsystems related to the controller.
To check the proper of devices against uncontrolled movement, carry out the tests stated in clause zc of annex D of Standard EN 81-2+A3 and in clause
6.3.13 of the Standard EN 81-20.
7.1. Preliminary requirements
The controller has to comply with the standard EN 81-2 or the standard EN 81-20, it WILL NOT HAVE to send orders to the valve, neither to the
motor/pump group when the car, with door open, is out of the door unlock area. The lift shall be provided with at least one device able to detect the
uncontrolled car movement.
YD Electrovalve
(descent)
Actuator
YD electrovalve
(Descent)
7.2. Failure simulation of the VB valve (Descent valve operated by the YD Electrovalve)
7.2.1. Failure simulation of the VB valve in ascent
The test consists of checking that the car stops in case of the VB valve failure in ascent.
Proceed as described hereafter:
1.
When the car is empty, make an ascent call to the upper floor
of the run.
2.
During the trip, with a punch, tight completely
the actuator located in top of the YD
Electrovalve (golden colour, see the previous picture):
this operation opens the VB and does not allow its closing.
3.
The test is completed when the LED of sensor SVC
monitoring the VD valve closing is lit.
4.
The test shall confirm that the distance of the uncontrolled
movement at the destination landing does not exceed the
value stated in clause 9.13.5 of the Standard EN 81-2+A3 or
in clause 5.6.7.5 of the Standard EN 81-20.
7.2.2. Failure simulation of the VB valve in descent
The test consists of checking that the car stops at level in case of the VB valve failure.
Proceed as described hereafter:
1.
When the car is empty, make a descent call to any
intermediate floor of the run.
2.
During the trip, with a punch, tight completely
the actuator located in top of the YD Electrovalve
(golden colour, see the previous picture):
this operation opens the VB and does not allow its closing.
3.
The test is completed when the LED of sensor SVC
monitoring the VD valve closing is lit.
4.
The test shall confirm that the distance of the uncontrolled
movement at the destination landing does not exceed the
value stated in clause 9.13.5 of the Standard EN 81-2+A3 or
in clause 5.6.7.5 of the Standard EN 81-20.
V700 - 11/2017
MP sava3 Hidraulic Power Unit 1 ¼" 1 ½"
22/40
YS electrovalve
Actuator
YS Start-up
electrovalve
Descent Emergency Pushbutton
MTMECMPsava3_700_EN
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