SMS TAKEDO-3VF, Руководство пользователя

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TAKEDO
®
- 3VF NXP – Attachment for A3 Amendment - Version 03.1 dated 01-12-17
3
1 – FOREWORD
The lifts which are put on duty from 31-12-2011, must comply with the Amendment 3: 2009 of the EN81-
1:1998 European Standard.
It means that the lifts
“shall be provided with a means to stop unintended car movement away from the
landing…”.
The choice of the proper device to fulfil the Standard requirements is up to the lift manufacturer, however a
safety double brake of the machine (geared or gearless), built up and certified in conformity with the
Standard requirements, is considered a
“built-in redundancy” system so, using this kind of brake, the
conformity to the Standard is assured if the correct operation is self-monitored:
1) The self-monitoring could include verification of correct lifting or dropping of the brake mechanism or
verification of the braking force.
2) If a failure is detected, the next normal start of the lift shall be prevented.
3) When the self-monitoring has indicated a failure of a single stopping element of the brake, the reset of the
lift shall require the intervention of a competent person.
4) Self-monitoring is subject to type examination.
2 – THE TAKEDO
®
- 3VF NXP INVERTER COMPLIES WITH THE
AMENDMENT 3: 2009 OF THE EN81-1: 1998 STANDARD
The TAKEDO ® - 3VF NXP, equipped with the P127 (or later) software, performs THE CONTROL AND THE
SELF-MONITORING OF THE SAFETY BRAKE as required by the Standard, and it is certified by IMQ with
CERTIFICATE OF CONFORMITY N°716 dated 12-09-2011 .
A copy of the certificate is enclosed a t the end of this document.
THE BRAKE MUST BE CERTIFIED AS WELL, IN CONFORMITY WITH THE REQUIREMENTS OF THE
AMENDMENT 3: 2009 OF THE EN81-1: 1998 STANDARD.
The control of the safety brake of Takedo
® 3VF-NXP provides:
- The self-monitoring, which checks that each single brake lifts and drops at every run, preventing the next
normal start of the lift if a lifting or a dropping fails (mandatory).
- The braking force control, checking the stopping distance each time that the car suddenly stops at speed,
with the brake forced to drop (optional – with encoder only).
- The control that the motor is stopped if the inverter is in stand-by, with no commands (optional – with
encoder only).
- Only a competent person intervention can make the lift to restore the operation (mandatory).
- Also, the inverter automatically performs the control of the command sequence:
if, during floor releveling, the stopping sequence is not executed properly (that is, lack of the releveling
speed level first, with subsequent deactivation of direction and run enable) and all of the controls open
simultaneously, the inverter goes in FAULT mode as it regards the procedure as an abnormal stop due to
the intervention of the safety circuit which by-passes the door safety contacts.
Only a competent person intervention can reset the FAULT status.
3 – CONNECTIONS FOR AMENDMENT 3
The inverter controls the status of the micro-switches, mounted on each brake mechanism, by means of the
inputs 2 and 4 in the NXOPTA1 board; the common terminal (positive, 24VDC) is the number 6, on the same
board.
The micro-switches can be both NORMALLY OPEN (N.O.) and NORMALLY CLOSED (N.C.),
the choice is made through apposite parameters totally independent: in effect you can get the micro-switch 1
N.O. and the micro-switch 2 N.C. or vice versa, or both N.O. or N.C. (SMS suggests the last one solution).
In the following page you can find a detailed drawing which shows the TAKEDO
®
- 3VF NXP input-output
connections to fulfil the Amendment 3, complete with the necessary notes for a correct application.