Download pdf - A3-NXPIN_02

TAKEDO

- 3VF NXP

and

Amendment 3

ATTACHED TO TAKEDO® - 3VF NXP

USER MANUAL

2 P134 (or later) 23-05-2012

REL. SOFTWARE DATE R.T. Check and Approval

TAKEDO® - 3VF NXP – Attachment for A3 Amendment - Version 02 dated 23-05-12 2

PAGE BLANK WITH PURPOSE


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.


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4 – PUTTING ON DUTY AND PERIODIC CHECKS OF CONFORMITY

Once the lift installation is finished and it works properly, enable and check the conformity to the Amendment 3, as follows:

A) VERIFICATION OF THE BRAKE MECHANISM LIFTING / DROPPING

1. Set P2.3.3 and P2.3.6 according with the brake micro-switches type (N.O. or N.C.), the default setting is “NOT USED” in order to allow an easy start-up of the lift.

2. Perform a test run (for example in inspection), check that you don’t see any FAULT message (72 = brake lifting missing or 73 = brake dropping missing).

3. If you see a FAULT, check in MONITOR, in V1.2.3, which is the micro-switch that doesn’t work (the DIN8 is related to the micro-switch 1, terminal 4 and the DIN7 input is related to the micro-switch 2, terminal 2). Check the connection, the mechanical assembly and the adjustment.

4. To reset the FAULT you must hold the RESET push-button for at least 4 seconds, then press RESET again.

SWITCHING THE INVERTER OFF THEN ON AGAIN, THE FAULT IS NOT RESET !

5. During the normal operation of the lift, simulate a micro-switches lifting/dropping missing and check that in the inverter a FAULT message appears.

6. If the brake doesn’t drop, the FAULT 73 is immediately effective. If the brake doesn’t lift, lift tries to finish the run and FAULT is effective when lift stops. This last feature has been introduced to prevent that a dirty or incorrectly adjusted contact makes the lift to stop trapping people inside car. Of course if the brake mechanism really doesn’t lift, the car cannot reach the floor and some other protections will trip.

B) VERIFICATION OF THE BRAKING FORCE (OPTIONAL – WITH ENCODER ONLY)

1. Check in the BASIC PARAMETERS Menu that the values in the G2.1.7 Lift Data Group (P2.1.7.1/2/3/4/5) are all correct, otherwise all the distance values will be wrong.

2. Place the car at the bottom floor.

3. Make a call, when the lift is running in high speed open a contact in the safety chain.

4. Check in the MONITOR, in V1.4.1, the total braking space (calculated from the brake control relay contact opening in the inverter) and in V1.4.2 the mechanical braking space (calculated from the brake micro-switch closing).

NOTE: The difference between the two values (V1.4.1 and V1.4.2) is only due to the brake dropping delay (mechanical delay in addition to the electrical one).

5. Read the Mechanical braking Space in V1.4.2.

6. Set P2.3.7 (BRAKE SPACE TEST) to “FAULT” (the default setting is “NOT USED”).

7. Set P2.3.8 to the value read in V1.4.2 decreasing it 200mm, and perform the same test again.

8. Check that the Fault 76 is shown by the inverter (the FAULT is reset operating as described above).

9. Now set P2.3.8 to the value read in V1.4.2 increasing it 200mm, perform the same test again and verify the correct operation.

10. The test will be automatically repeated each time there is an emergency stop while the lift is running at speed.

C) CHECK OF THE MOVEMENT WHILE THE LIFT IS STOPPED (OPTIONAL – WITH ENCODER ONLY)

1. Set i P2.3.9 (STEADY LIFT SPACE) to the value 50mm: this is the maximum shift allowed to the motor when inverter is in stand-by (with no commands). This is a further safety to check the correct mechanical brake dropping.

2. If possible, perform the steady lift shift test lifting the brake by hand; verify that, with a car shift higher than 50mm the inverter shows the Fault 77 (the FAULT is reset operating as described above).


D) CHECK OF THE CORRECT STOPPING SEQUENCE DURING RELEVELING (OPTIONAL – ONLY WITH RELEVELING OPERATION)

1. Set in P2.2.22 the combination of speed levels at which the releveling operation will be carried out (High + Low, High + Inspection, Low + Inspection, High + Low + Inspection).

2. Simulate a releveling operation and make sure that, if the stopping sequence is properly performed (the speed control opens first, followed by direction and run enable command deactivation), no “FAULT” message is displayed.

3. Simulate again the releveling operation, open a contact in the safety chain during run and make sure the inverter goes in “FAULT 81”.

4. To reset the “FAULT” status it will be necessary to press the RESET button for at least 4 seconds and then press the RESET button again.

E) PERIODIC CHECKS

The following tests must be carried out at each periodic maintenance visit on the lift, and/or at the frequency indicated by the brake manufacturers in their instructions.:

- Steps A.5 e A.6

- Steps B.2, B.3 e B.5 (both optional), checking that the read value is lower than the one set in P2.3.8.

- Step C.2 (optional)

- Steps D.3 and D.4 (both optional).

5 – SUMMARY OF PARAMETERS, MONITOR AND FAULTS RELATED TO THE AMENDMENT 3 OPERATION

PARAMETERS

Contents Description SMS Settings

(Asynch. Motor) SMS Settings

(Synch. Motor) User Setting Unit

G2.2 RUN CONFIGURATION

P2.2.22 FloorLevelSpeed 0 / Not used 0 / Not used

G2.3 BRAKE CONTROL

P2.3.3 BrakeExtSuperV 1 0 / Not Used (Note 1) 0 / Not Used (Note 1)

P2.3.4 MaxOpenTime 0,50 2,00 s

P2.3.5 MaxCloseTime 0,50 2,00 s

P2.3.6 BrakeExtSuperV 2 0 / Not Used 0 / Not Used

P2.3.7 BrakeSpaceTest 0 / No Action 0 / No Action

P2.3.8 MechBrakingSpace 500 500 mm

P2.3.9 SteadyLiftSpace 50 50 mm

Note 1 : See Chapter 4 – Step A.1

MONITOR

Contents Description

G1.2 INPUT – OUTPUT

V1.2.3 DIN7 DIN8 DIN9 → (with NXOPTA3 Brake Micro-switch 2 Brake Micro-switch 1 Run Enable Board)

G1.4 BRAKING A3

V1.4.1 Braking Space (mm)

V1.4.2 Mechanical Braking Space (mm)

V1.4.3 Steady Lift Space (mm)


FAULTS

Code Description Indications / Remedies

72 Brake Open NOK

One of the 2 Brake control inputs has not detected the correct action of the correspondent micro-switch during lifting, within the time set in P2.3.4. Check in MONITOR, in V1.2.3, which is the micro-switch that doesn’t work.

73 Brake Close NOK

One of the 2 Brake control inputs has not detected the correct action of the correspondent micro-switch during dropping, within the time set in P2.3.5. Check in MONITOR, in V1.2.3, which is the micro-switch that doesn’t work.

76 Max Brake Space

In case of an emergency stop with the lift at speed, the mechanical braking space is higher than the one set in the P2.3.8 parameter. Verify the braking force of the safety brake.

77 Max Stop Space With the inverter in stand-by (with no commands), the motor has shifted more than the space set in the P2.3.9 parameter.

81 Floor Level NOK During releveling,, the motor did not stop properly because of an incorrect command sequence.

IMPORTANT

The above listed FAULTS CANNOT BE RESET SWITCHING THE INVERTER OFF AND ON AGAIN.

To restore the operation, you must hold the RESET push-button for at least 4 seconds, then press RESET again.

For further information and advice contact:

SMS SISTEMI e MICROSISTEMI s.r.l. (Gruppo SASSI HOLDING) Cap. Soc. 260.000 i.v.

Via Guido Rossa, 46/48/50 40056 Crespellano BO R.E.A 272354 CF - Reg. Imprese Bo 03190050371 P.IVA IT 00601981202

Tel. : +39 051 969037 Fax : +39 051 969303 Tel. Assistenza Tecnica : +39 051 6720710

Website : www.sms.bo.it E-mail : [email protected]
