Tractel HF 32/1/B Mode d'emploi

MS 32/1/B R 03/03 1

HF 32/1/B Universal load cell

equipment in

accordance with

CE directives

Operating

and

maintenance

manual

MS 32/1/B R 03/03 2

GENERAL WARNING 2

INSTALLATION OF HF 32 LOAD CELL 3 – 4 - 5

INSTALLATION AND CONNECTION OF HF 85 MONITOR 6

OPERATION AND INSTALLATION OF HF 32 AND HF 85 7- 8

GENERAL WARNING

1- Reading and fully understanding the technical data sheets relating to this

equipment is essential for the best use of this high technological material

that you have received . All the technical data sheets are available on

request.

2- Before installing and operating Dynasafe equipment it is essential for the

safe and correct operation of the material that this manual be read and fully

understood and that all the instructions be followed. This manual should be

made available to every operator. Extra copies of this manual will be

supplied on request.

3- The installation and the operation Dynasafe equipment should only be

carried out in accordance with the appropriate health and safety at work

regulations.

4- Never apply to the Dynasafe a load or an effort in excess of the working

load limit, and never use it for an operation for which it is not intended.

5- TRACTEL S.A.S declines any responsibility for the consequences of

dismantling or altering the machine by any unauthorized person.

6- Dynasafe equipment must not be used in explosive atmospheres.

7- Dynasafe equipment must only be used in a system designed for lifting

people after ensuring that the appropriate operating coefficients have be

used in accordance with the current regulations.

8- Prior to the use of Dynasafe equipment with complementary equipment

relaying the signals to an operating system, the user or installer of this

system should carry out a specific risk analysis of the operating functions.

The appropriate measures should be taken to obviate risks identified.

MS 32/1/B R 03/03 3

INSTALLATION OF HF 32/1/B LOAD CELL

Components of the load cell

A- 2 m connecting cable

B- Flat washer.

C- Adjusting pin.

D- Locking ring.

E- Load cell body.

Procedure for installing load cell

Essential condition : the hook of the lifting system should be free of any load.

- Position the adjusting pin as a function of the load range and wire rope diameter (see p. 4).

- Remove the tightening bracket (K).

- Position the load cell on the wire rope near the dead end/fixed point. The connecting cable

should be uppermost.

- Replace the tightening bracket (K) ensuring that it is correctly positioned depending on the

diameter of the wire rope. (See page 4)

-Adjust the tightening screws (J) symetrically (+/- 0.5 kgm) to ensure that there is no risk of

moving the load cell out of line with the wire rope. Excessive tightening may break the

bracket.

- Operate the lifting system up to the upper limit switch and ensure that the sheaving or

bottom block does not foul the load cell. If this happens adjust the upper limit switch so that

there is an appropriate distance between the load cell and the bottom block. Also check that

when the bottom block is in the upper position the load cell is not in contact with the

overhead crane.

- Wire the connecting cable from the load cell t the control box. Ensure that the cable is

secured.

F- Tare screw.

G- Locking nut.

H-Traction part.

I- Safety washer.

J- Tightening screw.

K-Tightening bracket.

L-Rubber compression pad.

M-Wire rope.

N- Fixing screws for circuit

breaker.(do not touch)

Fig. 1











MS 32/1/B R 03/03 4

INSTALLATION OF HF 32/1/B LOAD CELL

Positioning the adjusting pin as a function of the effort in the wire rope

Important remarks

- Before loading and if no preadjustment has been made in the factory, unscrew the

adjustment screw at the most, because you risk to destroy the transducer.

- To select pin and bracket position, load has priority over wire rope diameter.

- Never remove the locking nut (G) because tare screw (F) could damage the

microswitch.







For wire rope from 14 mm to 16 mm diameter

and for loads ranging from 150 kg to 3200 kg.

For wire rope from 5 mm to 8 mm diameter

and for loads ranging from 50 kg to 900 kg.

For wire rope from 9 mm to 13 mm diameter

and for loads ranging from 100 kg to 1800 kg.

Fig. 2

MS 32/1/B R 03/03 5

INSTALLATION OF HF 32/1/B LOAD CELL

Correct positioning of the tightening bracket

depending on the diameter of the wire rope.

Rubber compression pad

M6 screw * 30 mm (x2)

M6 screws* 35 mm (x2)

5 mm to 8mm wire rope

without rubber compression pad,

M6 screws * 30 mm(supplied)

9 mm to 16 mm wire rope

with the rubber compression pad,

M6 screws * 35mm

Fig. 3

MS 32/1/B R 03/03 6

OPERATION AND ADJUSTMENT OF HF 85 LOAD CELL

The switch is 25 mA 24V AC or 2 mA 15 V DC. It is therefore necessary to check the

interface compatibility if HF 85 is not used.

Procedure for installation and connection

- Mount the HF 85 monitor to the DIN rail in the electrical control box containing the

lifting controls.

- Wire the high speed lifting contactor coil in series between terminals 07 and 08.

- Wire the high speed lifting contactor coil in series between terminals 15 and 16.

- Wire the electronic alarm, HF90/1, to terminals 03 and 04 taking care to observe

the correct polarity. The alarm function is desactivated automatically 15 seconds

after the detection of an overload condition.

- Wire the electronic flashing light, HF90/2, to terminals 04 and 05 taking care to

observe the correct polarity. This flashing light function remains active whilst there

is an overload condition.

- Connect the load cell wires to terminals 01 and 02 ( non –polarized)

- Connect the power supply to the monitor : 220Vac to terminals 09 and 10 or 380

Vac to terminals 09 and 11.

Note: If necessary connect terminals 12 and 13 to normally open (NO) potential free

contactor on the high and low speed lowering contactor to eliminate the possibility of

detecting an overload condition and therefore the triggering of the alarms during

lowering. In fact, the dynamic effects in the dead end wire rope are greater on

lowering than on lifting.

ALARMSWIRING FROM LOAD CELL

220

380

ELECTRICAL CONTROL BOX

HIGH SPEED LIFTING CONTACT

LOW SPEED LIFTING CONTACT

POWER SUPPLY

Vac





CAP

022 38 DEPH

EFF.DYN.

OFF

OFF ON

Fig. 4

MS 32/1/B R 03/03 7

INSTALLATION AND ADJUSTMENT OF HF 32 AND HF 85

Load cell Alarms Contactors

Auxiliary

contact

Contactors

0+24 0NC CNO

0220 380

Vac Supply

NC CNO

000 00000

011 1 1 1 1 1

TEST

CAP

022 38 DEPH

EFF.

MONITEUR HF85

Test function

Once the load cell has been fitted and the various connections have been made to

the monitor, there is a test procedure to check the correct operation for the

installation.

-Check that the hook of the lifting system is free of any load.

- Press the test button on the front of the monitor.(This button has the effect of

simulating an overload condition ).

-Once the test button has been pressed, the LED « L1 » should light up whilst the

LED « L2 » will light up when the dynamic effect of the value of the trip point has

been reached. (see page 8, point 7).

-Simultaneously, the relays trip and the alarms should operate.

-When the test button is released, it takes 5 seconds for he contactors of the

monitor to reset themselves to the « ON » position.

Fig. 5

MS 32/1/B R 03/03 8

OPERATION AND ADJUSTMENT HF 32 AND HF 85

Adjustment of the safety trip point

Essential conditions : - The load cell must be correctly installed and wired.

- The hook of the lifting system should be free of any load.

- A successfull operating test

Equipment required : - A load (“Pm”) equivalent to 100 % of the working load limit

of the lifting system .

- An additional load equivalent to 10 % of « Pm ».

ACTION EXPLANATION

1Lift the two loads

(100% + 10% of Pm)

by +/- 10 cm.

The additional 10 % load represents the overload value permitted under the

European directives.

If an overload situation is detected in the wire rope ( without lifting the loads)

the preadjustment of the load cell in the factory is too low for your lifting

system.

Solution: release the tare screw (F - see fig. 4) one turn at a time and restart

at the beginning of point 1.

2To adjust the safety

trip point.

Use the tare screw (F).

Warning : incorrect adjustment may damage the circuit – breaker.

Do not forget the locking nut (G). The switch is a normally closed contact

(NC), requiring the opening of the switch to set off an overload condition.

Turn clockwise to reduce the value of the trip point.

Turn anticlockwise to increase the value of the trip point

3Lower the loads

4Remove the

additional load (10%

of « Pm »)

5Lift load « Pm »

using slow speed

lifting

No overload condition should be detected.

However, should the overload condition be tripped, see point 7 : Dynamic

effects filter.

6Lift load « Pm »

using high speed

lifting.

No overload condition should be detected.

However, should the overload condition be tripped, see point 7 : Dynamic

effects filter.

7Dynamic effects

filter using

potentiometer

« EFF. DYN »

Under certain conditions, the dynamic effects may create an overload

condition which will set off the safety system. The potentiometer on the front

of the monitor acts as a filter for this phenomenon by slowing down the

reaction of the relays in relation to the opening of the microswitch. The

potentiometer « EFF. DYN » has an adjustment range of 0 seconds (-) to ± 3

seconds (+).

MS 32/1/B R 03/03 9

NOTES :

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