Tractel HF 87, Operating And Maintenance Instructions Manual

Page: 18 / 30

MS 87/./. R 03/03
18
AUTOMATIC SETTING OF SAFETY TRIP POINT
AND SLACK WIRE ROPE TRIP POINT
Essential conditions :
x
THE TEST OPERATION SHOULD HAVE BEEN SUCCESSFULLY CARRIED OUT (Page 7 )
x
The relay (rEL) is set to « LO » through SET –UP N°1 (page 16)
Equipment required :
x
A lifting accessory (Load n°1) is required for setting the slack wire rope trip point S-LO.
x
A load (Load n° 2) which with the lifting accessory, is equivalent to 100 % of the working load limit of
the system. (e.g 10 T).
DISPLAY ACTION
COMMENT.
1
O
S E
Press buttons S and E simultaneously for 5 seconds to access the
menu for automatic setting of the trip points. ( The hook should be free
of any load).
2
CODE
(auto) Access code.
3
2345
× Ø
Press the buttons UP & DOWN to enter the code 2345. Confirm by
pressing E.
4
SEt.2
(auto)
Set-up N° 2. Automatic setting of the trip points..
5
N°..
(auto)
N° of the lifting system.
6
...6
× Ø
Use the arrows to enter the n° of the lifting system. Confirm with E.
7
S-LO
(auto)
Lift load N° 1 about 10 cm.
8
S-LO
E
When the load is stable, confirm the trip point by pressing button E.
9
- - - -
(auto)
The microprocessor calculates the real value of the load.
10
2750
(auto)
Display in Kg of the intermediate trip point S-LO. The example shows
2750 kg.
11
S-HI
(auto)
Using the lifting accessory which represents load N°1, lift load N° 2
about 10 cm.
Note: Up to 4 minutes is allowed to carry out this operation, after which time the monitor
returns to normal operation and the set-up must restart at point 1..
12
S-HI
E
When the load is stable, confirm the trip point by pressing button E.
13
- - - -
(auto)
The microprocessor calculates the real value of the load.
14
11000
(auto)
Display in Kg of the upper trip point (S-HI). Our e.g 11 000kg. The
microprocessor calculates this trip point to set it at 110 % of the lifted
system. The final upper trip point is automatically calculated and set
at 130 % over the safety trip point.
15
End.
(auto)
End of automatic setting procedure.
16
10000
(auto)
The display returns to normal operation. It displays 10000 which is the
current lifted load.
17
0
(auto)
The display will show 0 and switch the LO (stopping the lowering
operation) as soon as the lifting accessory, on touching the ground,
causes the signal from the load cell to fall below the S-LO trip point for
slack wire rope. Adjustable hysteresis.
Warning : After an automatic setting via Set-up n°2, you can modify all the instructions and configurations by
using Set-up n°1.(See synoptic page 16 )