TIGIEFFE AIRO A Series, Use And Maintenance Manual

Page: 80 / 130

Use and Maintenance Manual – A16 J A18 J Series Page 80
The system needs calibration:
▪
In case of replacement of one of the items composing the system.
▪ When, following an excessive overload or a collision, without the excessive load the danger condition is signalled
anyway.
Calibration depends on the type of fitted device.
If the board is the one shown in fig.30a :
▪
switch off the machine;
▪
open the box C which contains electronic board ;
▪
without any load on the platform, fit the bridge between the two pins of the connector G ;
▪
switch on the machine;
▪
press button D (the yellow light and red light turn on);
▪
press button E (the luminosity of the red light increases a few seconds), and the overload controller will be reset;
▪ position a distributed load on the platform equal to nominal capacity plus 20% ;
▪
press button F (the green light turns on a few seconds) to store the overload condition;
▪
press button D again to exit the calibration procedure (the yellow light turns off and if the procedure has been carried
out correctly, the red light stays on signalling the overload);
▪ switch off the machine;
▪ open the jumper on connector G ;
▪ switch on the machine;
▪ check that after removing the 20% overload (only the rated load remains on the platform) the alarm condition does not
occur in any of the platform positions (platform down, up, driving, rotated);
▪ Once the adjustment has been completed, close the box which contains the board.
If the board is the one shown in fig.30b :
▪
switch off the machine;
▪
Open the box which contains electronic board.
▪
switch on the machine;
▪
With no load on the platform, press and hold buttons 1 and 4 until the word CONS appears;
▪
Press 4 to enter the CAP and 4 again to display the parameter value;
▪
Enter the correct value = 1000 via the button 1 , 2 and 3 . Press button 4 to save and exit.
▪
Press 2 and 2 again to switch to J01J , press 4 to display the parameter value;
▪
Enter the correct value = 1 via the button 1 , and 2 . Press button 4 to save and exit.
▪ Press 3 and 2 again to switch to CALB . Press 4 to switch to CAL ;
▪ After checking that there are no loads on platform, press 1 to perform the zero calibration;
▪ Load the weight equal to the nominal load and check out the value shown on the display. If it is correct, press 4 to save
and exit, otherwise press 2 and then, via buttons 1 , 2 and 3 manually enter the correct value. Press 4 and 4 again to
go back to CALB .
▪ Press 2 and 2 again to switch to ALAR , then press 4 and 2 again to switch to BLOC ;
▪ Press 4 to enter and then, via buttons 1 , 2 and 3 , enter the alarm value equal to the nominal load + the overload of
20%. Press 4 to save;
▪
Press 2 to go to DIFF and 4 again to enter. Set the value = 0045 , via buttons 1 , 2 and 3 , then 4 again to store;
▪
Press 2 to switch to TEST and 4 again to do the test. When PASS appears, press 3 three times to exit calibration;
▪
Check out if the display shows the value of the current load on the platform;
▪
Check out if with a load >= the rated load + 20% overload, the system goes into overload alarm and that, by removing
the 20% overload, the alarm condition disappears;
▪
Once the adjustment has been completed, close the box which contains the board.
AS THIS OPERATION IS VERY IMPORTANT IT IS TO BE CARRIED OUT BY SKILLED TECHNICIANS ONLY