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
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