ANNEX G: SUNDRIES PAGE 59
To control the reference, simply, in
mode, place the point of the punch
on the flat of the die (be careful with the pressure of the active sequence) and
read the value indicated by the POS Y1 and Y2 counters.
This value must be identical, for both counters and also correspond to the
REF Y reference value displayed on the PUNCH / DIE PROGRAMMING
page.
If it is not possible to move the die to obtain a situation as shown above, it is
possible using a die with a small opening, to place on the die a thick sheet
(which will not bend under the weight of the beam) or blocks of a known
precise thickness, (see figure below).
The value of the material introduced between the punch and the die must
then be subtracted to obtain the reference value REF Y.
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