PAGE 42 USER GUIDE DNC 60 PS
During the calculation, the TOL (tolerance)
field indicates the distance defined according to
the TOL explication below.
When working with ideal curve, this field
indicates the theoretical radius requested by the
operator. (See Ideal curve, page 68).
CR
Num
ber of bends requested when working
with ideal curves. (See Ideal curve, page 68).
Thi
s number must be between 3 and 99. The
value 2 makes it impossible to change modes.
Remark: This number must be such that the
length of the ideal curve segments
are greater than half the length of
the die V opening.
TOL
Tolerance. If the value in the CR field is equal
to 1, the tolerance indicates the value accord-
ing to the illustration below.
R1 = Bending radius introduced by the
operator.
ri = Bending radius calculated by the system.
If the value in the CR field lies between 4 and
99, indicates the difference between the chord
formed by two bends and the arc of the theo-
retical circle, that is the difference between the
theoretical radius ri and the apex A of the
chord.
ri = Theoretical bending radius requested by the operator.
A = Apex.
For an example of ideal curve, see Ideal curve, page 68.