Diagonal Saw; Figure 5: Flying Saw - Diagonal Saw - Nord Drivesystems SK 200E Series Supplementary Manual

Pos : 192 /Anleitungen/El ektr oni k/POSICON /4. F unktions bes chr eibung/Gleic hlauf/Fliegende Säge_04_Diagonalsäg e @ 14\mod_1478850117652_388.doc x @ 2303085 @ 4 @ 1
4.9.8.2

Diagonal saw

The diagonal saw is a special case of the "flying saw". Here, no differentiation is made between the
slave and the processing axis. The axis to be synchronised moves at a defined angle (e.g. 30°)
transversely to the direction of the material. The movement therefore comprises the vectors of a
longitudinal and a transverse direction. Because of this, the angle must also be taken into account for
the speed ratio between the master and the slave.

Figure 5: Flying saw - Diagonal saw

Calculation of the speed ratio for a diagonal saw
P608 [-xx] / P607 [-xx] = (R
For the diagonal saw, the advance movement of the saw is therefore proportional to the belt speed.
Therefore, the advance movement of the saw and the belt speed cannot selected independently (as
long as the angle is kept constant). For the "normal" flying saw, the advance movement of the saw is
controlled via a separate axis, independently from the speed of the belt or travel.
Regardless of the setting in parameter P600, the technology function "flying saw" is always executed
with linear ramps and a speed of movement with maximum frequency. Therefore: the return
movement of the saw is always performed with the set maximum frequency, which in general also
corresponds to the maximum speed during synchronous movement.
Pos : 193 /Allgemein/Allgemeingültig e Module/---------Seitenumbr uc h kompakt --------- @ 13\mod_1476369695906_0.doc x @ 2265495 @ @ 1
BU 0210 en-3117
Master drive
Slave drive
* D
Gear Unit Slave Master
α = Slave angle – Direction of motion relative to the direction of motion of the master [°]
R = Speed ratio
D = Diameter of gear unit output
4 Function description
V
slave
V = V
y
α
sin(α)
V = V * cos(α)
x slave
) / (R * D ) * cos(α)
Gear Unit Master Slave
*
slave
55