Datalogic ENC-58 PROG, Instruction Manual, Page: 27 / 38

ENC58 PROG
22
Example 1
Let's assume that the encoder is mounted on the driven draw roller of
a slitter and the circumference of the roller is 753 mm.
We can set a resolution of 7530 PPR (
Resolution
= 7530) to control
the movement of the roller with a tenth of a millimetre resolution.
In this way we convert a rotary measurement value (for example:
10000 PPR) into a linear measurement value, thus we are able to
control the unwinding of a plastic or paper web from the reel and
activate the blades to cut 1-m long sheets with a tenth of a millimetre
resolution.
Example 2
Let's assume that an axis is guided by a ball screw; a motor fitted
with a reduction gearbox having 1:50 reduction ratio is installed at an
end of the system, while the encoder is installed at the opposite end
of the system.
As we know the reduction ratio of the reduction gearbox, we can set
a suitable resolution in order to control the motion of the motor
precisely and calculate the input speed starting from the known
output speed.
Example 3
Let's assume that the encoder is mounted on the SFI draw wire unit
and the application has a 5500-mm long linear travel.