Lika SFA-10000-FD, Руководство пользователя

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SFA-5000 • SFA-10000 DeviceNet
Let's suppose that we need a tenth of a millimetre linear resolution in the
specific installation.
•
Enable the scaling function:
23-01-0E Scaling function control
attribute = 01
•
Custom resolution per turn =
23-01-10 Resolution per revolution
=
2,000 cpr
•
Linear resolution = 0.1 mm = 100 µm
Linear resolution =
Stroke per turn
=
200
= 0.1 mm
23-01-10 Resolution per revolution
2,000
The custom number of revolutions can be as the physical number of revolutions:
Custom number of encoder revolutions =
23-01-11 Total
measuring range
= 4,096
23-01-10 Resolution
per revolution
•
23-01-11 Total measuring range = 8 192 000
NOTE
Please note that if you set a preset along the path, when the encoder moves
back and cross the zero, the value immediately after 0 will be 8 192 000 - 1, i.e.
8 191 999.
... 8,191,997 8,191,998 8,191,999 0 1 2 ...
EXAMPLE
Using the values in the previous example let's suppose that the travel in the
application is 2 m long. As the stroke per turn is 200 mm you need 10
revolutions to cover the travel length.
•
23-01-11 Total measuring range
=
23-01-10 Resolution per
revolution
* custom number of revolutions = 2,000 * 10 = 20,000
In fact:
Custom number of encoder revolutions =
23-01-11 Total
measuring range
= 10
23-01-10 Resolution per
revolution
In this case you will obtain several 20,000 information sections following each
other all along the whole measuring length. The position information will be
from 0 to 19,999; then again from 0 to 19,999 and so on.
MAN SFA_5000_10000_FD E 1.0.odt DeviceNet interface 72 of 88