SFA-5000 • SFA-10000 EtherCAT
: 8,192 cpr
= 134 217 728
10
= 8,192 (cpr) * 16,384 (rev.)
Let's set a new total resolution, for instance:
must be greater than or equal to the
, the above setting is not allowed.
EXAMPLE
We install the following draw-wire encoder:
SFA-5000-EC-8192-M12
.
The physical values are:
Stroke per turn of the drum = 200 mm (7.874”)
Physical resolution per turn = 13 bits = 8,192 cpr
Max. number of physical revolutions = 16,384 revolutions
Total physical resolution = 27 bits = 134 217 728 information
Physical linear resolution = 0.024 mm = 24 µm
Max. number of turns of the drum = 25
Max. measuring length = 5,000 mm (196.85”)
Number of information = 204,800
Let's suppose that we need a tenth of a millimetre linear resolution in the
specific installation.
•
Enable the scaling function: bit 2
object = 1
•
cpr
•
Linear resolution = 0.1 mm = 100 µm
Linear resolution =
Stroke per turn
=
200 mm
= 0.1 mm
2,000
The custom number of revolutions can be as the physical number of revolutions:
Custom number of encoder revolutions =
= 16,384
•
= 32 768 000
MAN SFA_5000_10000_EC E 1.0.odt
6 - EtherCAT® interface
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