6.5
Attainable Traversing Speed
The maximum attainable traversing speed of the encoder is determined by the maximum output
frequency of the interpolator and/or the maximum counting frequency of the operator‘s evaluation
electronics�
In order to avoid counting errors, the interpolator‘s output frequency is matched to the counting
frequency of the operator‘s evaluation electronics�
This adaptation is possible in discrete frequency steps�
The maximum attainable traversing speed (v
max
) is calculated according to the following formula:
v
max
= f · TP
[m/s]
i · SF · 4
f
Output frequency set by the manufacturer for
4-times
evaluation
by
the
interpolator
[MHz]
TP
Grating
period
[µm]
i Interpolation
factor
(5-times, 10-times, 25-times, 50-times oder 100-times)
SF
Safety
factor
=
1�5
Interpolation
w/o
5-times
10-times
25-times
50-times
100-times
Resolution (µm)
5
1
0�5
0�2
0�1
0�05
Min� clock frequency
of the counter (MHz)
2
4
16
4
24
4
24
4
24
4
24
Min� edge separation
(µs)
0�5 0�25
0�063
0�25
0�042
0�25
0�042
0�25
0�042
0�25
0�042
Max� traversing speed
(m/s)
10
2�66
10
1�33
8
0�53
3�2
0�27
1�6
0�13
0�8
•
with 4-times evaluation
Chart
4
v
max
dependent on the interpolation factor and the clock frequency of the counter
17/58
KIT
L
-Series
