Page 63
Advanced Settings
confocalDT 24x1
6.9
Encoder Inputs
A maximum of three encoder values can be assigned to the measured data. They will
then be issued and used as trigger conditions. This exact assignment to the measured
values is ensured by the fact that exactly the encoder values are output that are exist in
half of the exposure time of the measured value (the exposure time may vary due to the
control). Tracks A and B make it possible to detect directions. Each of the three encod-
ers can be configured separately. The encoder socket configuration, see Chap.
Encoder 1 /
2 / 3
Interpolation
single / double / quadruple resolution
Effect on refer-
ence track
no effect / set on first track /set with every track
Set on value
Value
Maximum value
Value
6.9.1
Interpolation
The counter reading increases or decreases with each interpolated pulse flank.
Increase encoder value
Decrease encoder value
Single resolution
A
B
1
2
34
33
Double resolution
A
B
1
2
3
4
34
33
32
31
Quadruple resolution
A
B
1
2
3
4
5
6
7
8
34
33
32
31
30
29
28
27
Fig. 50 Pulse sequence encoder signals
6.9.2
Effect on the Reference Track
No effect
. The encoder counter continues to count; the signal is reset when the con-
troller is switched on or if you click on
Set on value
.
To set on first track
. Sets the encoder counter to the defined value, if it reaches
the first reference mark. It is the first mark after turning on the controller. Without turning
off only after pressing the button
Use next mark
.
To set with every track
. Resets the encoder counter to its starting value at all
marker positions or when reaching a marker for a second time (e.g. with traversing
movements).
Track B
Zero pulse /
Reference mark
Track A
Fig. 51 Reference signal of an encoder
6.9.3
Set on Value
The encoder are set to this value each time the controller is switched on, also at the
reference marks (if used).
