Additional Digital, Incremental Real-Time Signal (Bml_S1G0; (Bml-S1G0; Important - Balluff BML-S1G0-7-M5E-0 Serie Manual De Instrucciones

BML-S1G0-_7_ _-M5E_-_0-_ _
Absolute Magnetically Coded Position Measuring System
6
Interfaces (continued)
6.6 Additional digital, incremental real-time signal
(BML_S1G0-_ _ _ _-M5EQ-_0-)
The digital incremental interface is described in
the document Interfaces for BML Magnetically
Coded Position Measuring System (Doc.
No. 929191). The document is part of this guide
and must be used.
The outputs have the following data:
Outputs Name in the interface
document
+A, –A
+B, –B
+Z, –Z
Tab. 6-15: Parameters for the digital incremental A/B interface
With the BML-S1G0-_ _ _ _-M5EQ-_0-... with magnetic
tape, the maximum movement speed depends on the
minimum edge separation and the mechanical resolution
(see Tab. 6-16).

Important!

– The controller must be able to count the
minimum timed edge separations indicated
in the tables (note the counting frequency of
the controller!).
– The min. edge separation can even occur at
a standstill due to the internal interpolation
process.
– Always select the next-higher movement
speed or the next-largest min. edge
separation, otherwise position detection
errors may be created by the controller
during evaluation.
Examples for configuring the min. edge separation/
resolution/travel speed are described in the document
Interfaces for BML Magnetically Coded Position
Measuring System (Doc. No. 929191).
Min. edge separation
[µs]
0.11
0.26
0.42
0.94
1.80
3.50
7.00
14.00
21.00
Tab. 6-17: Connection between minimum edge separation, counting
frequency, sampling rate and signal frequency.
20 english
Shown in interface document
as high
A
B
Z
Min. counting frequency
[kHz]
9091
3846
2381
1064
556
286
143
71
48
+A > –A
+B > –B
+Z > –Z
Min. edge
separation
1 µm
D 0.11 µs
E 0.26 µs
F 0.42 µs
G 0.94 µs
H 1.8 µs
K 3.5 µs 0.15
L 7 µs 0.079
N 14 µs 0.039
P 21 µs 0.026
Tab. 6-16: Selection aid for maximum movement speed with digital
real-time signal
For further information, see Type code
breakdown on page 31.
Min. sampling rate Signal frequency (basic oscillation)
[kHz] [kHz]
18182
7692
4762
2128
1111
571
286
143
95
Physical layer Remarks
RS422
RS422
RS422 Not present
V corresponding to edge
max
separation and resolution [m/s]
Resolution
D E F
2 µm 5 µm
5 10 10
2 4 10
1 2 6
0.6 1.2 3
0.3 0.6 1.6
0.3 0.79
0.15 0.39
0.079 0.19
0.052 0.13
2273
962
595
266
139
71
36
18
12
G
10 µm
10
10
10
6
3.2
1.5
0.79
0.38
0.26