Siemens SINUMERIK 810DE powerline Equipment Manual page 67

Absolute (EnDat)
Single-turn, multi-turn, and linear absolute measuring systems with two
measuring 90_ offset sinusoidal voltage signals A, B, and EnDat interface,
e.g. multi-turn encoder EQN 1325, single-turn encoder ECN 1313 or linear
systems
absolute measurement system LC181.
Transfer incremental signals:
Amplitude A – A
Amplitude B – B
Transfer serial signals:
Level:
Power supply:
Maximum supply current:
Max. encoder signal frequency
that can be evaluated:
Note
For the above frequency, the signal amplitude must be
amplitude and the deviation of the phase offset from the ideal 90
track A and B must be
Pay attention to the frequency characteristic of the encoder signals.
Fig. 4-7
Copyright © Siemens AG 2006
SINUMERIK 810D Equipment Manual Configuration CCU (PHC) – 03/2006 Edition
d
 
30
A–A
0
90_ el.
360_ el.
B–B
0
Signal curve for incremental tracks for a clockwise rotation
4 Description of the SINUMERIK 810D
4.3 Measuring system
Differential signals
A, A and B, B
typ. 1 Vpp
typ. 1 Vpp
Differential signals
Data, Data and Clock, Clock
acc. to EIA 485
5 V ±5 %
300 mA
350 kHz

60 % of the typical
.
d
between
4-65