Evaluative Encoder Systems - Siemens SINUMERIK 810D Configuration Manual

4 Description of the SINUMERIK 810D
4.3 Measuring system
4.3.2

Evaluative encoder systems

Incremental
Incremental systems with two 90 degree offset sinusoidal voltage signals A and
measuring B and a reference mark R.
e.g. ERN 1387 (motor measuring system)
systems
Transmission:
Amplitude A -- A
Amplitude B -- B
Amplitude R -- R
Voltage supply:
Maximum supply current:
Max. evaluative encoder signal frequency: 350kHz
Note
At the frequency stated above, the signal amplitude must be ² 60% of the
nominal amplitude and the deviation from the ideal phase displacement of 90
between track A and B ±must be ¦ 30
Note the encoder signal frequency response.
Fig. 4-7
4-70
A--A
0
_
90 el.
360
B--B
0
Uniqueness range
R--R
0
Signal chart for incremental encoders at clockwise rotation
SINUMERIK 810D Manual Hardware Configuration (PHC) - - 11.02 Edition
Differential signals
A, A; B, B and R, R
typically 1 Vpp
typically 1 Vpp
typically 0.5 Vpp -- 1 Vpp
5V 5%
300mA
_
.
_
el.
E Siemens AG, 2002. All rights reserved
11.02
12.95
_
0.5V
0.5V