Siemens SLI-5310 Instrucciones de operaciones Pagina 86

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SSI position values
The position value beginning with the
Most Signifi cant Bit (MSB fi rst) is trans-
ferred on the DATA lines in synchronism
with a CLOCK signal transmitted by the
control. The SSI standard data word length
for singleturn absolute encoders is 13 bits,
and for multiturn absolute encoders
25 bits. In addition to the absolute position
values, incremental signals can also be
transmitted. For signal description see In-
cremental signals 1 V
PP
.
The following functions can be activated
through programming inputs:
Direction of rotation
• Zero rest (setting to zero)
Data transfer
T = 1 to 10 μs
t
cal
See Specifi cations
t
1
i 0.4 μs
(without cable)
t
2
= 17 to 20 μs
t
R
j 5 μs
n = Data word length
13 bits for ECN/
ROC
25 bits for EQN/
ROQ
CLOCK and DATA not
shown
Pin layout
17-pin
coupling M23
Power supply Incremental signals Position values Other signals
7 1 10 4 11151612131417 8 9 2 5
U
P
Sensor
U
P
0 V
Sensor
0 V
Internal
shield
A+ A– B+ B– DATA DATA CLOCK CLOCK Direc-
tion of
rota-
tion
1)
Zero
reset
1)
Brown/
Green
Blue White/
Green
White / Green/
Black
Yellow/
Black
Blue/
Black
Red/
Black
Gray Pink Violet Yellow Black Green
Shield on housing; U
P
= Power supply voltage
Sensor: With a 5 V supply voltage, the sensor line is connected in the encoder with the corresponding power line.
1)
Vacant on ECN/EQN 10xx and ROC/ROQ 10xx
Comprehensive descriptions of all
available interfaces as well as general
electrical information is included in the
Interfaces for HEIDENHAIN Encoders
brochure, ID 1078628-xx.
Antriebsgeber_en_2013.indd 86 12.11.2013 06:56:22
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