Output Specification for
absolute encoders with SSI interface
Excitation voltage
Excitation current
Interface
Lines / drivers
Code
Resolution multiturn
3 dB cutoff frequency
Control input
Alarm output
Status LED
Connection
Resolution
Clock
T13
…
T21
S3
T22
S2
T23
S1
T24
S0
T25
0
T26
10 … 30 V DC
100 mA
Standard SSI
Clock and data / RS-422
Gray
12 + 12 bit
500 kHz
Direction
Alarm bit (SSI option), warning bit
Green = OK, red = alarm
Cable or male socket 12 pin
Signal Conditioner
HSSI
Absolute Encoder
synchronous serial
Data format
T1 T2 T3 … T12
Data bits
24 bit
M11 M10 M9 … M0
Mx = multiturn bits, Sx = single turn bits
Cable length
Baud rate
< 400 kHz
< 300 kHz
< 200 kHz
< 100 kHz
Color
S11 …
Transmission rate
< 50 m
< 100 m
< 200 m
< 400 m
Signal names
Note:
Extension of the cable length will reduce the
maximum transmission rate.
The signals CLOCK/CLOCK and DATA/DATA
must be connected in a twisted pair cable,
shielded per pair and common.
Connector pin no.
8
1
3
11
2
10
5
12
Signal Wiring /
Connection
Excitation +
white
Excitation GND (0V)
brown
CLOCK
yellow
CLOCK
green
DATA
pink
DATA
grey
Direction *
blue
0 V signal output
black
* Excitation + = cw increasing code, 0 V = cw decreasing code
Connection
Mating Connector
CONN-CONIN-12F-G
ASM
www.asm-sensor.com
CAT-WS-E-05
65
ASM-SENSOR [ ASM GMBH ]
