Page 239 - Keubler Motion Sensors

Absolute encoders - singleturn

Standard
ATEX / IECEx – zone 1 / 21, SIL2/PLd, optical Sendix SIL 7053FS2 (shaft) SSI / BiSS + SinCos
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SSI interface SinCos interface
Output driver RS485 transceiver type Max. frequency -3dB 400 kHz
Permissible load / channel max. +/- 20 mA Signal level 1 Vpp (±10 %)
Signal level HIGH typ 3.8 V Short circuit proof yes
LOW at I Load = 20 mA typ 1.3 V Pulse rate 2048 ppr
Resolution 10 ... 14 bit and 17 bit
Code binary or gray
SET input
SSI clock rate 50 kHz ... 2 MHz
Input HIGH active
Monoflop time ) 15 µs
Input type comparator
Note: if clock starts cycling within monoflop time a second data transfer starts
with the same data. If clock starts cycling after monoflop time, the data transfer Signal level HIGH min. 60 % of +V
starts with updated values. The update rate depends on clock speed, data (+V = power supply) max. +V
length and monoflop time. LOW max. 25 % of +V
Input current < 0.5 mA
Data refresh rate resolution ) 14 bit ) 1 µs Absolute encoders
resolution * 15 bit 4 µs Min. pulse duration (SET) 10 ms
Timeout after SET signal 14 ms singleturn
BiSS interface The encoder can be set to zero at any position by means of a HIGH signal on
the SET input. Other preset values can be factory-programmed.
Resolution 10 ... 14 bit and 17 bit
The SET input has a signal delay time of approximately 1 ms. Once the SET
Code binary function has been triggered, the encoder requires an internal processing time
Clock rate up to 10 MHz of approximately 15 ms before the new position data can be read.
Max. update rate < 10 µs, depends on the clock
rate and the data length
Power-ON time
Data refresh rate ) 1 µs
After Power-ON, the device requires a time of approximately 150 ms before
Note: – bidirectional, factory programmable parameters are: valid data can be read.
resolution, code, direction, alarms and warnings
– CRC data verification

Terminal assignment
Interface Type of connection Features Cable (isolate unused wires individually before initial start-up)
Signal: 0 V +V C+ C- D+ D- SET A B )
4 1, 2, A, B SET
Cable marking: 6 1 2 3 4 5 11 7 8 9 10 shield
+V: Encoder power supply +V DC A, : Cosine signal
0 V: Encoder power supply ground GND (0 V) B, : Sine signal
C+, C-: Clock signal ): Protective earth
D+, D-: Data signal
SET: SET input. The current position becomes defined as position zero.

© Fritz Kübler GmbH, subject to errors and changes. 02/2015 www.kuebler.com 237