Page 355 - Keubler Motion Sensors

Absolute encoders – multiturn

Standard
ATEX / IECEx – zone 1 / 21, SIL2/PLd, mech. multiturn, optical Sendix SIL 7063FS2 (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 singleturn 10 ... 14 bit and 17 bit
Number of revolutions (multiturn) 4096 (12 bit) SET input
Code binary or gray Input HIGH active
SSI clock rate 50 kHz ... 2 MHz Input type comparator
Monoflop time ) 15 µs Signal level HIGH min. 60 % of +V
Note: if clock starts cycling within monoflop time a second data transfer starts (+V = Power supply) max. +V
with the same data. If clock starts cycling after monoflop time, the data transfer LOW max. 25 % of +V
starts with updated values. The update rate depends on clock speed, data Input current < 0.5 mA
length and monoflop time.
Min. pulse duration (SET) 10 ms
Data refresh rate ST resolution ) 14 bit ) 1 µs Timeout after SET signal 14 ms
ST resolution * 15 bit 4 µs
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.
BiSS interface The SET input has a signal delay time of approximately 1 ms. Once the SET
Resolution singleturn 10 ... 14 bit and 17 bit function has been triggered, the encoder requires an internal processing time
of approximately 15 ms before the new position data can be read.
Number of revolutions (multiturn) 4096 (12 bit) Absolute encoders
Code binary multiturn
Clock rate up to 10 MHz Power-ON time
Max. update rate < 10 µs, depends on the clock After Power-ON, the device requires a time of approximately 150 ms before
rate and the data length valid data can be read.
Data refresh rate ) 1 µs
Note: – bidirectional, factory programmable parameters are:
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 353