Bidirectional SSI encoder interface KL5051
Power contact
+5 V
Power contact 0 V
+5 V
0 V
Top view 
Contact assembly 
extended shock and vibration range 25g

KL5051 | Bidirectional SSI encoder interface

The KL5051 bidirectional SSI interface terminal enables the connection of digital servo drives. The encoder is powered via the SSI interface, which consists of two logic channels. The first channel us used for the positioning of the drive, while the second channel is used to set releases, to transmit parameter data and to read status information and parameter values. The 5 V DC supply voltage can be generated with the KL9505 power supply terminal and fed into the power contacts.

Technical data KL5051 | KS5051
Technology SSI encoder interface
Number of channels 1 encoder interface
Encoder connection binary input: D+, D-, binary output: Cl+, Cl-
Power supply 5 V DC via power contacts (KL9505)
Current consumption typ. 85 mA without encoder
Current consumption power contacts n. a.
Encoder supply 5 V DC
Data transfer rates 1 MHz
Serial input 24 bit width (variable)
Data direction bidirectional
Signal output difference signal (RS422)
Signal input difference signal (RS422)
Electrical isolation 500 V (K-bus/field potential)
Current consumption K-bus typ. 75 mA
Bit width in the process image input/output: 2 x 16 bit data, 2 x 8 bit control/status
Special features bidirectional
Weight approx. 80 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Pluggable wiring for all KSxxxx Bus Terminals
Approvals CE, UL, Ex
Product announcement
KL5051: available
KS5051: estimated market release on request