5 | Technical data
STOBER
44
05/2019 | ID 442790.01
5.5.3
X4
EnDat 2.1 digital encoders
Specification
EnDat 2.1 digital
U
2
12 V
DC
(unregulated)
I
2max
250 mA
I
2min
—
Encoder design
Single-turn and multi-turn; not suitable for linear encoders
Clock frequency
2 MHz
Max. cable length
100 m, shielded
Tab. 39: EnDat 2.1 digital specification
Information
An EnDat 2.1 digital encoder can be connected only if certain general conditions are adhered to and STOBER has been
consulted in advance.
EnDat 2.2 digital encoders
Specification
EnDat 2.2 digital
U
2
12 V
DC
(unregulated)
I
2max
250 mA
Encoder design
Single-turn and multi-turn
Clock frequency
4 MHz
Max. cable length
100 m, shielded
Tab. 40: EnDat 2.2 digital specification
SSI encoders
Specification
SSI signals
U
2
12 V
DC
(unregulated)
I
2max
250 mA
Encoder design
Single-turn and multi-turn
Clock frequency
250 kHz and 600 kHz
Sampling rate
250 µs
Monoflop time
≤ 30 µs
Code
Binary or gray
Format
13, 24 or 25 bits
Transfer
Double or single
Max. cable length
100 m, shielded
Tab. 41: SSI specification
