Siemens SINAMICS S120 System Manual page 206

Hardware
6.2 Interfaces
Connecting SSI encoders
For SSI encoders, the encoder power supply is designed for 24 V / 350 mA. The supply is
switched on or switched off in the software (the encoder is parameterized in Starter). The
output is short-circuit proof, and is directly supplied from the module with 24 V. When a
short-circuit occurs, a diagnostic signal is not output.
Table 6- 5
Connector type:
Pin 3 jumpered with pin 5
1)
Pin 4 jumpered with pin 8
2)
206
X231/X232: Connecting SSI encoders
Pin Signal name
1 PENCn
2 M
3 APn
1)
4 ANn
2)
5 SSIDATn
1)
6 BPn
7 BNn
8 XSSIDATn
2)
9 PSENSEn
10 RPn
11 MSENSEn
12 RNn
13 P24
14 SSICLKn
15 XSSICLKn
15-pin SUB D connector
Function
--
--
--
--
SSI data signal
--
--
Inverse SSI data signal
--
--
--
--
Encoder power supply +24 V
SSI cycle
Inverse SSI cycle
System Manual, 04/2015, 6SL3097-4BA00-0BP1
Hydraulic Drive