Siemens SINAMICS Series Operating Instructions Manual page 214

Additional system components
7.3 Sensor Module Cabinet-Mounted SMC30
7.3.3.5 X521/X531 alternative encoder system interface
Table 7- 16
Connector
Max. connectable cross-section: 1.5 mm
Measuring current via the temperature sensor connection: 2 mA
When unipolar HTL encoders are used, A*, B*, and R* on the terminal block must be jumpered with
M_Encoder (X531)
Because the physical transmission properties are more robust, the bipolar connection should
1)
always be used. The unipolar connection should only be used if the encoder type does not output
push-pull signals.
Electric shock due to unconnected cable shields
Hazardous touch voltages can occur through capacitive cross-coupling due to unconnected
cable shields.
• Attach the cable shield to the component via terminals for the encoder system
212
X521/X531 alternative encoder system interface
Terminal
X521 1
2
3
4
5
6
7
8
1
X531
2
3
4
5
6
7
8
.
1)
WARNING
connection.
Designation
A
A*
B
B*
R
R*
CTRL
M
P_encoder 5 V/24 V
M_Encoder
- Temp
+ Temp
Clock
Clock*
Data
Data*
2
Technical specifications
Incremental signal A
Inverse incremental signal A
Incremental signal B
Inverse incremental signal B
Reference signal R
Inverse reference signal R
Control signal
Ground
Encoder supply
Ground, encoder supply
Temperature sensor KTY84-1C130
Temperature sensor KTY84-1C130
SSI clock
Inverse SSI clock
SSI data
Inverse SSI data
SINAMICS DCM DC Converter
Operating Instructions, 12/2018, A5E34763375A