X521 / X531 Alternative Encoder System Interface - Siemens SINAMICS S120 Manual

Encoder system connection
9.6 Sensor Module Cabinet-Mounted SMC30
9.6.2.4

X521 / X531 alternative encoder system interface

Table 9-15 X521/X531: Alternative encoder system interface
Pin
X521 1
2
3
4
5
6
7
8
X531
1
2
3
4
5
6
7
8
Max. connectable cross-section: 1.5 mm
Measuring current via 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)
Accuracy of the temperature measurement (temperature sensor, including evaluation):
1)
- Pt1000: ±5 °C (Pt1000 tolerance class B acc. to DIN EN 60751)
- KTY: ±7 °C
- PTC: ±5 °C
Because the physical transmission media is more robust, the bipolar connection should always be used. The unipolar
2)
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 for the encoder system connection at the
254
Designation
A
A*
B
B*
R
R*
CTRL
M
P_Encoder 5 V / 24 V
M_Encoder
-Temp
1)
+Temp
1)
Clock
Clock*
Data
Data*
(AWG 16)
2
WARNING
terminals.
Technical data
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 power supply
Ground, encoder power supply
Pt1000 / KTY84-130 / PTC temperature sensor
Pt1000 / KTY84-130 / PTC temperature sensor
SSI clock
Inverse SSI clock
SSI data
Inverse SSI data
Control Units and additional system components
Equipment Manual, 06/2020, 6SL3097-5AH00-0BP2
.
2)