Siemens SINAMICS S150 - Page 104

Electrical installation
4.9 Other connections
Drive converter cabinet units
104 Operating Instructions, 07/07, A5E00288214A
X521 / X531: Encoder connection 2 for HTL/TTL/SSI encoder with open-circuit monitoring
Table 4-46 Encoder connection X521
Terminal Signal name Technical specifications
1 A Incremental signal A
2 A* Inverted incremental signal A
3 B Incremental signal B
4 B* Inverted incremental signal B
5 R Reference signal R
6 R* Inverted reference signal R
7 CTRL Control signal
8 M Ground via inductivity
Max. connectable cross-section: 1.5 mm² (AWG 14)
Note
When unipolar HTL encoders are used, A*, B*, and R* on the terminal block must be
jumpered with M_Encoder (X531).
Table 4-47 Encoder connection X531
Terminal Signal name Technical specifications
1 P_Encoder 5 V / 24 V Encoder power supply
2 M_Encoder Ground for encoder power supply
3 -Temp
4 +Temp
Temperature sensor connection KTY84-1C130/PTC
5 SSI_CLK SSI clock
6 SSI_XCLK Inverted SSI clock
7 SSI_DAT SSI data
8 SSI_XDAT Inverted SSI data
Max. connectable cross-section: 1.5 mm² (AWG 14)
Note
Note that when the encoder is connected via terminals, the cable shield must be applied to
the module.
NOTICE
The KTY temperature sensor must be connected with the correct polarity.