X23 Htl/Ttl/Ssi Encoder Interface - Siemens SINAMICS S120 Equipment Manual

Control Units, Control Unit Adapters and operating components
8.3 Control Unit CU310-2 PN (PROFINET)
8.3.2.3

X23 HTL/TTL/SSI encoder interface

Table 8- 4 X23 HTL/TTL/SSI encoder interface
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Connector type 15-pin Sub-D socket
Measuring current via temperature sensor connection: 2 mA
NOTICE
Damage to motor due to incorrectly connected KTY temperature sensor
If a KTY temperature sensor is connected with incorrect polarity, it is not possible to detect
when the motor overheats. Overheating can cause damage to the motor.
• Connect a KTY temperature sensor with the correct polarity.
Note
There are two ways of connecting the temperature sensor:
1. via X120, terminals 1 and 2
2. via X23, pins 1 and 8
Encoders that can be connected
Note
Use of bipolar and unipolar encoders
Use bipolar encoders.
When using unipolar encoders, the unused negative track signals can either be connected or
connected to ground. This results in different switching thresholds.
232
Signal name
+Temp
SSI_CLK
SSI_XCLK
P encoder 5 V / 24 V
P encoder 5 V / 24 V
P_Sense
M
M (-Temp)
M_Sense
RP
RN
BN
BP
AN_SSI_XDAT
AP_SSI_DAT
Technical data
KTY, Pt1000 or PTC input
SSI clock, positive
SSI clock, negative
Encoder power supply
Sense input encoder power supply
Ground, encoder power supply
Ground for KTY, Pt1000 or PTC
Ground sense input
R track positive
R track negative
B track negative
B track positive
A track negative / SSI data negative
A track positive / SSI data positive
Manual, 06/2019, 6SL3097-5AL00-0BP1
AC Drive