Siemens S120 - X23 HTL;TTL;SSI Encoder Interface

Control Units, Control Unit Adapters and operating components
7.3 Control Unit CU310-2 PN (PROFINET)
AC Drive
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
265
7.3.2.3
X23 HTL/TTL/SSI encoder interface
Table 7- 3 X23 HTL/TTL/SSI encoder interface
Pin
Signal name
Technical data
1
+Temp
KTY or PTC input
2
SSI_CLK
SSI clock, positive
3
SSI_XCLK
SSI clock, negative
4
P encoder 5 V / 24 V
Encoder power supply
5
P encoder 5 V / 24 V
6
P_Sense
Sense input, encoder power supply
7
GND
Ground, encoder power supply
8
M (-Temp)
Ground for KTY or PTC
9
M_Sense
Ground sense input
10
RP
R track positive
11
RN
R track negative
12
BN
B track negative
13
BP
B track positive
14
AN_SSI_XDAT
A track negative / SSI data negative
15
AP_SSI_DAT
A track positive / SSI data positive
Connector type
15-pin Sub-D socket
Measuring current via temperature sensor connection: 2 mA
NOTICE
Risk of motor overheating for incorrectly connected KTY temperature sensor
A KTY temperature sensor connected with incorrect polarity cannot detect if the motor
overheats.
• Make sure that you connect the KTY temperature sensor with the correct polarity.
Note
There are two ways of con
necting the temperature sensor:
1.
via X120, terminals 1 and 2
2.
via X23, pins 1 and 8