Siemens SINAMICS S120 - X231 and X232 Encoder System Interface

Hardware
6.2 Interfaces
Hydraulic Drive
System Manual, 04/2015, 6SL3097-4BA00-0BP1
205
6.2.3
X231 and X232 encoder system interface
The HLA module evaluates one TTL or one SSI encoder for each axis. As TTL encoder and
SSI encoder are connected to the same interface, TTL and SSI encoders cannot be
simultaneously operated on one axis. Further, it is not possible to connect encoders with TTL
track signals and in addition SSI signals. Operation without encoder is not permitted.
The use of TTL and SSI encoders influences the current carrying capacity of the DRIVE-
CLiQ interfaces.
Note
Maximum cable lengths
The maximum permissible cable length is 40 m.
Connecting TTL encoders
For TTL encoders, the encoder power supply is designed for 5 V / 350 mA with remote
sense. It can be switched over between a fixed voltage (approx. 5.25 V) and remote sense
operation (up to max. 8 V at the module).
Table 6- 4 X231/X232: Connecting TTL encoders
Pin
Signal name
Function
1
PENCn
Encoder power supply, +5 V
2
M
Electronics ground
3
1)
APn
TTL track signal, track A
4
2)
ANn
Inverse TTL track signal, track A
5
1)
SSIDATn
--
6
BPn
TTL track signal, track B
7
BNn
Inverse TTL track signal, track B
8
2)
XSSIDATn
9 PSENSEn Sense line encoder power supply for TTL en-
coders
10
RPn
TTL track signal zero pulse
11 MSENSEn Sense line encoder power supply for TTL en-
coders
12
RNn
Inverse TTL track signal zero pulse
13
P24
--
14 SSICLKn --
15
XSSICLKn
--
Connector type:
15-pin SUB D connector
1)
Pin 3 jumpered with pin 5
2)
Pin 4 jumpered with pin 8