Siemens SIMATIC TI505 - Wiring the Inputs; Figure 2-4 Non-Inverted Input Drive; Figure 2-5 Inverted Input Drive

Installing the Module
2-7
High Speed Counter Encoder Module User Manual
Input connections to the module can be electronic output drive devices or
mechanical switches.
Figure 2-4 shows an example of wiring electronic encoder outputs to the
input terminals of the module for a non-inverted signal.
V
A+
A–
Input
Encoder
Module
OCI
Constant
current
load
Input
OCI
On
Figure 2-4 Non-Inverted Input Drive
Figure 2-5 shows an example of wiring electronic encoder outputs to the
input terminals of the module for an inverted signal.
V
A+
A–
Input
Encoder
Module
OCI
Constant
current
load
Input
OCI
On
Ic
R=V–4V
13mA
(
Ic rating must allow for this current)
Figure 2-5 Inverted Input Drive
W iring the Inputs