X20(c)SC2212
10
Data sheet V1.141 X20(c)SC2212 Translation of the original documentation
7 Connection examples
The typical connection examples in this section only represent a selection of the different wiring methods. The user
must take error detection into account in each case.
Information:
For details about connection examples (such as circuit examples, compatibility class, max. number of
supported channels, terminal assignments, etc.), see chapter Connection examples of the "Integrated
safety technology" user's manual (MASAFETY-ENG).
7.1 Module behavior when GND connection is lost
In this section and all of its subsections, the term "connection element" is to be understood as follows for the
respective system (X20, X67):
•
X20: e.g. terminal block
•
X67: e.g. M12, M8
A loss of GND on the module may cause current to flow from the module via the output or the GND connection
of the connection element.
If power supplies, actuators or GND connections are grounded, the user must ensure that no grounding wires or
any associated potential short circuits or open circuits will cause any additional impermissible GND connections.
The two currents I
OUT
and I
GND
are module-specific and must be taken from the technical data.
Type B output
Protection
A
A
24 V
GND
1
Logic
SELV
IOUT
IGND
SOx
GND
Figure 2: Module behavior when GND connection is lost
Danger!
The user is responsible for preventing any safety problems that could occur as a result of the I
OUT
and
I
GND
currents specified in the technical data and the selected method of installation.