
3
GFK-2734
Chapter 3 VersaPoint potential and data routing, and VersaPoint connectors
3-3
DC distribution network according to IEC 61326-3-1:
A DC distribution network is a DC power supply network, which supplies a complete
industrial hall with DC voltage and to which any device can be connected. A typical system
or machine distribution is not a DC distribution network. For devices that are provided for
a typical system or machine distribution, the DC connections are viewed and tested as I/O
signals according to IEC 61326-3-1.
3.4
Supply voltage U
S
The safety module interrupts the potential routing of the VersaPoint station for the segment
circuit (see also Section "Internal basic circuit diagram" on page 3-6).
There are two options for inserting additional VersaPoint terminals after the safety module:
1.
Use of the safety-related segment circuit.
For general information, please refer to Section "Safety-related segment circuit" on
page 2-6; for connection examples, please refer to Section "Safety-related segment
circuit" on page 6-17.
2.
Use of the segment circuit.
In order to use the interrupted segment circuit, the segment voltage must be supplied
again. The following options are available:
NOTE: Damage to module electronics in the event of surge voltage
Do not use a DC distribution network.
–
Insert a jumper between terminal points 3.1 (U
M
) and 4.1 (U
S
).
or
–
Insert a segment or power terminal after the safety module.
When using the safety-related segment circuit, observe the notes in Section "Safety-
related segment circuit" on page 6-17.