4
Module
EDBC250SBC |1.1
l
l
l
l
19
4
Module
4.1
Safety bus coupler
The Safety bus coupler Converts the physical transfer technology (twisted
pair) to LVDS (E-bus) and gene rates the system Voltages required by the
LVDS modules. The standard 100 Base Tx lines used for office
communications network connect to the one side, the Lenze Safety modules
for the process signals connect to the other. This is how the Ethernet
EtherCAT protocol is retained right through to the load I / O modules. At the
end of the modular device, the connection between the forward and return
lines is automatically closed, the effect being did another 100 Base Tx line can
be plugged in to connect the next EtherCAT unit to the second bus coupler
port.
You will get the best results concerning disturbing emission, if you put the
shielding of the EtherCAT cable on the function earth.
Figure 7: Bus coupler front view
4.1.1
Terminals
Module Power Supply
L+
24 V DC
L-
0 V
EtherCAT
IN
RJ45-Buchse
input (from previous EtherCAT station)
OUT
RJ45-Buchse
output (to next EtherCAT station)
NOTE
The following notes must be observed during configuration
The Safety bus coupler is always DC-Synchron.
It is not recommended to use the Safety Bus Coupler as DC-Master
Exception: There is no other DC-Master in the system, then the Safety bus
coupler must be used as a DC-Master.
