System Description
Kendrion Kuhnke Automation GmbH
22
In special cases you may attach the earth wire straight to the module.
Information
Earth wires should be short and have a large surface (copper mesh). Refer to
http://de.wikipedia.org/wiki/ground_(electronics)
for further details
Bus Coupler
The system power supply connects to the bus coupler through a 2-pole plug-type terminal block with a
bolt flange. Since the bus coupler supplies power to both the E-bus and the logic circuits of the I/O
modules, its power consumption depends on the number of I/O modules connected.
Power to the I/O module outputs is supplied separately.
Spring-assisted plug with bolt flange for bus coupler connection
I/O Modules
The I/O supply connects to the I/O module using plug-type terminal blocks with different numbers of
poles.
The bus coupler supplies power to the logic circuits of I/O modules without their own micro-controller.
Modules equipped with a micro-controller may feature a power supply unit that power is supplied to
through the IO connector.
Module earth connection options
A
t
t
a
c
h
c
a
b
l
e
s
h
i
e
l
d
h
e
r
e
C
o
n
n
e
c
t
t
h
e
D
I
N
r
a
i
l
t
o
f
u
n
c
t
i
o
n
a
l
e
a
r
t
h
M
3
x
5
b
o
l
t
c
o
n
n
e
c
t
i
o
n
A
t
t
a
c
h
c
a
b
l
e
s
h
i
e
l
d
h
e
r
e
M
3
x
5
b
o
l
t
c
o
n
n
e
c
t
i
o
n
C
o
n
n
e
c
t
D
I
N
r
a
i
l
w
i
t
h
o
p
e
r
a
t
i
v
e
e
a
r
t
h
