8 •
750-425 [2 DI DC 24 V 3.0 ms NAMUR]
Display Elements
WAGO-I/O-SYSTEM
750
I/O
Modules
An optocoupler is used for electrical isolation between the bus and the field
side.
Any configuration of the input modules is possible when designing the
fieldbus node. Grouping of module types is not necessary.
The field side supply voltage of 24V for the input module is derived from
adjacent I/O modules or from a supply module
.
The supply voltage for the
field side is made automatically through the individual I/O modules by means
of power jumper contacts.
Warning
The maximum current of the internal power jumper contacts is 10 A. When
configuring the system it is important not to exceed the maximum/sum
current. However, if such a case should occur, another supply module must be
added.
The digital input module 750-425 can be used with all couplers/controllers of
the WAGO-I/O-SYSTEM 750.
2.1.1.3 Display
Elements
LED
Channel Designation
State
Function
off
Input DI 1: Signal voltage (0)
A
green
Status
DI 1
on
Input DI 1: Signal voltage (1)
off Normal
operation
B
red
1
Error
DI 1
on
Short circuit (against
ground)
or broken wire
off
Input DI 2: Signal voltage (0)
C
green
Status
DI 2
on
Input DI 2: Signal voltage (1)
off Normal
operation
13 14
C
D
B
A
D
C
B
A
Fig. 2.1.1-2: Display
Elements
g041802x
D
red
2
Error
DI 2
on
Short circuit (against
ground)
or broken wire
