8 •
750-478 [2 AI DC 0-10 V, Single-Ended]
Display Elements
WAGO-I/O-SYSTEM
750
I/O
Modules
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 analog input module 750-478 can be used with all couplers/controllers of
the WAGO-I/O-SYSTEM 750 (except for the economy types 750-320, -323,
-324 and -327).
2.1.1.3 Display
Elements
LED
Channel Meaning State Function
off
No operational readiness or the
internal data bus communication is
interrupted
A
green
Function
AI 1
on
Operational readiness and trouble-
free internal data bus
communication
off Normal
operation
B
red
1
Error
AI 1
on
Overrange/underflow of the
admissible measuring range
off
No operational readiness or the
internal data bus communication is
interrupted
C
green
Function
AI 2
on
Operational readiness and trouble-
free internal data bus
communication
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
AI 2
on
Overrange/underflow of the
admissible measuring range
