8 •
750-455(/xxx-xxx) [4 AI 4-20 mA, Single-Ended]
Description
WAGO-I/O-SYSTEM
750
I/O
Modules
2.1.1.3 Description
The analog input module receives signals with standardized values of
4-20 mA.
The module has four input channels. The fieldside signals may be received via
the connections AI 1 and Common (ground) or AI 2, AI 3, AI 4 and Common
(ground). The common (ground) contacts of all four channels have one
common 0 V ground potential.
The input signal of each channel is electrically isolated and will be transmitted
with a resolution of 12 bits.
Broken wire, overrange or underflow of the measuring range is indicated via a
red error LED.
Any configuration of the input modules is possible when designing the
fieldbus node. Grouping of module types is not necessary
The voltage supply is done via system voltage.
The field side supply voltage of 24 V and 0 V for the input module is derived
from adjacent I/O modules or from a supply module
.
The field supply voltage
is passed on separately galvanically to following modules without own use.
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 750-455 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).
