26 Device Description
WAGO I/O System 750 XTR
750-471/040-000 4AI U/I Diff Galv XTR
Manual
Version 1.0.2
Table 7: Legend for Figure “Display Elements“
Channel Designation LED State Function
4
Status AI 4
D
Green Operational readiness and trouble-free
local bus communication
Off
No operational readiness or the local
bus communication is interrupted or
channel deactivated
Error AI 4
H
Red
Overrange/underrange of the
admissible measuring range, overload
*)
or wire break
**)
Off No error or diagnosis/channel
deactivated
*)
Applies only for the modes “0 … 20 mA“, “4 … 20 mA“, “±20 mA“ and “3.6 … 21 mA NE43“
**)
Applies only for the modes “4 … 20 mA“ and “3.6 … 21 mA NE43“