User manual

6 Detailed descriptions of I/O modules | Analogue input module UR20-4AI-UI-16-DIAG
243Manual u-remote1432790000/08/12.2015
4AI·UI·16·D
Module status LED
Green: Communication over the system bus
Red: Collective error diagnostic
1.1 Red: channel error
1.3 Red: +24V short circuit or line break (with current < 1mA)
2.1 Red: channel error
2.3 Red: +24V short circuit or line break (with current < 1mA)
3.1 Red: channel error
3.3 Red: +24V short circuit or line break (with current < 1mA)
4.1 Red: channel error
4.3 Red: +24V short circuit or line break (with current < 1mA)
LEDindicatorsUR20-4AI-UI-16-DIAG,errormessagesseeChapter13
AI 0
•
•
AI 3
AI 1
GND
24VDC
FE
AI 0
GND
24VDC
FE
AI 2
GND
24VDC
FE
AI 3
GND
24VDC
FE
System
bus
U
SYS
U
IN
U
OUT
UR20-4AI-UI-16-DIAG
µC µC MUX
1
2
3
4
24VDC IN
GND IN
FE
1
2
3
4
1
2
3
4
1
2
3
4
A
D
J
J
J
J
Block diagram UR20-4AI-UI-16-DIAG