Operation
Operating Manual PSSu E F 4DI(-T)(-R),
21310-EN-08
28
7.2
Display elements
Legend
LED on
LED off
7.2.1
Display elements for module diagnostics
The module has an LED for displaying module errors ("Err" LED).
Err
11
I0
21
I1
Err
LED
Meaning
Name
Colour
Status
Err
- - -
No error
Red
Module error
7.2.2
Display elements for input status
Each input is assigned an LED for displaying the input status (LEDs “11”, “21”, “14” and
“24”).
Err
11 21
12 22
13 23
14 24
11
14
21
24
11
14
21
24
LED
Meaning
Designa-
tion
Colour
Status
Signal
Input
Terminal
11
- - -
0 signal
I0
(Input 1)
11
Green
1 signal
21
- - -
0 signal
I1
(Input 2)
14
Green
1 signal
14
- - -
0 signal
I2
(Input 3)
21
Green
1 signal
24
- - -
0 signal
I3
(Input 4)
24
Green
1 signal