X20 system modules • Digital input modules • X20DI2653
958
X20 system User's Manual 3.10
4.13.5.4 Status LEDs
For a description of the various operating modes, see section 2.11.1 "re LEDs".
Image
LED
Color
Status
Description
Off
No power to module
Single flash
RESET mode
Blinking
PREOPERATIONAL mode
r
Green
On
RUN mode
Off
Module supply not connected or everything OK
e
Red
Double flash
External supply is too low or not connected
e + r
Red on / Green single flash
Invalid firmware
1 - 2
Green
Input status of the corresponding digital input
4.13.5.5 Pinout
DI 1
L
DI 2
L
1
X
20
D
I 2
65
3
2
N
L
N
N
L
N
r
e
4.13.5.6 Connection example
GND
+24 VDC
GND
+24 VDC
N
N
L
L
DI
Se
ns
or
1
Se
ns
or
2
N
L
N
L
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