X20 system modules • Counter modules • X20DC2396
X20 system User's Manual 3.10
835
4.11.15.4 LED status indicators
For a description of the various operating modes, see section 2.11.1 "re LEDs".
Figure
LED
Color
Status
Description
Off
No power to module
Single flash
RESET mode
Double flash
BOOT mode (during firmware update)
1)
Blinking
PREOPERATIONAL mode
r
Green
On
RUN mode
Off
No power to module or everything OK
e
Red
On
Error or reset status
A1, A2
Green
Input state of counter input A1 or A2
B1, B2
Green
Input state of counter input B1 or B2
R1, R2
Green
Input state of reference pulse R1 or R2
1 - 2
Green
Input state of the corresponding digital input
1)
Depending on the configuration, a firmware update can take up to several minutes.
4.11.15.5 Pinout
Shielded cables must be used for all signal lines.
A1
1
X
20
D
C
2
39
6
B1
R1
2
A 1
B 1
R 1
A 2
B 2
R 2
DI 1
Encoder 1 24 V+
GND
DI 2
Encoder 2 24 V+
GND
A2
B2
R2
r
e
4.11.15.6 Connection example
GND
+24 VDC
GND
+24 VDC
DC
C
ou
nt
er
1
A1
B1
R1
A2
B2
R2
C
ou
nt
er
2
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