X20 system modules • Counter modules • X20DC1396
X20 system User's Manual 3.10
749
4.11.10.4 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
Green
Input state of counter input A
B1
Green
Input state of counter input B
R1
Green
Input state of reference pulse R
1
Green
Input state - Digital input
1)
Depending on the configuration, a firmware update can take up to several minutes.
4.11.10.5 Pinout
Shielded cables must be used for all signal lines.
A1
1
X
20
D
C
1
39
6
B1
R1
A
B
R
DI 1
Encoder 24 V +
GND
r
e
4.11.10.6 Connection example
GND
+24 VDC
GND
+24 VDC
DC
A
B
R
C
ou
nt
er
1
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