+24V*
CDM420-0006
PNP sensor
4
V
S
GND
Out
GND
S6
ON
OFF
S6 : SGND-GND
V
S ext
Shield
A
Sensor
B
37 SGND
6 Shield
39 +24 V*
Trigger sensor
1
3
2
+24V*
CDM420-0006
GND
S6
ON
OFF
S6 : SGND-GND
Shield
A
Sensor
B
37 SGND
6 Shield
39 +24 V*
1
V
S ext
GND
A
37
2
2
Figure 43: Left: Trigger sensor connected potential-free and supplied with power externally. Right: alternative switch,
!
supplied with power by connection module CDM420-0006 or
"
connected volt-free and supplied with power externally. Now
select switch setting S6 as shown in the left figure.
1
Trigger sensor, e.g. for read cycle generation
2
External supply voltage V
S
ext
3
Supply voltage V
S
4
PNP sensor
Table 22: Assignment of placeholders to the digital inputs
CDM420-0006
Device
Terminal A
Signal B
Pin C
Pin D
Sensor E
38
Sensor 1
14
10
1
28
Sensor 2
4
15
2
Function of switch S6
Table 23: Switch S6: SGND - GND
Switch setting
Function
ON
GND of the trigger sensor is connected with GND of CDM420-0006 and
GND of the device
OFF
Trigger sensor is connected volt-free at CDM420-0006 and the device.
Common, isolated reference potential of all digital inputs is SGND.
Characteristic data of the digital inputs
Table 24: Characteristic data of the digital inputs “Sensor 1” and “Sensor 2”
Type
Switching
Switching behavior
Power to the input starts the assigned function, e.g. start read cycle.
Default setting in the device: logic not inverted (active high), debounce
time 10 ms
Properties
•
Opto-decoupled, reverse polarity protected
•
Can be wired with PNP output of a trigger sensor
Electrical values
Low: V
in
1)
≤ 2 V; I
in
2)
≤ 0.3 mA
High: 6 V ≤ V
in
≤ 27.6 V; 0.7 mA ≤ I
in
≤ 5 mA
1)
Input Voltage
2)
Input current
ANNEX
13
8024830/1FGB/2022-03-29 | SICK
O P E R A T I N G I N S T R U C T I O N S | Lector61x
77
Subject to change without notice
