ß
Supply voltage V
S
+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 86: Left: Trigger sensor connected potential-free and supplied with power externally. Right: Alternatively switch,
!
sup‐
plied with power by connection module CDM420-0006 or
"
connected potential-free and supplied with power externally.
Switch setting S6 then as in left figure.
1
Trigger sensor, e.g. for read cycle generation
2
External supply voltage V
S ext
(V
S ext
= U
V ext
)
3
PNP sensor
4
Supply voltage V
S
Table 77: Assignment of placeholders to digital switching inputs
CDM420-0006 Device
Terminal A Signal B Pin C Pin D Sensor E
38 Sensor 1 14 10 1
39 Sensor 2 4 15 2
Function of switch S6
Table 78: Switch S6: SGND - GND
Switch setting Function
ON GND of the trigger sensor connected with GND of CDM420-0006 and
GND of the device
OFF Trigger sensor connected potential-free at CDM420-0006 and device.
Common, isolated reference potential of all digital switching inputs is
SGND.
Characteristic data of digital switching inputs
Table 79: Characteristic data of the digital switching inputs “Sensor 1” and “Sensor 2”
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
14 ANNEX
140
O P E R A T I N G I N S T R U C T I O N S | RFU62x 8015930/ZTM0/2018-11-06 | SICK
Subject to change without notice