+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 64: 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 55: 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 56: 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 57: 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
Electrical values
Low: V
in
≤ 2 V; I
in
≤ 0.3 mA
High: 6 V ≤ V
in
≤ 30 V; 0.7 mA ≤ I
in
≤ 5 mA
ANNEX
14
8014335/ZTL9/2018-10-14 | SICK
O P E R A T I N G I N S T R U C T I O N S | RFU63x, RFU65x
123
Subject to change without notice
