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 49: 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 50: 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 51: 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 10ms
Properties
•
Opto-decoupled, reverse polarity protected
•
Can be wired with PNP output of a trigger sensor
Electrical values Low: V
in
1)
≤2V; I
in
2)
≤0.3mA
High: 6V ≤V
in
≤30V; 0.7mA ≤I
in
≤5mA
1)
Input Voltage
2)
Input current
14.6.8 Wiring the external digital inputs of the device in the CDM420-0006
Device = RFU630-131xx, RFU630-041xx
14 ANNEX
120
O P E R A T I N G I N S T R U C T I O N S | RFU63x 8027750//2022-12-15 | SICK
Subject to change without notice