Electrical connection
4.1 Wiring
The pin assignment depends on the chosen configuration of the device.
Pin assignments:
M12x1
Wire the connecting cable according to your device version and the pin assignments
shown on the type plate.
Supply voltage:
+U
VVX
1
B
2
GND
3
4
5
4.1.1 VVX with frequency output
Flow
Push-Pull *
1
1
VVX
2
3
GND
4
*2
5
*1: Not at 5 V.
*2: Do not wire the push-pull switch outputs of multiple VVX devices in parallel.
*3: Recommended pull-up / pull-down resistance R
4.1.2 VVX with temperature (optional)
NTC / Pt 1000
1
VVX
2
R
Temp
3
4
ϑ
5
R
Temp
- 28 -
Possible pin assignments:
Pin 1: +U
B
Pin 2: U
• I
Flow
Flow
Pin 3: GND
Pin 4: Frequency • Alarm
Pin 5: U
• R
Temp
Temp
NPN Open Collector
1
VVX
2
3
R
2
4
R
1
5
R1 ≤ 47 Ω / R2 ≥ 10 kΩ
• R
Temp
PNP Open Collector
+U (≤+U
)
B
GND
*3
R
L
~5 kΩ.
L
NTC / Pt 1000 (only VVX15 / VVX20 / VVX25)
1
VVX
2
3
GND
4
ϑ
5
R
Temp
If Pin 2 has been assigned by another function.
© SIKA • Ba_VVX • 09/2021
1
VVX
2
GND
3
*3
R
L
4
5
VVX