SMC Networks PF3W504, Operation Manual

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No.PF
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-OMW0004-A
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Wiring
Wiring of connector
Connections should only be made with the power supply turned off.
Use separate routes for the Flow switch wiring and any power or high voltage wiring. Otherwise, malfunction
may result due to noise.
Ensure that the FG terminal is connected to ground when using a commercially available switch-mode
power supply. When a switch-mode power supply is connected to the product, switching noise will be
superimposed and the product specification can no longer be met. This can be prevented by inserting a
noise filter, such as a line noise filter and ferrite core, between the switch-mode power supply and the
product, or by using a series power supply instead of a switch-mode power supply.
Integrated display type (PF3W7)/Remote type sensor (PF3W5)
Pin No Integrated display type (PF3W7) Remote type sensor (PF3W5) Lead wire colour
1 DC(+) DC(+) Brown
2 OUT2 N.C./temp. analogue output White
3 DC(-) DC(-) Blue
4 OUT1 Flow rate analogue output Black
When PF3W7 (IO-Link) is used

SIO mode setting
Pin No Name Lead wire colour Function
1 DC(+) Brown 12 to 24 VDC
2 N.C./OUT2 White Not connected/Switch output 2 (SIO)
3 DC(-) Blue 0 V
4 OUT1 Black Switch output 1

IO-Link mode setting
Pin No Name Lead wire colour Function
1 L+ Brown 18 to 30 VDC
2 N.C./OUT2 White Not connected/Switch output 2 (SIO)
3 L- Blue 0 V
4 C/Q Black Communication data (IO-Link)/Switch output 1 (SIO)

: When using the lead wire with M8 connector included with the PF3W7 series.
Tighten the connector by hand.