SMC Networks PF3W7 Series, Operation Manual

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No.PF
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-OMM0005-N
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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.
Pin No. Description Wire colour
1 DC(+) Brown
2 OUT2 White
3 DC(-) Blue
4 OUT1 Black

: When using the lead wire with M8 connector included with the PF3W7 series.
Tighten the connector by hand.