This notice is wholly designed to explain the FX3U sink/source
input wiring variation to users of the exclusive sink input type
model.
FX3U external input wiring can be either sink method or source
method. (Please refer to the following diagram.)
It is absolutely necessary to wire the S/S terminal.
For more details, Please refer to the "FX3U SERIES
PROGRAMMABLE CONTROLLERS HARDWARE MANUAL"
included with the FX3U.
• Input wiring example for AC power type