4 Installation and Wiring
4 - 32
NX-series Position Interface Units User’s Manual (W524)
• Place the diode for absorbing surge or surge absorber next to the relay. Use a diode for
absorbing surge that can withstand at least 5 times the circuit voltage.
• Noise on the power supply line may affect operation if you also use the same power supply to
power an electrical welder or electric discharge machine, or if there is any source of high-fre-
quency noise nearby. In this case, insert a noise filter into the power supply input section.
• Ground to 100 Ω or less and use as thick a wire as possible, larger than 1.25 mm
2
.
• We recommend twisted-pair cables for power lines.
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