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(4) Do not bind 100VAC and 24VDC wires together with main circuit (high
tension and large current) wires or I/O signal wires nor place them near
each other. Provide 100mm (3.94 inch) clearance between the wires if
possible.
(5) As a measure against surges caused by lightning, insert a lightning surge
absorber as shown below.
POINTS
(1) Provide separate grounding for the lightning surge absorber (E1) and the
PC (E2).
(2) Select a lightning surge absorber whose maximum allowable circuit
voltage is higher than the circuit voltage at the maximum power supply
voltage.
AC
E1
PC I/O
device
E2
← Lightning surge absorber
40

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   Also See for Mitsubishi Electric MELSEC A Series

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