40
(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.
AC
E1
E2
←
Lightning surge absorber
PC I/O
device
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.
Summary of Contents for Melsec A Series
Page 90: ...77 MEMO ...
Page 149: ......