SMC Networks ITVH Series Operation Manual page 5

Handling precautions
△
Caution
！
If power to this product is cut off due to a power
failure, etc. when it is in a controlled state, residual
pressure will be retained temporarily. Handle
carefully when operating with output pressure
released to the atmosphere, as air will continue to
flow out.
If supply pressure to this product is interrupted or
shut off, while the power is still on, the internal
solenoid valve will continue to operate and a
humming noise will be generated.
Turn off the power supply when supply pressure is
interrupted or shut off, since the life of the product
may be shortened.
The optional cable connector is a 4 wire type.
When the monitor output (analogue output or switch
output) is not being used, prevent the unused wires
from touching the other wires, as a malfunction
could occur.
This product is adjusted to specification at the time
of shipment from the factory.
Avoid careless disassembly or removal of parts, as
this can lead to malfunction.
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