Handling Precautions P4 - SMC Networks ITV23 Series Operation Manual

Handling precautions
△
Caution
！
If the power supply to this product is turned off due
to a power failure during normal operation, the
output on the secondary side will be held and air
will flow continuously.
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.
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.
Take the following steps to avoid malfunction
due to noise.
1. Install a line filter etc. to the AC power line to
reduce / eliminate power supply noise.
2. Avoid malfunction due to noise by installing
this product and it's wiring away from strong
electric fields, such as those of motors and
power cables, etc.
3. Be sure to implement protective measures
against load surge for inductive loads
(solenoid valves, relays etc.).
4. Turn off the power supply before inserting or
removing the connector.
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