SMC Networks D-M9 J Series Operation Manual page 7

Wiring
•Do not pull hard on the lead wire. In particular, never lift an Auto switch actuator by holding the lead
wires.
Otherwise damage to the internal parts can result, causing malfunction.
•Avoid repeatedly bending or stretching the lead wire, or placing heavy load on them.
Repetitive bending stress or tensile stress can cause the sheath of the wire to peel off, or breakage of the wire.
If the lead wire can move, fix it near the body of the product.
•Wire correctly.
Incorrect wiring can break the product.
•Do not perform wiring while the power is on.
Otherwise damage to the internal parts can result, causing malfunction.
•Do not route wires and cables together with power or high voltage cables.
Otherwise the product can malfunction due to interference of noise and surge voltage from power and high voltage
cables to the signal line. Route the wires (piping) of the product separately from power or high voltage cables.
•Confirm proper insulation of wiring.
Poor insulation (interference from another circuit, poor insulation between terminals, etc.) can lead to excess
voltage or current being applied to the product, causing damage.
•Design the system to prevent reverse current when the product is forced to operate for operational
check.
Depending on the circuit used, insulation may not be maintained when operation is forced, allowing reverse current
to flow, which can cause malfunction and damage the product.
•Keep wiring as short as possible to prevent interference from electromagnetic noise and surge voltage.
Do not use a cable longer than 100 m.
•Do not cut the lead wire between the sensor and amplifier.
It may malfunction after connecting it again.
Environment
•Pay attention to use the product in an atmosphere with accumulation of iron waste or close contact with
magnetic substances.
When a large amount of iron waste such as machining chips or spatter has accumulated, or a magnetic substance
(something attracted by a magnet) is brought into close proximity with the actuator, it may cause the Auto switch to
malfunction due to weakening.
•Do not use the product in an environment that is constantly exposed to the splash of water.
This can cause insulation failure or malfunction due to swelling of the potting resin.
•Do not use in a place where the product could be splashed by oil or chemicals.
If the product is to be used in an environment containing oils or chemicals such as coolant or cleaning solvent,
even for a short time, it may be adversely affected. (insulation failure, malfunction due to swelling of the potting
resin, or hardening of the potting resin, or hardening of the lead wires)
•Do not use the product in an environment where corrosive gases or fluids could be splashed.
Otherwise damage to the product and malfunction can result.
•Do not use in an area where surges are generated.
If there is equipment which generates a large amount of surge (solenoid type lifter, high frequency induction
furnace, motor, etc.) close to the actuator, this may cause deterioration or breakage of the internal circuit of the
Auto switch. Avoid sources of surge generation and crossed lines.
•Do not use a load which generates surge voltage.
When a surge-generating load such as a relay or solenoid is driven directly, use an Auto switch with a built-in surge
absorbing element.
•The product is CE marked, but not immune to lightning strikes. Take measures against lightning strikes
in the system.
•Mount the product in a place that is not exposed to vibration or impact.
Otherwise failure or malfunction can result.
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No.D-※S-OMS0002-B