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(3)
Do not use in an environment with oil or chemicals.
Please consult with SMC if auto switches will be used in an environment with coolant, cleaning solvent, various
oils or chemicals. If auto switches are used under these conditions for even a short time, they may be adversely
affected by improper insulation, malfunction due to swelling of the potting resin, or hardening of the lead wires.
(4)
Do not use in an environment with temperature cycles.
Please consult with SMC if switches are used where there are temperature cycles other than normal
temperature changes, as there may be adverse effects inside the auto switches.
(5)
Do not use in an environment where there is excessive impact shock.
<Reed>
When excessive impact (300m/s
2
or more) is applied to a reed auto switch during operation, the contacts may
malfunction and generate or cut off a signal momentarily (1ms or less). Please consult with SMC if a solid
state auto switch can be used according to the environment.
(6)
Do not use in an area where surges are generated.
<Solid state>
When there are units (solenoid lifter, high frequency induction furnace, motor, radio equipment etc.) which
generate a large amount of surge in the area around the rotary actuator with solid state auto switches, this
may cause deterioration or damage to the auto switch’s internal circuit elements. Avoid sources of surge
generation and crossed lines.
(7)
Avoid accumulation of iron debris or close contact with magnetic substances.
When a large amount of iron debris such as machining chips or spatter is accumulated, or a magnetic substance
(something attracted by a magnet) is brought into close proximity with a rotary actuator with auto switches, or
a rotary actuator, it may cause the auto switch to malfunction due to a loss of the magnetic force inside the
rotary actuator.
(8)
Please contact SMC concerning water resistance, elasticity of lead wires, usage at welding sites, etc.
(9)
Do not use in direct sunlight.
(10) Do not mount the product in locations where it is exposed to radiant heat.
Maintenance
(1) Removal of equipment, and supply/exhaust of compressed air.
Before any machinery or equipment is removed, first ensure that the appropriate measures are in place to
prevent the fall or erratic movement of driven objects and equipment, then cut off the electric power and reduce
the pressure in the system to zero. Only then should you proceed with the removal of any machinery and
equipment.
When machinery is restarted, proceed with caution after confirming that appropriate measures are in place to
prevent actuators from moving suddenly.
(1)
Perform the following maintenance periodically in order to prevent possible danger due to unexpected
auto switch malfunction.
1) Secure and tighten auto switch mounting screws.
If screws become loose or the mounting, position is dislocated, retighten them after readjusting the mounting
position.
2) Confirm that there is no damage to lead wires.
To prevent faulty insulation, replace auto switches or repair lead wires, etc., if damage is discovered.
3) Confirm the lighting of the green light on the 2-color indicator type auto switch.
Confirm that the green LED is on when stopped at the established position. If the red LED is on, the mounting
position is not appropriate. Readjust the mounting position until the green LED lights up.
Warning
Caution