![background image](http://html1.mh-extra.com/html/smc-networks/msua1/msua1_operation-manual_1299838018.webp)
6. Do not use in an area where surges are generated.
<Solid state>
If there is an equipment unit (electromagnetic lifter, high-frequency induction furnace, motor, or radio,
etc.) that generates large surges or electromagnetic waves around cylinders with solid state auto
switches or actuators, this may cause the circuit element inside the auto switch to break.
7. Avoid accumulation of iron waste or close contact with magnetic substances.
If many iron particles, such as cutting chips or spatters accumulate around a cylinder with the auto
switches or an actuator or if a magnetic substance (attracted by a magnet) is put close to a cylinder with
the auto switch or an actuator, the magnetic force inside the cylinder or actuator loses, causing the auto
switch to malfunction.
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.
11. Take appropriate measures against the lightning surge on the equipment side as the auto
switches do not have any lightning surge resistance specified in the CE marking.
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 rotary tables from moving suddenly.
2. Do not touch a terminal during energizing.
Touching a terminal during energizing may cause electric shock, malfunction, or auto switch breakage.
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 detection setting position.
・
Red light of 1-color display auto switch
Confirm that the set position stops at the center of the operating range (red display area).
・
Conform the green light and position of the 2-color display auto switch.
Conform that the set position stops at the center of the appropriate operating range (green display
area). If stopped with the red LED lit, the operation may become unstable due to effects of the
equipment environment or external disturbance. So, set the mounting position at the center of the
appropriate operating range again.
2. Do not use solvents such as benzene, thinner etc. to clean the product.
They could damage the surface of the body and erase the markings on the body. For heavy stains, use a
cloth lightly dampened with diluted neutral detergent, then wipe up any residue with a dry cloth.
- 17 -
Warning
Caution
2020-10-13 11:15
DI987004