A22Z-R datasheet(12/52 Pages) OMRON

12 / 52 page

A22NE-PD

Safety Precautions

Be sure to read the precautions

for All PushButton Switches in the website at: http://www.ia.omron.com/.

Indication and Meaning for Safe Use

Do not perform wiring with power supplied to the Switch/

Indicator. Do not touch the terminals or other charged

parts while power is being supplied. Doing so may result

in electric shock.

• Make sure the Operation Unit and the Switch Unit are properly

assembled.

(1) Assembling the Operation Unit and Switch Unit

Align the TOP indication (the mark

) on the Operation Unit

with the TOP indication on the Switch Unit, and insert the

Operation Unit while keeping the bottom A pressed.

(2) Locking the lock lever

With a screwdriver inserted in the lock hole of the lock lever,

bring the screwdriver in contact with the convex part of the case,

and turn the lock lever until a clicking sound is heard.

• When transition wiring is performed, make sure the switching

current inside the Switch and the current based on the transition

wiring is below the rated current of the Switch.

If a current value higher than the rated current flows, it could result

in emission of heat, or damage and deformation of the Switch,

which could cause fire and locking of the contact, and thus a loss

of safety.

• Do not disassemble or modify the Switch/Indicator under any

circumstances.

• Doing so may prevent the Switch/Indicator from functioning to its

full capability. Do not drop the Switch/Indicator. Do not apply

pressure that may deform or alter the Switch/Indicator.

• The durability of the Switch varies considerably depending on the

switching conditions. Always test the Switch/Indicator under actual

working conditions before application and use the Switch/Indicator

only for the number of switching operations allowed.

• Do not allow the load voltage and current to exceed the rated

value. This may damage or burn out the Switch/Indicator.

• Do not use the Switch/Indicator in locations where explosive or

flammable gases or liquid may be present or scattered. The

electric ark or the heat caused by switching contacts may cause a

fire or explosion.

• Do not use the Switch/Indicator in locations where toxic gases,

such as H2S, SO2, NH3, HNO3, and Cl2, may be present, or in

locations subject to high temperature or humidity. Doing so may

damage the Switch/Indicator due to contact failure or corrosion.

• Do not use the Switch/Indicator submersed in oil or water, or in

locations continuously subject to splashes of oil or water. Doing so

may result in oil or water entering and damaging the Switch/

Indicator.

• Do not use or keep the Switch/Indicator under the following

conditions:

• Subject to severe temperature changes.

• Subject to high humidity or condensation.

• Subject to severe vibration or shock.

• Where direct rays of the sun strike.

• Where sea breeze may be present.

• Make sure that a rubber washer is present between the Operation

Unit and the panel. In models with IP69K, make sure the rubber

bush of the Operation Unit is properly attached.

Otherwise, the specifications of the protective structure may not be

satisfied.

• Do not apply excessive force to the Switch or wirings. Damage or

deformation of the Switch Unit could result in an improper contact

or a loss of safety.

• Use an appropriate wiring and crimp terminals (hereinafter, called

ferrule terminals).

• Exercise caution to avoid wiring errors when connecting the

terminals.

• To prevent wiring materials from smoking or ignition, confirm wire

ratings and use the wiring materials given in the following table.

Use wiring crimp terminals and ferrule terminals of the specified

size.

Warning

Indicates a potentially hazardous

situation that, if not avoided, could

result in serious injury or death.

Additionally there may be significant

property damage.

Precautions for

Safe Use

Comments on what to do or avoid doing, to

use the product safely.

Precautions for

Correct Use

Supplementary comments on what to do or

avoid doing to use the product safely and

prevent its malfunctioning or an adverse

effect on its performance or functions.

WARNING

Precautions for Safe Use

Mark

(1)

(2)

(1)

(2)

Operation Unit

Switch Unit

TOP indication

Locked position

Release position

Lock Hole of Lock Lever

Convex Part

Bottom A

When the lock lever is at the released position in

this Switch, the NO and NC contact operation is

reversed.

Set the lock lever to the locked position when us-

ing the Switch.

Wire Type

Wire

material

Recommended

Wire

Wire coating peeling

amount

Solid wire/

Stranded

Wire

Copper

0.25 to 1.5 mm2

AWG 24 to 16

Ferrules used: 10 to 12 mm

(Varies depending on the

recommended ferrule

conductor length)

Ferrules not used: 8 mm

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