Datasheet

A22E
50
A22NE-PD A22NE-P A22E Common Note
Common Accessories and Tools
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.
If the Operation Unit is separated from the Socket Unit, the
equipment will not stop, creating a hazardous condition.
Secure the lever on the Socket Unit by using the
A22Z-3380 Lock Plate so that the Operation Unit cannot
be easily separated from the Socket Unit.
(Refer to “Mounting the Lock Plate” at the below.)
Mounting the Lock Plate
1. Confirm that the lever on the Mounting Latch is on the side where
the Operation Unit is secured and then insert the protrusion on the
Lock Plate into the hole in the lever on the Mounting Latch.
2. Press the hole on the Lock Plate onto the protrusion on the
Mounting Latch until it clicks into place.
Wiring
• Terminal screws must be Phillips or slotted M3.5 screws with a
square washer.
• The tightening torque is 1.08 to 1.27 N·m.
• Single wires, stranded wires, and crimp terminals can be
connected to the Switch.
• Applicable Wiring Materials:
Twisted strands: 2 mm
2
max.
Solid wire: 1.6 mm dia. max.
• After wiring the Switch, maintain an appropriate clearance and
creepage distance.
LED Lamps
• The LED current-limiting resistor is built-in, so internal resistance is
not required.
• If commercially available LEDs are used, select the ones that meet
the following conditions:
Base: BA9S/13
Overall length: 26 mm max.
Power consumption: 2.6 W max.
When DC-specific LEDs are used, wire the Switch so that the X1
terminal is positive.
• Mis-lighting of the LED
The LED lights with approx. 0.1 mA or less of micro-current. Take
a countermeasure like adding a resistor to prevent mis-lighting in
parallel to the LED.
The micro-current varies with the machine (leak current or stray
capacity between cables, etc.). Select resistance value and
allowable power consumption that meet the actual current.
• Do not use a lamp that does not satisfy the rating.
Using the Microload
Contact failure may occur if a Switch designed for a standard load is
used to switch a microload. Use Switches within the application
ranges shown in the following graph. Even within the application
range, insert a contact protection circuit, if necessary, to prevent the
reduction of life expectancy due to extreme wear on the
contacts caused by loads where inrush current occurs when the
contact is opened and closed.
The minimum applicable load is the N-level reference value. This
value indicates the malfunction reference level for the reliability
level of 60% (λ
60) (conforming to JIS C5003).
The equation, λ
60 = 0.5 x 10
−6
/time indicates that the estimated
malfunction rate is less than 1/2,000,000 with a reliability level of 60%.
Be sure to read the "Safety Precautions" on page 56.
Indicates a potentially hazardous
situation that, if not avoided, could
result in serious injury or death.
Additionally there may be significant
property damage.
Indicates a potentially hazardous
situation which, if not avoided, may
result in minor or moderate injury or in
property damage.
Precautions for
Safe Use
Supplementary comments on what to
do or avoid doing, to use the product
safely.
WARNING
Caution
Precautions for Correct Use
Warning
CAUTION
Lever
Operation
Unit
Mounting Latch
Lock Plate
1
2
Naked Crimp Terminals
8 mm max.
16.0 mm max.
8 mm dia. max.
16.0 mm max.
Crimp Terminals with
Insulating Sheaths
20.2 mm max.
8 mm max.
20.2 mm max.
8 mm dia. max.
X1
X2
LED
lamp
R:10kΩ (1W)
Bleeder resistor
(Circuit example)
In case of using 24 VAC/VDC, Direct lighting
Invalid
area
0.1 1 10 100 1,000
10 mA
1 mA
5
12
24
30
0.16 mA
1.6 mA
100 mA
0
Voltage (V)
Microload area
Area of
use
Standard
load area
Current (mA)