Complete Assemblies
A22/M22
Specifications Common to All
The Following Pages Provide Information Common
To Each Model of The A22/M22 Pushbutton Switch
H
H
H
H
A22
A22S/W
A22K
M22
Specifications
J APPROVED STANDARDS
Recognized organization
Standards
File No.
UL, cUL (See note)
UL508
E41515
ASTA
EN60947-5-1
—
Note: UL: CSA C22 No. 14
J RATINGS
Contacts (General-purpose Load)
Rated current (A)
Rated carryy
current
Rated
voltage
l
AC15 (inductive load)
AC12 (resistive load)
DC13 (inductive load)
DC12 (resistive load)
10 amps
p
24 VAC
10
10
—
—
110 VAC
5
10
220 VAC
3
6
380 VAC
2
3
440 VAC
1
2
24 VDC
—
—
Utilization category
1.5
10
110 VDC
0.5
2
220 VDC
0.2
0.6
380 VDC
0.1
0.2
Note: 1. Rated current values are determined according to the testing conditions specified by JIS C4520. The above ratings were
obtained by conducting tests under the following conditions as specified by JIS C4505.
(1) Ambient temperature: 20°±2°C
(2) Ambient humidity: 65±5%
(3) Operating frequency: 20 operations/min
2. Minimum applied load: 10 mA, 5 VDC
Contacts (Microload)
Rated applied load
Minimum applied load
50 mA, 5 VDC (Resistive load)
1 mA, 5 VDC
LED Indicators without Transformer
Rated voltage
Rated current
Operating voltage
6 VDC
60 mA
6 VDC±5%
6 VAC
60 mA
6 VAC/DC±5%
12 VAC/DC
30 mA
12 VAC/DC±5%
24 VAC/DC
15 mA
24 VAC/DC±5%
30
All A22/M22 Assemblies
All A22/M22 Assemblies
Incandescent Lamp
Rated voltage
Rated current
Operating voltage
6 VDC
200 mA
5V
14 VAC/DC
80 mA
12 V
28 VAC/DC
40 mA
24 V
130 VAC/DC
20 mA
100 V
Rated voltage
Operational voltage
Applicable lamp (BA8S/13j gold)
110 VAC
95 to 115 VAC
j)
LED Lamp
a p (A22-24Aj)
(
220 VAC
190 to 230 VAC
Transformer Lighting
J CHARACTERISTICS
Item
Allowable
operating
f
frequency
Pushbutton switches
Emergency stop switches
Knob-type selector switches
Key-type
selector
switch
Non-illuminated
models:
A22-F, A22-T,
A22-G,
A22-S, A22-C,
A22-D,
A22-H, A22-M
Non-illuminated
models: A22E
Non-illuminated
models: A22S
Non-illuminated
models: A22K
Illuminated
models:
A22L-T,
A22L-G,
A22L-H,
A22L-D,
A22L-C
Mechanical
Momentary operation:
60 operations/min max.
Electrical
30 operations/min max.
Illuminated
models:
A22EL
30 operations/min max.
Illuminated
models:
A22W
Manual release: 30 operations/min max.
Automatic release: 30 operations/min max.
30 operations/min max.
Insulation resistance
100 MΩ min. (at 500 VDC)
Dielectric strength
2,500 VAC, 50/60 Hz for 1 min between terminals of same polarity
2,500 VAC, 50/60 Hz for 1 min between terminals of different polarity and also between each terminal and
ground
Vibration resistance
(See note 2)
Malfunction: 10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms)
Shock
resistance
Mechanical
1,000 m/s2
{100G}
1,000 m/s2
{100G}
1,000 m/s2 {100G}
1,000 m/s2
{100G}
1,000 m/s2
{100G}
1,000 m/s2
{100G}
Malfunction
(See note 2)
1,000 m/s2
{100G} max.
600 m/s2
{60G} max.
250 m/s2 {25G} max.
1,000 m/s2
{100G} max.
600 m/s2
{60G} max.
1,000 m/s2
{100G} max.
Mechanical
Momentary operation:
5,000,000 operations min.
Momentary operation:
300,000 operations min.
500,000
operations
min.
100,000
operations
min.
500,000
operations
min.
Electrical
500,000 operations min.
300,000
operations
min.
300,000
operations
min.
500,000
operations
min.
100,000
operations
min.
500,000
operations
min.
Ambient temperature
(See note 1 )
Operating:
-20°C to 70°C
(-4°F to
158°F)
Storage:
-40°C to 70°C
(-40°F to
158°F)
Operating:
-20°C to 70°C
(-4°F to
158°F)
Storage:
-40°C to 70°C
(-40°F to
158°F)
Operating:
-20°C to
55°C (-4°F
to 131°F)
Storage:
-40°C to
70°C (-40°F
to 158°F)
Operating:
-20°C to 70°C
(-4°F to
158°F)
Storage:
-40°C to 70°C
(-40°F to
158°F)
Operating:
-20°C to
55°C (-4°F
to 131°F)
Storage:
-40°C to
70°C (-40°F
to 158°F)
Operating:
-20°C to 70°C
(-4°F to
158°F)
Storage:
-40°C to 70°C
(-40°F to
158°F)
Ambient humidity
Operating: 35% to 85%
Degree of protection
IP65
Electric shock protection
class
Class II
Degree of contamination
3 (IEC947-5-1)
Life
expectancy
Operating:
-20°C to
55°C
(-4°F to
131°F)
Storage:
-40°C to
70°C (-40°F
to 158°F)
Note: 1. With no icing or condensation.
2. Malfunction within 1 ms.
31
All A22/M22 Assemblies
All A22/M22 Assemblies
J OPERATING CHARACTERISTICS (FOR SPST-NO/SPST-NC)
Item
Total travel force
(TTF) max.
Pushbutton
switches
Emergency stop
switches
Knob-type selector switch
Key-type selector switch
Illuminated
Non-illuminated
Pushbutton
Switches
Push-lock
turn-reset
system
Manual release
Automatic
release
Manual release
A22-F, A22-G,
A22-C, A22-S,
A22-T, A22-H,
A22-D, A22-M,
A22L-T, A22L-H,
A22L-D, A22L-G,
A22L-C
A22E
A22S, A22W
A22S, A22W
A22K
29.4 N {3.0 kgf}
44.1 N {4.5 kgf}
0.34 N S m
{3.5 kgf S cm}
(See note)
0.25 N S m
{2.5 kgf S cm} for
two position
(See note)
0.34 N {3.5 gf}
(See note)
0.34 N S m
{3.5 kgf S cm} for
three position
Total travel
(TT)
5.5 mm max.
10±1 mm
Approx. 90° for two position
(Approx. 45° for three position)
Releasing force
(RF) min.
—
0.25 N S m max.
{2.5 kgf S cm}
(See note)
0.34 N S m max.
{3.5 kgf S cm}
(See note)
—
Automatic
release
0.25 N S m
{2.5 kgf S cm} for
three position
(See note)
0.34 N S m
{3.5 kgf S cm} for
three position
Approx. 90° for two position
0.34 N S m max.
{3.5 kgf S cm}
(See note)
—
Note: Rotation torque for Emergency Stop Pushbutton, Knob-type Selector, and Key-type Selector Switches.
Accessories (Order Separately)
Item
Appearance
Contact Blocks
Classification
SPST-NO
General-purpose load
Microload
SPST-NC
DPST-NO
DPST-NC
Remarks
Part number
Provided as standard. Order
Contact Blocks only when
adding
ddi or replacing
l i them.
h
A22-10
A22-01
Microload
A22-01S
General-purpose load
A22-20
Microload
A22-20S
General-purpose load
A22-02
Microload
Lamp
p Sockets
Direct lighting
Transformer
ill i ti
illumination
A22-10S
General-purpose load
110 VAC
A22-02S
Used when changing
g g the lightg
i method.
ing
th d
220 VAC
A22-TN
A22-T1
A22-T2
Mounting Latches
For momentary models
Provided as standard. Order
Mounting Latches only when
mounting Contact Blocks or
Lamp Sockets that are purchased individually.
A22-3200
Legend
g
plate
l
frames
With Snap-in
p
L
Legend
d Plate
Pl
(Without text)
Snap-in
p Legend
g
Plate is acrylic.
y
A22Z-3321
Standard
size
i
Large
g
size
i
White
Red
A22Z-3322
Black
A22Z-3323
Without Snap-in Legend Plate
A22Z-3320
With Snap-in
p
L
Legend
d Plate
Pl
(Without text)
White
A22Z-3331
Red
A22Z-3332
Black
A22Z-3333
Without Snap-in Legend Plate
(This table continues on the next page.)
32
A22Z-3330
All A22/M22 Assemblies
All A22/M22 Assemblies
(continued from previous page)
Classification
Remarks
Lock fitting
Appearance
Round
A22Z-3360
The body is equipped with a
Lock Fitting. This Lock Fitting is
used when a more secure lock
feature is required.
Metallic bezel rings
For flush or projection models
Replace with the standard
model.
Material: nickel-plated zinc
A22Z-3580
Used to prevent dust or water
from entering the Operational
Unit.
Color: opaque
Material: silicon
A22Z-3600F
Item
For full-guard models
Sealing caps
For flush models
For extended models
For full-guard models
Color lenses
Part number
A22Z-3582
A22Z-3600T
A22Z-3600G
Yellow
Used for changing
g g the Operap
A22Z-30TR
tional
i
l Unit
U i color
l off the
h PushbutP hb
A22Z-30TG
ton Switch.
Switch
A22Z-30TY
White
A22Z-30TW
Red
Green
Blue
A22Z-30TA
Three-throw spacers
For Pushbutton Switches
Used when mounting three NonIlluminated Switch Units.
Cannot be used with Illuminated
Emergency Stop Switches.
A22Z-3003
Hole plug
Round
Can be plugged into pre-cut
panel holes for future expansion. The color is black.
A22Z-3550
25 mm-dia. ring
25 mm ring
Can be fit into a 25 mm-dia.
hole in the panel. Since this is
not attached to the main body,
order separately.
A22Z-R25
Snap-in
p
l
legend
d
plates
Without text
Attached to the Standard-size
L
Legend
d Plate
Pl
Frame.
F
A22Z-3443B
Material: Acrylic
A22Z-3443W
Standard
size
i
Black
Red
White
Transparent
A22Z-3443C
White text on
red backback
ground
f
A22Z-3443R-2
STOP
A22Z-3443R-4
White text on
bl k backblack
b k
ground
|
A22Z-3443B-1
START
A22Z-3443B-3
ON
A22Z-3443B-5
OFF
A22Z-3443B-6
UP
A22Z-3443B-7
DOWN
A22Z-3443B-8
POWER ON
A22Z-3443B-9
OFF-ON
Large
g
size
i
Without text
Black
Red
White
Transparent
For
Emerg
gencyy
St
Stop
Switch
A22Z-3443R
60-dia. round plate with black
letters on a yellow background
90-dia. round plate with black
letters on a yellow background
(This table continues on the next page.)
33
A22Z-3443B-10
Attached to the Large-size
g
Legg A22Z-3453B
end
d Plate
Pl
Frame
F
A22Z-3453R
Material: Acrylic
A22Z-3453W
A22Z-3453C
“EMERGENCY STOP” is
A22Z-3466-1
engraved on the plate. Used as
g
y Stop
p Switch
an Emergency
L
Legend
d Plate.
Pl t
A22Z-3476-1
All A22/M22 Assemblies
All A22/M22 Assemblies
(continued from previous page)
Item
Appearance
Character films
Classification
Remarks
Part number
No print (Round)
After printing
p
g on a film,, affix to
the
h indicator
i di
plate
l
off the
h IllumiIll i
nated Pushbutton Switch.
Switch (The
back is coated with adhesive.)
A22Z-3460
Character
print
i (R
(Round)
d)
|
f
A22Z-3460-1
A22Z-3460-2
START
A22Z-3460-3
STOP
A22Z-3460-4
No print (Square)
A22Z-3480
Lamp extractor
—
Rubber tool used to easily
replace Lamps.
A22Z-3901
Tightening wrench
—
Tool used to tighten nuts from
the back of the panel.
A22Z-3905
Lens tightening tool
—
Used for replacing the cap of
the Half-guard Pushbutton
Switch.
A22Z-3908
Lens puller
—
Used for removing the lens
from the indicator of the
Square Illuminated Pushbutton
Switch.
A3PJ-5080
J ENCLOSURES
Material
Hole size
Number of holes
Part number
Polyester
y
22.5 mm (0.88
(
in))
1
A22N-PENC-1
2
A22N-PENC-2
3
A22N-PENC-3
1
A22N-MENC-1
2
A22N-MENC-2
3
A22N-MENC-3
4
A22N-MENC-4
6
A22N-MENC-6
9
A22N-MENC-9
12
A22N-MENC-12
16
A22N-MENC-16
Metallic
22.5 mm (0.88
(
in))
Note: For more information on pushbutton enclosures refer to drawings in the Dimensions section.
34
All A22/M22 Assemblies
All A22/M22 Assemblies
J NAMEPLATE NOMENCLATURE
1
2
3
A22N-jjj
Code Material
Code Shape
P
Plastic
X
Shield
M
Metal
R
Rectangular
S
Square
A22N-PRj
A22N-PSj
Note: To complete the part number of the standard nameplates, select the plate type and
add the number from the table below.
Example: Plastic Square Nameplate engraved “Reset” A22N-PS38
A22N-PXj
A22N-MRj
A22N-PE
1
AUTO
30
ON
106
HIGH-LOW
150
AUTO-MANOFF
175
START-JOG-STOP
2
CLOSE
31
OPEN
107
INCH-REVERSE
151
AUTO-OFF-HAND
176
START-RUN-STOP
3
CYCLE START
32
OUT
108
JOG-FOR
152
AUTO-OFF-MAN
177
UP-OFF-DOWN
4
CYCLE STOP
33
POWER ON
109
JOG-REV
153
CLOSE-OFF-OPEN
178
1-OFF-2
5
DECREASE
34
PULL TO START
110
JOG-RUN
154
DOWN-OFF-SLOW
179
HAND-OFF-AUTO
6
DOWN
35
PUSH TO TEST
111
LEFT-RUN
155
FAST-OFF-SLOW
180
7
EMERG.STOP (red)
36
PUSH TO STOP
112
LOWER-RAISE
156
FOR-OFF-REV
181
8
FAST
37
RAISE
113
MAN-AUTO
157
FOR-STOP-REV
182
9
FAULT
38
RESET
114
OFF-ON
158
HIGH-LOW-OFF
183
10
FEED
39
REVERSE
115
ON-OFF
159
HIGH-OFF-LOW
184
11
FEED START
40
RIGHT
116
OPEN-CLOSE
160
JOG-SAFE-RUN
185
12
FEED STOP
41
RUN
117
RAISE-LOWER
161
JOG-STOP-RUN
186
13
FLUID LEVEL LOW
42
SLOW
118
REV-FOR
162
LEFT-OFF-RIGHT
187
I-II-III
14
FORWARD
43
SPEED
119
RUN-INCH
163
LOC-OFF-REMOTE
188
III
15
FULL SPEED
44
START
120
RUN-JOG
164
LOW-OFF-HIGH
190
60 MM E-STOP
16
HAND
45
STOP
121
RUN-SAFE
165
LOWEROFF-RAISE
191
90 MM E-STOP
17
HIGH
46
TEST
122
SAFE-RUN
166
OFF COOLANT ON
200
BLANK
NAMEPLATE
18
IN
47
UP
123
SLOW-FAST
167
OFF-LOC-REMOTE
200E
SPECIAL
ENGRAVING
19
INCH
48
1ST SPEED
124
START-JOG
168
OFF-MAN-AUTO
20
INCREASE
49
2ND SPEED
125
START-STOP
169
OFF-SLOW-FAST
21
JOG
50
3RD SPEED
126
STOP-START
170
OFF-1-2
22
JOG FORWARD
51
4TH SPEED
127
SUMMER-WINTER
171
OPEN-OFF-CLOSE
23
LEFT
100
AUTO-MAN
128
UP-DOWN
172
RAISE-OFFLOWER
24
LOW
101
CLOSE-OPEN
173
SLOW-OFF-FAST
25
LOW SPEED
102
DOWN-UP
174
SLOW-OFF-START
26
LOWER
103
FAST-SLOW
27
MOTOR RUN
104
FOR-REV
28
MOTOR STOP
105
HAND-AUTO
29
OFF
Note: All plastic name plates are adhesive backed, contain beveled edges and are supplied standard with white lettering on black background. Any deviation from items listed here will be a special order. Contact Omron.
35
All A22/M22 Assemblies
All A22/M22 Assemblies
Dimensions
Unit: mm (inch)
J LEGEND PLATE FRAMES
A22Z-332j
40.8
(1.61)
50.8
(2.00)
20.5
(1.81)
29.8
(1.17)
27
(1.06)
A22Z-333j
27
(1.06)
20.5
(1.81)
22.2 dia.
29.8
(1.17)
J PLASTIC RECTANGULAR AND SHIELD
A22N-PRj
A22N-PXj
29.8 (1.17)
6.4 (0.25)
11.4 (0.45)
29.9 (1.18)
44.8 (1.76)
φ22.3 (0.88)
Note: Curved dashed line denotes difference between Rectangular and Rectangular to Round name plates.
J PLASTIC SQUARE
A22N-PSj
44.8 (1.76)
6.4 (0.25)
11.4 (0.45)
29.9 (1.18)
44.8 (1.76)
φ22.3 (0.88)
36
22.2 dia.
28 dia.
28 dia.
All A22/M22 Assemblies
All A22/M22 Assemblies
J METAL RECTANGULAR
A22N-MRj
29.8 (1.17)
6.4 (0.25)
11.4 (0.45)
29.9 (1.18)
44.8 (1.76)
φ22.4 (φ0.88)
2 x 25.0 (0.98)
4 x 3.2 (0.13)
J 60MM EMERGENCY STOP
A22PE190
φ60.0 (φ2.36)
White
Letters
Red
φ22.3 (φ0.88)
J 90MM EMERGENCY STOP
A22N-PE191
φ90.0 (φ3.54)
White
Letters
Red
φ22.3 (φ0.88)
37
All A22/M22 Assemblies
All A22/M22 Assemblies
J LOCK FITTING
J 25 MM-DIA. RING
A22Z-3360
A22Z-R25
22 dia.
24.8 dia.
27 dia.
22.2 dia.
20.5
(0.81)
30 dia,
(1.18)
2.8
(0.11)
J COLOR LENS
J HOLE PLUG (ROUND)
A22L-30Tj
A22Z-3530
23.4 dia.
(0.92)
10.2
(0.40)
30 dia.
2.5
J SEALING CAPS
For Flush Models
A22Z-3600F
For Extended Head Models
A22Z-3600T
32 dia.
16.6
(0.65)
32 dia.
13
(0.51)
26 dia.
(1.02)
23
(0.91)
22.2 dia.
33 dia.
(1.30)
For Full-guard Models
A22Z-3600G
6
(0.24)
22.2 dia.
33 dia.
(1.30)
31.5 dia.
24
(0.94)
22.2 dia.
32.5 dia.
(1.28)
38
All A22/M22 Assemblies
All A22/M22 Assemblies
J THREE-THROW SPACER
A22Z-3003
13.7 dia.
(0.54)
10.8
(0.43)
12.9 dia.
11
(0.43)
For Flush/Extended Models
A22Z-3580
3.4
(0.13)
14.2 dia.
(0.56)
J METALLIC BEZEL RINGS
For Full-guard Models
A22Z-3582
28.7 dia.
24 dia.
28.7 dia.
24 dia.
11.5
(0.45)
18.5
(0.73)
29.7dia.
(1.17)
J SNAP-IN LEGEND PLATES
29.7dia.
(1.17)
For General-purpose Models
A22L-3443j-j
For Large Models
A22Z-3453j
26.8
(1.06)
26.8
(1.06)
8.2
(0.32)
17.9
(0.70)
J CHARACTER FILM
For Round Models
A22Z-3460-j
17
(0.67)
For Square Models
A22Z-3480
1.2
1.2
17
(0.67)
19.4 dia.
(0.76)
21.5 x 21.5
(0.85 x 0.85)
39
All A22/M22 Assemblies
All A22/M22 Assemblies
Unit: mm (inch)
J LAMP EXTRACTOR
A22Z-3901
55
(2.17)
11 dia.
(0.43)
8 dia.
(0.31)
8.5 dia.
J TIGHTENING WRENCH
25 dia.
30 dia.
(1.18)
21.2 dia.
19.2 dia.
A22Z-3905
90
(3.54)
J LENS TIGHTENING TOOL
A22Z-3908
23.4
(0.92)
5 dia.
20.5
(0.81)
30
(1.18)
J LENS PULLER
20
(0.79)
A3PJ-5080
15
(0.59)
10 (0.39)
50
(1.97)
25
(0.98)
40
All A22/M22 Assemblies
All A22/M22 Assemblies
J ENCLOSURES (POLYESTER)
A22N-PENC-j
Section Y-Y
Top View with
Cover Removed
Section Z-Z
22.5mm Hole
3.37
(0.13)
2.25
(0.09)
1.97
(0.08)
Hole Placement
Overall Dimensions
Inside Dimensions
A
B
C
D
E
F
J
K
L
M
No. of
Holes
Hole
Size
A22N-PENC-1
6.74
3.93
3.88
6.01
3.26
3.63
5.99
3.18
4.88
2.94
1
22.5
A22N-PENC-2
6.74
3.93
3.88
6.01
3.26
3.63
5.99
3.18
4.88
2.94
2
22.5
A22N-PENC-3
8.99
3.93
3.88
8.26
3.26
3.63
8.24
3.18
7.13
2.94
3
22.5
Part No.
41
All A22/M22 Assemblies
All A22/M22 Assemblies
J ENCLOSURES (METALLIC)
A22N-MENC-j
D
F
0.25 Dia
4 Places Typ.
0.56
0.25 Dia
4 Places Typ.
0.88
0.25
TYP
1.88 TYP
(0.07)
L
0.69
0.25
TYP
1.50 TYP
(0.06)
E
Z G
A
0.88
1.38
B
W
C
Body Type MENC-6 through
MENC-16 (hinged)
Side View
Body Type MENC-1 MENC-2,
MENC-3 and MENC-4 (not hinged)
0.25
0.13
0.88
Dia.
0.38
0.88
0.48
0.88
Typical Pushbutton Detail
Hinge Detail
Retractable pin allows door to
be mounted on left or right side
Part No.
Overall Dimensions
L
W
No. of
Holes
A
B
C
D
E
F
G
A22N-MENC-1
1
3.25
2.75
3.50
1.88
3.75
1.71
2.50
4.25
3.06
3.56
2
A22N-MENC-2
2
5.13
2.75
3.50
1.88
5.63
1.71
4.38
6.13
3.06
5.44
3
A22N-MENC-3
3
7.00
2.75
3.50
1.88
7.50
1.71
6.25
8.00
3.06
7.31
3
A22N-MENC-4
4
8.88
2.75
3.50
1.88
9.38
1.71
8.13
9.88
3.06
9.19
4
A22N-MENC-6
6
8.50
5.00
4.25
4.13
9.00
3.96
7.75
9.50
5.31
8.81
5
A22N-MENC-9
9
8.50
6.50
4.25
5.63
9.00
5.46
7.75
9.50
6.81
8.81
6
A22N-MENC-12
12
10.38
6.50
4.25
5.63
10.88
5.46
9.36
11.38
6.81
10.69
6
A22N-MENC-16
16
10.38
8.00
4.25
7.13
10.88
6.96
9.63
11.38
8.31
10.69
7
42
Z
Ship
Wt. lbs.
All A22/M22 Assemblies
All A22/M22 Assemblies
Installation
J MOUNTING THE PANEL
J MOUNTING THE OPERATIONAL UNIT
ON THE PANEL
Panel Hole Dimensions
22 dia.
(0.87)
Insert the Operational Unit from the front surface of the panel,
insert the Lock Fitting and the mounting nut from the terminal
side, then tighten the nut. Before tightening, check that the rubber
washer is present between the Operational Unit and the panel.
25 dia.
(0.98)
3.2
(0.13)
24.1
(0.95)
22.3
(0.88)
22.3
(0.88)
When using a Legend Plate Frame, put one rubber washer each
between the Legend Plate Frame and the panel and between the
Operational Unit and the Legend Plate Frame. (One rubber
washer will be provided when one Legend Plate Frame is
ordered.)
25
(0.98)
Align the Lock Fitting with the groove in the casing, then insert
the Lock Fitting so that its edge is located on the panel side.
For 25 mm-dia. holes, always use 25 mm-dia. Rings. (Since the
cutout dimensions are large, IP65 cannot be guaranteed unless
25-dia. Rings are used.)
Tighten the mounting nut at a torque of 0.98 to 1.96 N • m {10 to
20 kgf • cm}.
When using a Lock Ring, replace with the supplied Lock Fitting,
insert the projecting part into the lock slot, and then tighten the
mounting nut.
If outer surface treatment such as paint is applied to the panel,
the panel dimensions after outer surface treatment must meet the
specified panel dimensions.
J MATRIX INSTALLATION
Hold here
Rubber washer
Mounting nut
1. The following panel hole dimensions apply when Switch Units
and the Standard-size Legend Plate Frame Lock Fitting are
mounted.
A22Z
Panel
Projecting
part
A22N-PR, -MR, -PX
30
(1.18)
30
(1.18)
Lock Fitting
Panel
45
(1.77)
41
(1.61)
When the panel cutout dimension is 25 mm dia., remove the
supplied rubber washer and mount the 25 mm-dia. Ring as
shown below. (Since the A22Z-R25 is not attached to the main
body, order separately.)
Operational Unit
2. The following panel hole dimensions apply when the
Large-size Legend Plate Frame is mounted.
A22N-S
A22Z
30
(1.18)
22.3 dia.
25-dia. Ring (A22Z-R25)
45
(1.77)
22.3 dia.
25 dia.
41
(1.61)
Lock
Fitting
Panel
45
(1.77)
Lock Fitting
25 dia.
22.3 dia.
Mounting nut
Locking should be applied toward the Engraving Plate.
Note: The above dimensions are the smallest-possible mounting
dimensions. However, these dimensions do not apply to
large Pushbutton Switches. For large Pushbutton
Switches, determine the distance between holes, taking
the Operational Unit and Legend Plate Frame into
account.
43
All A22/M22 Assemblies
All A22/M22 Assemblies
Half-guard Indicators
J MOUNTING THE SWITCH ON THE
OPERATIONAL UNIT
Put the tips of the Lens Tightening Tool (A22Z-3908) into the
Color Lens slot and turn the Tool.
Insert the Operational Unit into the Switch Unit, aligning the arrow
mark inscribed on the Operational Unit with the lever on the
Switch Unit, then move the lever in the direction indicated by the
arrow in the following figure.
Operational Unit
J ASSEMBLING THE CAP
Arrow mark
Lighted Pushbutton Switch
Lever
Mount the Color Lens so that the protrusions inside the cap fit
into the grooves in the Operational Unit.
Grooves
Protrusion inside cap
Cap
J REMOVING THE SWITCH
Move the lever in the direction indicated by the arrow in the
following figure, then pull the Operational Unit or the Switch Unit.
Color Lens
Since the lever has a hole with an inside diameter of 6.5 mm, the
lever can be moved in the specified direction by inserting a
screwdriver into the hole and then moving the screwdriver.
Indicator
Mount the Color Lens so that the protrusions inside the
Operational Unit fit into the grooves in the cap.
Screwdriver
Protrusion
Cap
Grooves in the cap
Color Lens
J MOUNTING/REPLACING THE COLOR
LENS
Projection, Full-guard
Grip and rotate the Color Lens with your fingers.
44
All A22/M22 Assemblies
All A22/M22 Assemblies
Square Pushbutton/Indicator
Installing/Replacing on the Switch Unit
Removing the Color Lens:
Insert the protruding tip of the Lens Puller (A3PJ-5080) into the lens
slot, hold the plate spring, and pull them to remove the Color Lens.
Grip the indicator with your fingers, then rotate the indicator while
pressing it against the Switch Unit.
Plate spring
Mounting the Color Lens:
Mount the Color Lens on the flange and firmly push the Color
Lens. When the Color Lens is inserted, check whether it operates
properly. When replacing the Lamp, remove the Color Lens and
diffusion plate with fingers or Lens Puller.
Attach the Character Film properly so that it fits inside the
protruding part of the diffusion plate. Then, match the diffusion
plate to the square flange and insert the Lens.
J CONTROL BOX (ENCLOSURE)
Mounting the Switch
The Standard-size Legend Plate Frame can be mounted. Mount
the Frame as shown in the following diagram. Mount the Switch
in the same way as for an ordinary panel.
Flange
Snap-in Legend Plate
Diffusion plate
Character Film
Color Lens
J EMERGENCY STOP SWITCH
J INSTALLING/REMOVING THE SWITCH
UNIT
Insert the protrusion of the Tightening Wrench (A22Z-3905) into
the Cap slot and then turn to remove the Cap.
Installing the Switch Unit
Hook the small protrusion on the Switch Unit into the groove on the
other side of the lever, then push up the Switch Unit in the direction
indicated by the arrow in the figure below.
Lever
Mounting
Latch
J INSTALLING/REPLACING THE LAMP
Installing from the Panel Surface
Insert the Lamp Extractor (A22Z-3901) into the lamp, then rotate the
Extractor while pressing it.
Protrusion
Switch Unit
45
All A22/M22 Assemblies
All A22/M22 Assemblies
Removing the Switch Unit
J ENGRAVING
Insert a screwdriver between the Mounting Latch and the Switch
Unit, then push down the screwdriver in the direction indicated by
the arrow in the following figure.
Engrave the characters on the surface on the Cap. Make sure
that the characters are aligned parallel to the imaginary line
connecting the two protruding portions to the left and right of the
Cap.
Use either of the following screwdrivers.
Flat-head
screwdriver
The characters must not be engraved deeper than 0.5 mm. Apply
an alcohol-based paint coating, such as melamine, alkyd, or
acrylic resin paint coating, to the engraved characters.
Phillips
screwdriver
Protruding portions on Cap
J AFFIXING CHARACTER FILM
Screwdriver
Hold the Cap, remove the cardboard on the Film, and attach the Film
to the Cap. Make sure that the protruding portions of the Cap engage the cutout portions of the Film and that the characters are
aligned parallel to the imaginary line connecting the two protruding
portions to the left and right of the Cap.
J WIRING
Wiring Round Crimp Terminals
Remove the cardboard.
Loosen the terminal screw from the Switch Unit until it completely
comes off the groove, insert a screwdriver as shown in the following
figure, then push up the washer in the direction indicated by the
arrow to temporarily secure it. Now, a round crimp terminal can be
connected. After inserting the terminal, tighten the screws to complete wiring.
Protruding portions on Cap
J MOUNTING AND DISMOUNTING
SNAP-IN LEGEND
Washer
Press and secure the Snap-in Legend Plate onto the Legend
Plate Frame.
Screw
The direction of the characters will vary with the mounting
direction of the control panel if the Switch is a knob or key
selector model.
Screwdriver
Legend Plate Frame
Snap-in Legend Plate
Concave surface
46
All A22/M22 Assemblies
All A22/M22 Assemblies
To easily remove the Snap-in Legend Plate from the Legend
Plate Frame mounted to the panel, insert a Tool with a thin tip
into the space between the Snap-in Legend Plate and the
Legend Plate Frame.
J ENGRAVING METHOD
Material: Acrylic
Engrave the characters directly on the matted side of the Snap-in
Legend Plate.
The characters must be engraved no deeper than 0.5 mm.
Apply alcohol-based paint coating to the engraved characters.
If the Snap-in Legend Plate is transparent, engrave the
mirror-written characters on the back of the Snap-in Legend Plate
and apply paint coating to the characters. Then apply paint
coating of a different color to the remaining part of the Snap-in
Legend Plate.
J MOUNTING THREE-THROW SPACER
Press and secure the two protruding portions of the Three-throw
Spacer to the two indented portions of the inner side of the
control panel.
The Snap-in Legend Plate is easily removed by pressing the
Snap-in Legend Plate from the back of the Legend Plate Frame.
The Legend Plate Frame is made of acrylic resin, which is easily
damaged by shock. Be sure to handle the Legend Plate Frame
with care.
Precautions
! WARNING
Wiring
After wiring the Switch, maintain an appropriate clearance and
creepage distance.
Do not apply a voltage between the incandescent lamp and
the terminal that is greater than the rated voltage. If the incandescent lamp is broken, the Operational Units may pop out.
Always turn OFF the power and wait for 10 minutes before
replacing the incandescent lamp. If the lamp is replaced
immediately after the power is turned OFF, the remaining heat
may cause burns.
When DC-specific LEDs are used, wire the Switch so that the X1
terminal is positive.
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 {11 to 13 kgf • cm}.
J CORRECT USE
Single wires, stranded wires, and crimp terminals can be
connected to the Switch.
Mounting
Operating Environment
Always make sure that the power is turned OFF before mounting,
removing, or wiring the Switch, or performing maintenance.
The IP65 model is designed with a protective structure so that it
will not sustain damage if it is subjected to water from any
direction to the front of the panel.
Do not tighten the mounting ring more than necessary using tools
such as pointed-nose pliers. Doing so will damage the mounting ring.
The tightening torque is 0.98 to 1.96 N • m {10 to 20 kgf • cm}.
The panel thickness is 1 to 5 mm.
47
All A22/M22 Assemblies
All A22/M22 Assemblies
Using the Microload
Others
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 oil-resistant IP65 uses NBR rubber and is resistant to
general cutting oil and cooling oil. Some particular oils cannot be
used with the oil-resistant IP65, however, so contact your
OMRON representative for details.
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).
If the panel is to be finished with coating, etc., make sure that the
panel meets the specified dimensions after the coating.
The equation, λ 60 = 0.5 x 10--4/time indicates that the estimated
malfunction rate is less than 1/2,000,000 with a reliability level of
60%.
Do not subject the Switch to extreme shock or vibration. Doing so
will cause malfunctions and damage to the Switch.
Do not let sharp objects come into contact with the Switches that are
made of resin. Doing so will damage the Switches, causing
scratches on the outside of the Operational Units, and malfunction.
When handling the Switches, do not throw or drop them.
Voltage (V)
Area of use
General-purpose load area
Do not allow the Switch
to drop and hit the
ground.
Microload area
Invalid
area
Current (mA)
LEDs
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:
Do not place or drop
heavy objects on the
Switch.
Base: BA9S/13j
Overall length: 26 mm max.
Power consumption: 2.6 W max.
Do not operate the Switch
with hard or sharp objects.
Hammer
Screwdriver
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
R
OMRON ELECTRONICS LLC
OMRON ON--LINE
OMRON CANADA, INC.
1-800-55-OMRON
Global -- http://www.omron.com
USA -- http://www.omron.com/oei
Canada -- http://www.omron.com/oci
416-286-6465
One East Commerce Drive
Schaumburg, IL 60173
Cat. No. CEDSAX4
11/01
Specifications subject to change without notice.
885 Milner Avenue
Scarborough, Ontario M1B 5V8
Printed in U.S.A.