Thumbwheel Switch
A7PS/A7PH
Refer to
Warranty and Application Considerations
(page 1) and
Safety
Precautions
(page 3).
Dust-tight, Easy-to-Use, Push-operated
Switches with Large Display Characters
• Simple push mechanism and large, easy-to-view numeric
display make setting easy.
• Dust penetration prevented with seal for the display windows.
Model Number Structure
■
Model Number Legend
A7P@-2@@-@
1
2
3
1. Basic Model
S:
Snap-in (front mounting)
H:
Snap-in (front mounting, long-life type)
2. Output Code Number
03:
Decimal code output
06:
Binary coded decimal output
07:
06 with component-adding provision
19:
Double-sided PCB version of 06 with component-adding provision
54:
Binary coded hexadecimal code
55:
54 with component-adding provision (See note.)
3. Unit Color
None: Light gray
1:
Black
Note:
Output code number, 55, can be used for A7PS only.
38
Thumbwheel Switch
A7PS/A7PH
Ordering Information
■
List of Models
Push-Operated Switches
Model
Classification
(See note 1.)
A7PS
Snap-in (front mounting)
A7PH
Snap-in (front mounting)
Long-life type
Terminals
Color
Output code number
03 (decimal code)
06 (binary coded decimal)
07 (binary coded decimal, with component-adding
provision) (See note 6.)
19 (decimal code, with component-adding provision)
54 (binary coded hexadecimal)
55 (binary coded hexadecimal, with component
adding provision) (See note 6.)
Light gray
Model
A7PS-203
A7PS-206
A7PS-207
A7PS-219
A7PS-254
A7PS-255
A7PS-203-1
A7PS-206-1
A7PS-207-1
A7PS-219-1
A7PS-254-1
A7PS-255-1
Solder terminals (See note 5.)
Black
Light gray
Model
A7PH-203
A7PH-206
A7PH-207
A7PH-219
A7PH-254
---
A7PH-203-1
A7PH-206-1
A7PH-207-1
A7PH-219-1
A7PH-254-1
---
Black
Note: 1.
The classification diagrams show 4 Switch Units combined with End Caps to create 4-digit displays.
2.
The model numbers given above are for 1 Switch Unit.
3.
Models with stoppers are also available. Add “-S@@” after the “203,” “206,” “207,” “219,” “254,” or “255” in the model number and specify
the display range in the
@@.
For example, to specify the range 0 to 6, add “-S06” to the model number (e.g., A7PS-206-S06-1).
4.
Models with +,
−
displays can also be produced. Add “-PM” after the “206” in the model number (e.g., A7PS-206-PM or A7PS-206-PM-1).
5.
Models with PCB terminals are available.
6.
Models with diodes are available. Add “-D” to the model number (e.g., A7PS-207-D or A7PS-207-D-1).
Accessories (Order Separately)
Use accessories, such as End Caps and Spacers, with the Switch Units.
Accessory
End Caps
Spacer
Connectors
Solder terminals
PCB terminals
Color
Light gray
A7P-M (See note 2.)
A7P-P@ (See notes 1 and 2.)
NRT-C
NRT-CP
Black
A7P-M-1 (See note 2.)
A7P-P@-1 (See notes 1 and 2.)
Note: 1.
The
@
in the Spacer model number stands for a letter in the range A to U. (Refer to the table in the following explanation about Spacers.)
2.
The minimum ordering unit is 10.
End Caps
End Caps are used on the Switch Units at each end and allow all the
Switch Units to be securely mounted to a panel. They come in pairs,
one for the left and one for the right.
Spacers
Spacers are used for creating extra space or gaps between the
Switch Units and have the same dimensions as the Switch Units
themselves.
There are also Spacers with engraved characters or symbols that
can be used for indicating units, such as time and length. (Refer to
the following table.) Consult your OMRON representative for details.
Symbol
Stamp
Symbol
Stamp
A
B
C
D
H
L
PCS
E
g
Q
x 10
SEC
F
kg
T
0
G
mm
U
•
No
SEC MIN
designation
H
cm
J
m
K
°
C
Thumbwheel Switch
A7PS/A7PH
39
■
Ordering Procedure
Place orders as shown in the example below, specifying the model and number.
7
1.
2.
3.
4.
5.
6.
A7P-M (End Caps): 1 set
A7PS-203 (Switch Unit): 1 piece
A7PS-206 (Switch Unit): 1 piece
A7P-PA (Spacer): 1 piece
A7PS-207 (Switch Unit): 1 piece
A7PS-219 (Switch Unit): 1 piece
Note:
Standard products are not factory-assembled for shipment.
Contact your OMRON representative for details on ordering
factory-assembled sets.
7.
NRT-C (Connector): 4 pieces
1
2
3
4
5
6
1
Specifications
■
Characteristics
Item
Switching capacity (resistive load)
Continuous carry current
Contact resistance
Insulation
resistance
Dielectric
strength
A7PS
50 VAC or 5 to 28 VDC
1 mA to 0.1 A
1 A max.
200 m
Ω
max.
100 M
Ω
min. (at 500 VDC)
A7PH
125 VAC or 5 to 28 VDC
10
µ
A to 0.15 A
3 A max.
Between non-connected terminals
10 M
Ω
min. (at 500 VDC)
Between terminal and non-current
1,000 M
Ω
min. (at 500 VDC)
carrying part
Between non-connected terminals
600 VAC, 50/60 Hz for 1 min
Between terminal and non-current
1,000 VAC, 50/60 Hz for 1 min
carrying part
Vibration resistance
Shock resistance
Durability
Mechanical
Electrical
Ambient temperature
Ambient humidity
Max. operating force
10 to 55 Hz, 1.5-mm double amplitude for 2 hours min.
490 m/s
2
min.
100,000 operations min.
50,000 operations min.
Operating: –10
°
C to 65
°
C
Operating: 45% to 85%
6.37 N max.
2,000,000 operations min.
1,000,000 operations min.
40
Thumbwheel Switch
A7PS/A7PH
■
Output Codes/Terminals
Switches with output codes 06 or 07 both use binary coded decimal
but Switches with output code 07 have a component-adding
provision. Similarly, Switches with output codes 54 or 55 both use
binary coded hexadecimal but Switches with output code 55 have a
component-adding provision.
Output Codes 03 and 19
Model
Switch
Common
Unit or
terminal
Connector number
Switch Unit
03, 19
Dial
Connector
0
1
2
3
4
5
6
7
8
9
Note:
The solid dot • indicates that the internal switch is ON
(i.e., connected to the common terminal).
C
6
0
1
●
●
●
●
●
●
●
●
●
●
Terminals connected to common
1
2
2
3
3
4
4
5
5
7
6
8
7
8
9
9 10 11
How to Read Output Codes
Example for Output Code 06
For example, when the dial position is “3,” the common terminal C on
the Switch is connected to terminals 1 and 2. When the Switch is
inserted into the Connector, the common terminal C becomes
connector terminal 3, and terminals 1 and 2 become connector
terminals 5 and 7 respectively.
Output code
number
03
Terminals
Twenty-two,
1.1-dia. holes
Output Codes 06 and 07
Model
Switch Unit
or Connector
Switch Unit
06
07
Connector
Connector
0
1
2
3
4
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
19
Forty-four, 1-dia. holes
Common
terminal
number
C
3
1, 3
(See note 1.)
Terminals connected to
common
1
5
2
7
4
9
8
11
Component-adding provision
Dial
06
Ten, 1.1-dia.
holes
5
6
7
8
9
07
Twenty-three,
1.1-dia. holes
Component-adding provision
54
Note: 1.
Terminal 3 is the common terminal for the component-
adding provision.
2.
The solid dot • indicates that the internal switch is ON
(i.e., connected to the common terminal).
Ten, 1.1-dia.
holes
55
Twenty-three,
1.1-dia. holes
Component-adding provision
Thumbwheel Switch
A7PS/A7PH
41
Output Codes 54 and 55
Model
Switch Unit or
Connector
Switch Unit
54
55
Dial
Connector
Connector
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
Common
terminal
number
C
3
1, 3
(See note 2.)
Terminals connected to
common
1
5
2
7
4
9
8
11
Note: 1.
The solid dot • indicates that the internal switch is ON (i.e., connected to the common terminal).
2.
Terminal 3 is the common terminal for the component-adding provision.
Dimensions
Note:
All units are in millimeters unless otherwise indicated.
■
Push-operated Switches
A7PS-2@@(-1)
A7PH-2@@(-1)
Solder Terminals
(See note)
Number of A (n x 10 + 12) B (n x 10 + 9)
Switches (n)
1
2
3
4
5
6
22 mm
32 mm
42 mm
52 mm
62 mm
72 mm
82 mm
92 mm
102 mm
112 mm
19 mm
29 mm
39 mm
49 mm
59 mm
69 mm
79 mm
89 mm
99 mm
109 mm
Solder terminal
Panel thickness: 1 to 3
7
8
9
10
Panel Cutout
Note: 1.
2.
The dimensions above include both
End Caps, and will increase 10 mm
for each Spacer inserted.
Unless otherwise specified, a
tolerance of
±
0.4 mm applies to all
dimensions.
The tolerance for multiple
connection is
±
(number of units x
0.4) mm.
Note:
If the output code is 03, 06 or 54, the dimension is 43; if the
output code is 07, 19 or 55, the dimension is 55.
42
Thumbwheel Switch
A7PS/A7PH
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