A7BS, A7BL Series Datasheet by Omron Electronics Inc-EMC Div

View All Related Products | Download PDF Datasheet
I
CSM_A7BS/A7BL_DS_E_6_2
1
Thumbwheel Switch
A7BS/A7BL
Wide Range of Locking-type
Models Available
• Character height of 4.8 or 3.2 mm makes for easy-to-
view display.
• Installation is easy with snap-in mounting.
• The series includes a complete range of locking-type
models that prevent accidental operation.
Ordering Information
Switches (Single Switch Units)
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 Switch Units.
3. Models with +, - displays can also be produced. Add “-PM” after the “206” or “207” in the model number (e.g., A7BS-206-PM or A7BS-207-PM-1).
*1. For models with PCB terminals, add “-P2” to the model number (e.g., A7BS-
207-P2-1).
*2. Models with internal stoppers are also available. Add “-S@@” after the “206”
or “207” 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.,
A7BS-206-S06-1).
For structural reasons, models with stoppers cannot be manufactured for
the A7BS-254 and A7BS-255.
*3. Models with diodes are available. Add “-D” to the model number (e.g., A7BS-
207-D or A7BS-207-D-1).
Model A7BS A7BS-20@-S
Classification
(See note 1.)
Snap-in (front mounting) Snap-in (front mounting)
Character height Decimal: 4.8 mm Hexadecimal: 3.2 mm 4.8 mm
Terminals Solder terminals *1
Color Light gray Black Light gray Black
Output code number Model
06 (binary coded decimal) A7BS-206 *2 A7BS-206-1 *2 A7BS-206-S A7BS-206-S-1
07 (binary coded decimal, with component
adding provision) *3 A7BS-207 *2 A7BS-207-1 *2 A7BS-207-S A7BS-207-S-1
54 (binary coded hexadecimal) A7BS-254 A7BS-254-1 --- ---
55 (binary coded hexadecimal, with
component-adding provision) *3 A7BS-255 A7BS-255-1 --- ---
With external stoppers
Model A7BL
Classification
(See note 1.)
Snap-in (front mounting)
Character height 4.8 mm
Terminals Solder terminals *1
Color Light gray Black
Output code number Model
06 (binary coded decimal) A7BL-206 *2 A7BL-206-1 *2
07 (binary coded decimal, with component-
adding provision) *3 A7BL-207 *2 A7BL-207-1 *2
Locking type
I
A7BS/A7BL
2
Accessories (Order Separately)
Use accessories, such as End Caps, Spacers, and Connectors with the Switch Units.
End Caps, Spare Units, and Connectors
Note: 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.)
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.
Specifications
Accessory Color Light gray Black
End Caps (1 pair) A7B-M A7B-M-1
Spacer A7B-P@ (See note.) A7B-P@-1 (See note.)
Connectors Solder terminals A7B-C
PCB terminals A7B-CP
Symbol
A B C D E F G
Stamp
No des-
ignation
SEC MIN H g kg mm
Symbol
H J K L Q T U
Stamp cm m °CPCS
x 10
SEC
0•
Switching capacity (resistive load) 3.3 to 28 VDC or 50 VAC
1 mA to 0.1 A
Continuous carry current 1 A max.
Contact resistance 300 mΩ max.
Insulation
resistance
Between non-connected
terminals 10 MΩ min. (at 500 VDC)
Between terminal and
non-current carrying part 1,000 MΩ min. (at 500 VDC)
Dielectric
strength
Between non-connected
terminals 600 VAC, 50/60 Hz for 1 min
Between terminal and
non-current carrying part 1,000 VAC, 50/60 Hz for 1 min
Vibration resistance 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance 490 m/s2 min.
Durability Mechanical 100,000 operations min.
Electrical 50,000 operations min.
Ambient temperature Operating: -10°C to 65°C (with no icing)
Storage: -20°C to 80°C
Ambient humidity Operating: 45% to 85%
Max. operating force 5.39 N max.
EEH I
3
A7BS/A7BL
Dimensions (Unit: mm)
Switches
P=8±0.2
6.9 0.8
B
3
3.8
8±0.1
24 16 2.6 2220.6
24.5
5.5
2.8
A
22.4+0.4
0
C+0.3
0
* If the output code is 06 or 54, the dimension is 32.5;
if the output code is 07 or 55, the dimension is 43.5.
*
Panel thickness: 1 to 3
Solder terminal
A7BS-2@@(-1)
Solder Terminals
Note: 1. The dimensions above include both End
Caps, and will increase 8 mm for each
Spacer inserted.
2. 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.
Number of
Switches
(n)
Size A
(n x 8 + 8)
Size B
(n x 8 + 6) Size C
1
2
3
4
5
6
7
8
9
10
16
24
32
40
48
56
64
72
80
88
14
22
30
38
46
54
62
70
78
86
14.4
22.4
30.4
38.4
46.8
54.8
62.8
70.8
78.8
86.8
Panel Cutout
1
6
0
5
9
4
8
3
27
1
6
0
5
9
4
8
3
1620.622
2.6
24
24.5 2.8
5.5
*
27
Pin insertion position (2)
Pin insertion position (1)
Ten, 1.2 dia.
Thumbwheel Switches with External Stoppers:
A7BS-20@-S(-1)
Use A7BS-S Stopper Pins to make dial display restrictions for these Switches.
Insert the Stopper Pins in the positions required to give the desired display range. For
example, for a display range of 0 to 5, insert a Stopper Pin at position 1 (see following
diagram) to stop the display from going above 5 when the (+) button is pressed, and insert
a Stopper Pin at position 2 to stop the display from going below 0 when the (-) button is
pressed.
Refer to page 7 for details.
Stopper Pins
Note: 1. Two pins constitute one set.
2. The first shipment is free and is attached
to the Switch.
Order the A7BS-S separately if it is
required for maintenance.
2.7
0.4
2.4 dia. 1.2 dia.
* If the output code is 06, the dimension is 32.5;
if the output code is 07, the dimension is 43.5.
8
±0.1
24
A
15.4 22220.6
24.5
6.1
2.8
P=8
±0.2
6.9 0.8
B
3
3.6
C+
0.3
0
22.4
+0.4
0
When setting
Panel thickness: 1 to 3
Solder terminal
* If the output code is 06, the dimension is 32.5;
if the output code is 07, the dimension is 43.5.
*
A7BL-206(-1)
A7BL-207(-1)
Solder Terminals,
Locking Models
Note: 1. The dimensions above include both End
Caps, and will increase 8 mm for each
Spacer inserted.
2. 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.
Number of
Switches
(n)
Size A
(n x 8 + 8)
Size B
(n x 8 + 6) Size C
1
2
3
4
5
6
7
8
9
10
16
24
32
40
48
56
64
72
80
88
14
22
30
38
46
54
62
70
78
86
14.4
22.4
30.4
38.4
46.8
54.8
62.8
70.8
78.8
86.8
Panel Cutout
4L fir OITIROFI
A7BS/A7BL
4
Accessories (Order Separately)
Note: Unless otherwise indicated, dimensional tolerances for dimensions in the models above are ± 0.4 mm.
Connectors (These devices allow Switches to be quickly removed for maintenance and inspection of connectivity, and quickly re-installed.)
Note: Unless otherwise indicated, dimensional tolerances for dimensions in the models above are ± 0.4 mm.
(30)
24
22
24.5
3.2 4
2.8
(3.5) 3
(30)
24
22
24.5
3.2
42.8
2.4
(3.5)
3
3
Left Side Right Side
End Caps for Push-operated Switches
A7B-M(-1) Snap-in Panel Mounting
3
8±0.1
24
24.52.8
22
Spacers for Push-operated Switches
A7B-P@(-1) Snap-in Panel Mounting
The @ in the Spacer model number stands for a letter in the range A to U. (Refer to the table under the explanation about Spacers on page 2.)
5 31
6
7
42
UP
21
7.8
20.5 13.5
9
P=2.54
22
3
24
31
37
3.3 dia.
A7B-C
Solder Terminals
Connector
5 31
6
7
42
UP
7.8
17.5 13.5
9
22
3
21
24
P = 2.54
0.6 x 0.6
A7B-CP
PCB Terminals
I
5
A7BS/A7BL
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.
How to Read Output Codes
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 2, and terminals 1 and 2 become connector
terminals 4 and 5 respectively.
Output code
number Terminals Output codes
06
07
Component-adding provision
Fourteen,
1-dia. holes
Note: The solid dot indicates that the internal switch is ON
(i.e., connected to the common terminal).
Model
Switch Unit or
Connector
Common ter-
minal number
Terminals connected to
common
Switch Unit C 1 2 4 8
06 Connector 2 4 5 6 7
07 Connector 1 4 5 6 7
Dial
0
1
2
3●●
4
5●●
6●●
7●●●
8
9●●
Twenty-eight,
1-dia. holes
omRon
A7BS/A7BL
6
Output code
number Terminals Output codes
54
55
Component-adding provision
Fourteen,
1-dia. holes
Note: 1. The solid dot indicates that the internal switch is ON
(i.e., connected to the common terminal).
Model
Switch Unit or
Connector
Common ter-
minal number
Terminals connected to
common
Switch Unit C 1 2 4 8
54 Connector 2 4 5 6 7
55 Connector 1 4 5 6 7
Dial
0
1
2
3●●
4
5●●
6●●
7●●●
8
9●●
A●●
B●● ●
C●●
D●●
E●●●
F●●●●
Twenty-eight,
1-dia. holes
IE IZI D E] OITIROFI
A7BS/A7BL
7
Ordering Procedure
Place orders as shown in the example below, specifying the model
and number. Standard products are not factory-assembled for
shipment. Contact your OMRON representative for details on
ordering factory-assembled sets.
1. A7BS-206 (Switch Unit): 2 pieces
2. A7BS-207 (Switch Unit): 2 pieces
3. A7B-PA (Spacer): 1 piece
4. A7B-M (End Caps): 1 pair
Safety Precautions
Refer to Precautions for Correct Use on page in the Technical Guide for Thumbwheel Switches.
Handling
The molded components of the Switch use polyacetal resin and
ABS resin. It is recommended that alcohol is used to wipe off dirt
and smudges from the molded components. Take care to prevent
the alcohol from getting inside.
A7BS/A7BL Thumbwheel Switches are not drip-proof. Do not use
them in areas subject to water or oil.
Do not allow solder flux or alcohol to enter the Switch.
Setting Numbers
Locking Type
Set with the setting button by raising it.
Return the button to its original position after setting. It is then
locked to prevent rotation, and the set numbers will not change
accidentally.
To separate the Switches, use a flat-blade screwdriver as shown in
the following figure to release the hooks on the top and bottom and
then separate the Switches. Be careful not to bend the hooks.
Models with External Stoppers (A7BS-20@-S)
With the A7BS-20@-S, any range can be set externally using the
Stopper Pin. Insert the Stopper Pin using the following procedure:
Example: To Display the Range 0 to 7
1. Any number within the range of (0 to 7) can be chosen to limit the
numbers displayed in the display window. (In this example, 8 and
9 are outside of this range.)
2. First, insert the Stopper Pin in the hole
in front of the lower limit (“0”) for the
number to be defined.
3. Next, inset the Stopper Pin in the hole
past the upper limit (“7”) for the number
to be defined. (The Stopper Pins then
surround the exact range to be
defined.)
4. Confirm that the (+) push-button can no
longer be pushed after reaching the
upper limit of (“7”).
5. Confirm that the (-) push-button can no longer be pushed after
reaching the lower limit of (“0”). This completes the setting.
14324
Precautions for Correct Use
(3) Stopper Pin (upper limit) (2) Stopper Pin (lower limit)
(1) Display window
Terms and Conditions Agreement Read and undersland Ihis catalog Warranlres See hugzl/www omron.com/g|obal/ erirarion on Liabilrry‘ Erc Surrabrlily of Use Programmable Products. Performanoe Dara. Change rn Sgecificarions. Errors and Omissrons. n o ass
Terms and Conditions Agreement
Read and understand this catalog.
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you
have any questions or comments.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses regarding the Products unless Omrons analysis confirms that the Products
were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate
modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining
suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate
it to actual application requirements. Actual performance is subject to the Omrons Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2016.4
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2016 All Right Reserved.

Products related to this Datasheet

SWITCH THUMB HEX 0.1A 50V/28V
CONNECTOR EDGEBOARD SLDR TERM
SPACER LIGHT GRAY A7B SERIES
SPACER
SPACER BLACK FITS A7BS SER
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB SPDT 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
END CAP 2 PCS BLK FITS A7BS SER
SWITCH THUMB SPDT 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
STOPPER PIN
SWITCH THUMB BCD 0.1A 50V/28V
CONNECTOR EDGE FRONT MNT
END CAP LIGHT GRAY A7B SERIES
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB SPDT 0.1A 50V/28V
SWITCH THUMB SPDT 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB DECIMAL 0.1A 50/28V
SWITCH THUMB DECIMAL 0.1A 50/28V
SWITCH THUMB SPDT 0.1A 50V/28V
SWITCH THUMB SPDT 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB BCD 0.1A 50V/28V
SWITCH THUMB DECIMAL 0.1A 50/28V