Thumbwheel Switch A7D/A7DP CSM_A7D_A7DP_DS_E_3_1 Ultra-small, Low-cost, Push-operated Switches • All-in-one design means fewer parts are required. This product delivers high reliability at a low cost. • Uses long-lasting resin springs to achieve a long mechanical durability expectancy of 30,000 operations. • Models with stoppers for restricting the setting range are available. • The series includes a complete range of pen-push models that prevent accidental operation. Ordering Information Switches (Single Switch Units) Model A7D Screw mounting (back mounting) Snap-in (front mounting) A7DP Snap-in (front mounting) Classification (See note 1.) Terminals Color 06 (binary coded decimal) Output code number Light gray A7D-106 Black A7D-106-1 PCB terminals Light gray Black A7D-206 A7D-206-1 Light gray A7DP-206 Black A7DP-206-1 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 “[email protected]@” after the “106” or “206” 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., A7D-106-S06-1). 4. Models with +, - displays are also available. Add “-PM” after the “106” or “206” in the model number (e.g., A7D-106-PM or A7D-106-PM-1). Accessories (Order Separately) Use accessories, such as End Caps and Spacers, with the Switch Units. Classification Accessory Color End Caps (1 pair) Screw mounting (back mounting) Light gray Black A7D-1M * A7D-1M-1 * [email protected] [email protected] (See note.) (See note.) Spacer Snap-in (front mounting) Light gray Black A7D-2M * A7D-2M-1 * [email protected] [email protected] (See note.) (See note.) 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.) * The minimum order is for 10 End Caps. 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 A No designation B C D E F G SEC MIN H g kg mm Q x 10 SEC T U 0 • Symbol H J K L Stamp cm m °C PCS 1 A7D/A7DP Specifications 5 to 30 VDC 1 mA to 0.1 A 100 mA 200 mΩ max. Switching capacity (resistive load) Continuous carry current Contact resistance Between non-connected terminals Insulation resistance Between terminal and non-current carrying part Between non-connected terminals Dielectric strength Between terminal and non-current carrying part Vibration resistance Shock resistance Mechanical Durability Electrical 10 MΩ min. (at 250 VDC) 100 MΩ min. (at 500 VDC) 250 VAC, 50/60 Hz for 1 min 1,000 VAC, 50/60 Hz for 1 min 10 to 55 Hz, 1.5-mm double amplitude 500 m/s2 min. 30,000 operations min. 20,000 operations min. Operating: –10°C to 70°C (with no icing) Storage: –20°C to 80°C Operating: 45% to 85% 3.43 N max. Ambient temperature Ambient humidity Max. operating force Dimensions (Unit: mm) Switches A7D-106(-1) PCB Terminals C B 2 A 5.08±0.1 1.6 17 Number of Switches (n) 1.5 3.7 4.2 1.92 2.8 10 16 14±0.1 8 4 2 1 C 2.2 P=2.54 1.4 14±0.15 0.8 PCB terminal Panel thickness: 2 1.5 Panel Cutout 14.2+0.4 0 1.85 1.5 P=5.08±0.3 D+0.3 0 (2.2) Two, M2.6 or 2.8 mm holes B Note: Common terminal C is at the bottom when the Switch Unit is viewed from the front. A7D-206(-1) PCB Terminals 1.5 (2.5) 3.7 1.92 16 10 2.2 8 4 2 1 C P=2.54 14±0.15 0.8 PCB terminal Panel thickness: 1 to 2 1.5 1.4 Panel Cutout 14.2+0.4 0 P=5.08±0.3 B (1.5) (2.2) C+0.3 0 Note: Common terminal C is at the bottom when the Switch Unit is viewed from the front. Size B Size C (n x 5.1 + 8.3) (n x 5.1 + 13.3) Size D 1 8.1 13.4 18.4 8.4 2 13.2 18.5 23.5 13.5 3 18.3 23.6 28.6 18.6 4 23.4 28.7 33.7 23.7 5 28.5 33.8 38.8 28.8 6 33.5 38.9 43.9 33.9 7 38.6 44.0 49.0 39.0 8 43.7 49.1 54.1 44.1 9 48.8 54.2 59.2 49.2 10 53.9 59.3 64.3 54.3 Note: 1. The dimensions above include both End Caps, and will increase 5.08 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) 17.5 1.5 3.7 A 5.08±0.1 Size A (n x 5.1 + 3) Size A (n x 5.1 + 5) Size B (n x 5.1 + 3) Size C (n x 5.1 + 3.9) 1 10.1 8.1 9 2 15.2 13.2 14.1 3 20.3 18.3 19.2 4 25.4 23.4 24.3 5 30.5 28.5 29.4 6 35.5 33.5 34.5 7 40.6 38.6 39.6 8 45.7 43.7 44.7 9 50.8 48.8 49.8 10 55.9 53.9 54.9 Note: 1. The dimensions above include both End Caps, and will increase 5.08 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. 2 A7D/A7DP A7DP-206(-1) PCB Terminals, Pen-push Model 1.5 3.7 1.9 A 5.08±0.1 (2.5) Number of Switches (n) 17.5 1.5 1.92 16 10 8 4 2 1 C 2.2 P= 2.54 14±0.15 0.8 PCB terminal Panel thickness: 1 to 2 1.4 Panel Cutout P= 5.08±0.3 B Size B (n x 5.1 + 3) Size C (n x 5.1 + 3.9) 1 10.1 8.1 9 2 15.2 13.2 14.1 3 20.3 18.3 19.2 4 25.4 23.4 24.3 5 30.5 28.5 29.4 6 35.5 33.5 34.5 7 40.6 38.6 39.6 8 45.7 43.7 44.7 9 50.8 48.8 49.8 10 55.9 53.9 54.9 Note: 1. The dimensions above include both End Caps, and will increase 5.08 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. 14.2+0.4 0 (1.5) (2.2) Size A (n x 5.1 + 5) C Note: Common terminal C is at the bottom when the Switch Unit is viewed from the front. Accessories (Order Separately) End Caps for Push-operated Switches A7D-1M(-1) Screw Mounting (Back Mounting) Left Side Right Side 6.5 1.5 16 2 End Caps for Push-operated Switches A7D-2M(-1) Snap-in Mounting (Front Mounting) 14 Left Side 6.5 0.8 14 1.5 15.5 0.7 1.5 0.8 1.4 1.5 Right Side 3.3 16 0.8 16 2 15.5 17.5 16 1.5 1.5 2.5 0.7 1.5 14 2.6 0.8 2 0.8 1.4 0.7 1.5 2.6 14 1.5 Spacers for Push-operated Switches [email protected](-1) Snap-in Mounting (Front Mounting) 17.5 5.08±0.1 5 16 17.5 1.5 Spacers for Push-operated Switches [email protected](-1) Screw Mounting (Back Mounting) 16 2.5 1.5 5 17.5 5.08±0.1 1.6 0.8 14±0.15 16 1.4 Note: 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 1.) 1.5 14±0.15 16 1.4 Note: 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 1.) Note: Unless otherwise indicated, dimensional tolerances for dimensions in the models above are ± 0.4 mm. Output Codes Output code number 06 (Binary Code) Internal circuit Dial display Terminal C 1 2 4 8 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). 3 A7D/A7DP Ordering Procedure Place orders as shown in the example below, specifying the model and number. 1 1. 2. 3. 4. 5. 2 3 4 5 1 A7D-2M (End Caps): 1 pair [email protected]@ (Switch Unit with stopper): 1 piece A7D-206 (Switch Unit): 1 piece [email protected] (Spacer): 1 piece A7D-206 (Switch Unit): 2 pieces Note: Standard products, such as the Switch Units and End Caps, are not factory-assembled for shipment. Contact your OMRON representative for details on ordering factory-assembled sets. Safety Precautions Refer to Safety Precautions for All Thumbwheel Switches. Precautions for Correct Use Handling • The molded components of the Switch use polyacetal resin and PBT 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. • Do not use thinner or other solutions which might damage the resin. • Terminals can withstand a force of 4.9 N for 10 seconds or more (the mating strength of the case and seal), and survive bending of 20° without breaking after returning to original position. Do not use excessive force or apply repetitive external force, however, when handling terminals. In particular, take care to avoid dropping them as the terminals might bend or break. Soldering • Using a Soldering Iron Use a 30-W soldering iron at a temperature of 350°C for a maximum of 3 seconds, and flush as described above. Do not apply force to the terminals during soldering and for 3 minutes after soldering is completed. Doing so may result in conduction or operation failure. Ensure that soldering flux and alcohol do not penetrate into the Switch interior Setting Numbers Pen-push Type Press the setting switch with the tip of a ball-point pen. Do not use pencil point or mechanical pencil point to press the setting switch, otherwise the lead of the pencil or mechanical pencil may be broken and A7DP malfunctions may result due to fragments of the broken lead. • The setting buttons can withstand 19.6 N for 1 minute, but do not push the (+) and (-) buttons at the same time. Screw-mounting Models Tighten mounting screws to a torque between 0.2 to 0.24 N·m, using M2.6 screws. Use plain washers or spring washers together with the screws. 4 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. Warranty and Limitations of Liability WARRANTY OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified) from date of sale by OMRON. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED. LIMITATIONS OF LIABILITY OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY. In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted. IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR. Application Considerations SUITABILITY FOR USE OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the products. At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use. The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products: Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog. Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations. Systems, machines, and equipment that could present a risk to life or property. Please know and observe all prohibitions of use applicable to the products. NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. PROGRAMMABLE PRODUCTS OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof. Disclaimers 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 model numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual specifications of purchased products. DIMENSIONS AND WEIGHTS Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown. PERFORMANCE DATA Performance data given in this catalog 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 users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability. ERRORS AND OMISSIONS The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions. 2013.2 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 2013 All Right Reserved.