logging in or signing up Haydon Kerk Basic Product Training 2009 Electromate Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Copy Does not support media & animations WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 19 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: December 20, 2011 This Presentation is Public Favorites: 0 Presentation Description Haydon Kerk Basic Product Training 2009 Comments Posting comment... Premium member Presentation Transcript PowerPoint Presentation: • Why a stepper motor / actuator? • Unlike other motors, stepper are unique, as they move a given amount of rotary motion for every input pulse. • Can-stack motors will step 7.5 or 15 rotational degrees for each input pulse. • Hybrid motors will step 0.9 or 1.8 rotational degrees for each input pulse. • This allows the motor to be used very effectively for positioning applications. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Types of linear actuators Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Catalog review: • Force vs Linear velocity • Force vs Full Steps / Second Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Actuator life Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: percent load vs number of cycles 120 100 80 60 40 20 0 1 100 10000 1000000 number of cycles percent load vs number of cycles 1E+08 Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Sizing the actuator Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: How to size a linear actuator: • The following information must be known: • The load to be moved. ( Expressed in Newtons ) • The distance that the load is to moved. ( Expressed in Meters ) • The time required to move the load the given distance. ( Expressed in seconds. ) • The mechanical power is then calculated in watts. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Linear power: P lin ( watts ) : P lin = (distance traveled in Meters) ( force in Newtons ) Time to travel the distance in Second = watts Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Example: • Let us assume that we have the following application needs: - force = 15 lbs - travel = 3 inches - time to achieve the travel = 6 seconds - number of desired cycles = 1,000,000 - linear velocity = 3 inches / 6 sec. = 0.5 inches per second Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Calculate the initial force based on number of cycles desired - From the percent load vs number of cycle table determine the % loss after the 1,000,000 cycles. - This = 50%; Therefore the initial force required = 15 lbs / .5 = = 30 lbs. - Convert this to Newtons. 30 / 0.225 = 133 Newtons Life expectancy 120 100 80 60 40 20 0 1 100 10,000 1,000,000 number of cycles percent load vs number of cycles 100,000,000 Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Example continued: • Verify your selection by checking force at required step rate. • The resolution we chose is “J”. (0.00048 inches per step) • Linear velocity = 0.5 inches per second • Step rate = 0.5 / 0.00048 = 1041 steps per second • Verify that the required force is present at 1041 steps per second using the force vs step rate curve. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Ramping: • Sometimes, we may need to have the actuator perform a bit faster than that shown in the catalog curves. • To do this we apply ramping to our input pulses. • This means that we start slowly but RAMP the pulse rate to a high final velocity. • This final velocity is higher that then velocity the actuator could reach without ramping ( acceleration ) Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Ramping continued: • Ramping can typically result in an increase step rate of approximately 60 %. force vs linear velocity 400 300 200 100 0 0 Z = 1.6 x Z 1 2 3 inches per second no ramping with ramping Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Resolution, Accuracy, & Repeatability… • What’s the difference?? Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • RESOLUTION: • The incremental distance the actuator’s output shaft will extend per input pulse (mm/step) • Formula: _______LEAD_________ (360 degrees / step angle) Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • ACCURACY: • The difference between the theoretical distance and the actual distance traveled is the actuator’s accuracy. • Example: For an actuator utilizing a screw with a 1” lead, 360 deg of rotary motion will result in a theoretical 1” stroke. Due to manufacturing tolerances in the components of the actuator, the actual travel will be slightly different. The magnitude of this difference is the accuracy of the actuator. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • REPEATABILITY: • The range of positions attained when the actuator is commanded to approach the same target multiple times under identical conditions. • Example: Allow the actuator to extend a given distance from it ’s home position. Measure and record this distance and call it “x”. Retract the actuator back to it ’s home position. Command the actuator to return to the commanded distance “x”. The difference between the new distance traveled and the original distance “x” is repeatability. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Haydon Kerk Basic Product Training 2009 Electromate Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: Embed: Flash iPad Copy Does not support media & animations WordPress Embed Customize Embed URL: Copy Thumbnail: Copy The presentation is successfully added In Your Favorites. Views: 19 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: December 20, 2011 This Presentation is Public Favorites: 0 Presentation Description Haydon Kerk Basic Product Training 2009 Comments Posting comment... Premium member Presentation Transcript PowerPoint Presentation: • Why a stepper motor / actuator? • Unlike other motors, stepper are unique, as they move a given amount of rotary motion for every input pulse. • Can-stack motors will step 7.5 or 15 rotational degrees for each input pulse. • Hybrid motors will step 0.9 or 1.8 rotational degrees for each input pulse. • This allows the motor to be used very effectively for positioning applications. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Types of linear actuators Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Catalog review: • Force vs Linear velocity • Force vs Full Steps / Second Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Actuator life Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: percent load vs number of cycles 120 100 80 60 40 20 0 1 100 10000 1000000 number of cycles percent load vs number of cycles 1E+08 Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Sizing the actuator Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: How to size a linear actuator: • The following information must be known: • The load to be moved. ( Expressed in Newtons ) • The distance that the load is to moved. ( Expressed in Meters ) • The time required to move the load the given distance. ( Expressed in seconds. ) • The mechanical power is then calculated in watts. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Linear power: P lin ( watts ) : P lin = (distance traveled in Meters) ( force in Newtons ) Time to travel the distance in Second = watts Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Example: • Let us assume that we have the following application needs: - force = 15 lbs - travel = 3 inches - time to achieve the travel = 6 seconds - number of desired cycles = 1,000,000 - linear velocity = 3 inches / 6 sec. = 0.5 inches per second Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Calculate the initial force based on number of cycles desired - From the percent load vs number of cycle table determine the % loss after the 1,000,000 cycles. - This = 50%; Therefore the initial force required = 15 lbs / .5 = = 30 lbs. - Convert this to Newtons. 30 / 0.225 = 133 Newtons Life expectancy 120 100 80 60 40 20 0 1 100 10,000 1,000,000 number of cycles percent load vs number of cycles 100,000,000 Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Example continued: • Verify your selection by checking force at required step rate. • The resolution we chose is “J”. (0.00048 inches per step) • Linear velocity = 0.5 inches per second • Step rate = 0.5 / 0.00048 = 1041 steps per second • Verify that the required force is present at 1041 steps per second using the force vs step rate curve. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Ramping: • Sometimes, we may need to have the actuator perform a bit faster than that shown in the catalog curves. • To do this we apply ramping to our input pulses. • This means that we start slowly but RAMP the pulse rate to a high final velocity. • This final velocity is higher that then velocity the actuator could reach without ramping ( acceleration ) Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: Ramping continued: • Ramping can typically result in an increase step rate of approximately 60 %. force vs linear velocity 400 300 200 100 0 0 Z = 1.6 x Z 1 2 3 inches per second no ramping with ramping Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • Resolution, Accuracy, & Repeatability… • What’s the difference?? Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • RESOLUTION: • The incremental distance the actuator’s output shaft will extend per input pulse (mm/step) • Formula: _______LEAD_________ (360 degrees / step angle) Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • ACCURACY: • The difference between the theoretical distance and the actual distance traveled is the actuator’s accuracy. • Example: For an actuator utilizing a screw with a 1” lead, 360 deg of rotary motion will result in a theoretical 1” stroke. Due to manufacturing tolerances in the components of the actuator, the actual travel will be slightly different. The magnitude of this difference is the accuracy of the actuator. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.comPowerPoint Presentation: • REPEATABILITY: • The range of positions attained when the actuator is commanded to approach the same target multiple times under identical conditions. • Example: Allow the actuator to extend a given distance from it ’s home position. Measure and record this distance and call it “x”. Retract the actuator back to it ’s home position. Command the actuator to return to the commanded distance “x”. The difference between the new distance traveled and the original distance “x” is repeatability. Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com