{"id":28345,"date":"2022-03-07T16:28:30","date_gmt":"2022-03-07T21:28:30","guid":{"rendered":"https:\/\/www.aerotech.com\/?p=28345"},"modified":"2023-03-11T13:03:21","modified_gmt":"2023-03-11T18:03:21","slug":"automation1-linear-servo-drive-products-provide-industry-leading-in-position-stability","status":"publish","type":"post","link":"https:\/\/www.aerotech.com\/automation1-linear-servo-drive-products-provide-industry-leading-in-position-stability\/","title":{"rendered":"Automation1 Linear Servo Drive Products Provide Industry-Leading In-Position Stability"},"content":{"rendered":"

Aerotech\u2019s Automation1 linear amplifier products<\/a> provide industry-leading in-position stability performance.<\/p>

The Automation1 XR3<\/a> multi-axis drive rack can be configured with up to six individual XSL3 amplifiers. The Automation1 XL2<\/a>e enhanced, compact linear servo drive is a single-axis version that uses similar technology. Both the XR3 with XSL3 amplifiers and the XL2e drive use low-noise linear power amplifiers combined with precision servo control technology to provide industry-leading in-position stability.<\/p>

Each drive was tested by commanding a cross-roller bearing stage to maintain a standstill position using only the drive\u2019s control loops (i.e., no external brake or other device assisted in maintaining position). The stage was horizontally mounted to vacuum rails on a granite table supported by air isolation. The position error was read by the stage\u2019s 4 \u03bcm pitch amplified sine-wave encoder, multiplied by each drive\u2019s feedback resolution multiplication circuitry. The root-mean-square (RMS) position measurement was calculated from the collected data. Figure 1 shows the test results for the XSL3 and XL2e, respectively.<\/p>

\"\"
Figure 1.<\/strong> Aerotech\u2019s Automation1 XSL3 linear amplifier (top) is controlled by the configured XR3 drive rack. The Automation1 XL2e (bottom) is a fully integrated single-axis drive. Both devices use a 20 kHz servo and current control loop, hardware-based amplified sine-wave encoder resolution multiplication, high-resolution current sensing and excellent signal-processing capabilities, enabling superior positioning performance.<\/em><\/figcaption><\/figure>

Linear amplifiers have a unique advantage over PWM amplifiers in that they have no switching noise or amplifier deadtime. Therefore, they deliver high-precision position and velocity tracking, making linear amplifiers ideal for small step size and in-position stability applications. Linear amplifiers like the Automation1 XL2e (see Figure 2 below) also have the added benefit of reduced electromagnetic interference (EMI) noise due to the lack of PWM on\/off amplifier switching. This feature makes linear amplifiers a desirable choice for many sensing and testing applications.<\/p>

\"\"
Figure 2.<\/strong> Aerotech\u2019s Automation1 XL2e, seen here with and without the optional -EB1 expansion I\/O board, offers industry-leading performance in a highly integrated design.<\/em><\/figcaption><\/figure>

Summary<\/h2>

The innovative Automation1<\/a> precision machine and motion control platform offers several linear amplifier products<\/a>. Figure 3 gives a quick summary of testing performed on the XL2e, XL5e and XSL3 linear amplifier products.<\/p>

Linear amplifier<\/strong><\/td>In-position jitter, cross-roller bearing stage<\/strong><\/td>In-position jitter, air bearing stage<\/strong><\/td>Device type<\/strong><\/td>Peak amplifier power dissipation per phase<\/strong><\/td><\/tr>
XSL3 (XR3)<\/td>0.11 nm, RMS<\/td>0.6 nm, RMS<\/td>Slice amplifier for drive rack<\/td>400 W<\/td><\/tr>
XL2e<\/td>0.12 nm, RMS<\/td>0.9 nm, RMS<\/td>Single-axis drive<\/td>400 W<\/td><\/tr>
XL5e<\/td>–<\/td>0.8 nm, RMS<\/td>Single-axis drive<\/td>1200 W<\/td><\/tr><\/tbody><\/table>
Figure 3.<\/strong> Summary of in-position test results for the Automation1 platform\u2019s XSL3, XL5e and XL2e linear amplifier products. For a complete look at in position stability for Automation1 drive hardware, please refer to this application note<\/a>.<\/em><\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"

Aerotech\u2019s Automation1 linear amplifier products provide industry-leading in-position stability performance.…<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","_searchwp_excluded":"","footnotes":""},"categories":[959,945],"tags":[],"content_type":[968],"industry":[],"topic":[987],"class_list":["post-28345","post","type-post","status-publish","format-standard","hentry","category-application-note","category-motion-control-platforms","content_type-application-note","topic-motion-control-platforms"],"acf":[],"yoast_head":"\nAutomation1 Linear Servo Drive Products | Aerotech<\/title>\n<meta name=\"description\" content=\"Automation1 linear servo drive products provide industry-leading in-position stability performance. 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