$@MID@$: 279
Date: Mon, 10 Feb 2020 14:57:56 +0000
Author: Ino + Gael + Thierry
Type: Other
Category: Hardware
Subject: Azimuth Locking System 
Status: Fixed
Attachment: 200210_151639_P1040870.JPG,200210_151639_P1040890.JPG,200210_151639_P1040872.JPG,200210_151639_P1040873.JPG,200210_151639_P1040874.JPG,200210_151639_P1040875.JPG,200210_151639_P1040876.JPG,200210_151639_P1040877.JPG,200210_151639_P1040878.JPG,200210_151639_P1040881.JPG,200210_151639_P1040882.JPG,200210_151639_P1040887.JPG,200210_151639_P1040888.JPG,200210_151639_P1040889.JPG
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<p>Last week we put in sevice the new ALS completly modified:</p>

<p>_ Main System with new reducer.</p>

<p>_ New Speed parameters for Main System (motor is at full speed but due to reducer the spped is slow). Decceleration sensors not installed since the speed is very slow.</p>

<p>_ All the sensors were replaced by new ones (2 logic embedded in each sensor (NC + NO) ) = only one type of sensor in the ALS. Sensor with connector to ease maintenance.</p>

<p>_ All sensor cabling were changed and new ducts were installed to ease maintenance.</p>

<p>_ The damaged cable of the loadcell was welded again and protected (<!--StartFragment-->Heat shrink tube + tape).<!--EndFragment--></p>

<p>_ Add mechanical part to protect loadcell cable when opening over the opening position. It&#39;s now impossible to damage Loadcell cable.</p>

<p>_ Increase speed of plier. We add a deceleration sensor in each plier.</p>

<p>_ All the sensors support are new to avoid dammage if there is over position due to manual operation.</p>

<p>&nbsp;</p>

<p>The ALS is now functionnal with human interface. The system are so slow 180s !!!, They were not integrated into automatic cycles.</p>

<p>Shifters must manage the Opening/Closing of the ALS at the Start/End od telescope operations.</p>

<p>&nbsp;</p>

<p>A new error code is ride up if a door is opened during motion (3002).</p>

<p>&nbsp;</p>