<html><body><div style="font-family: tahoma,new york,times,serif; font-size: 14pt; color: #009900"><div>thanks for the update pablo.<br></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Pablo Campero" <campero@jlab.org><br><b>To: </b>"dsg-hallb magnets" <dsg-hallb_magnets@jlab.org><br><b>Sent: </b>Thursday, June 29, 2017 2:14:56 PM<br><b>Subject: </b>[Dsg-hallb_magnets] Status of initial Load Cell test readout<br></div><div><br></div><div data-marker="__QUOTED_TEXT__"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000" data-mce-style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000;"><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">Hello Amrit,</span></div><br><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;">Eight load cell for the radial supports in the Solenoid were connected.</span></div><br><div><span style="font-family: georgia, serif;" data-mce-style="font-family: georgia, serif;"><span data-mce-style="font-family: georgia,serif;" style="font-family: georgia,serif;">Initially to measure the local readout load cells values was used hardware device FUTEK. Values can be found at logbook </span><a href="https://logbooks.jlab.org/entry/3477481" class="lognumber" style="font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 14px; text-decoration: underline; color: rgb(143, 106, 175); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: bold; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255);" target="_blank" data-mce-href="https://logbooks.jlab.org/entry/3477481" data-mce-style="font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; text-decoration: underline; color: #8f6aaf; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: bold; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff;">3477481</a><span data-mce-style="color: #313131; font-family: Trebuchet MS,Helvetica Neue,Arial,Helvetica,sans-serif;" style="color: #313131; font-family: Trebuchet MS,Helvetica Neue,Arial,Helvetica,sans-serif;" face="Trebuchet MS, Helvetica Neue, Arial, Helvetica, sans-serif"><b>.</b></span></span></div><div><span style="font-family: georgia, serif; font-size: 12pt;" data-mce-style="font-family: georgia, serif; font-size: 12pt;">However the values read by our control systems (LV Chasiss, cRIO, PLC) are not the expected. </span><br></div><div><p style="margin: 0px; padding: 0px; color: rgb(49, 49, 49); font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;" data-mce-style="margin: 0px; padding: 0px; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial;"><span style="font-family: georgia, serif; font-size: 12pt;" data-mce-style="font-family: georgia, serif; font-size: 12pt;">Connections and wiring between Magnet and controls were checked and they seems to be correct. </span></p><p style="margin: 0px; padding: 0px; color: rgb(49, 49, 49); font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;" data-mce-style="margin: 0px; padding: 0px; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial;"><span style="font-family: georgia, serif; font-size: 12pt;" data-mce-style="font-family: georgia, serif; font-size: 12pt;">We believe that the issues could be in the readback voltage (sense) form the actual load cell sensor to the LV chassis. It needs further investigation.</span></p><p style="margin: 0px; padding: 0px; color: rgb(49, 49, 49); font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;" data-mce-style="margin: 0px; padding: 0px; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial;"><span style="font-family: georgia, serif; font-size: 12pt;" data-mce-style="font-family: georgia, serif; font-size: 12pt;">In order to solve this; the plan for this afternoon is use a load cell probe connected directly to the LV chassis, vary its values (vary the load on it) and verified readback values by comparing with the local measurements on the FUTEK device.</span></p><p style="margin: 0px; padding: 0px; color: rgb(49, 49, 49); font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;" data-mce-style="margin: 0px; padding: 0px; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial;"><br></p><p style="margin: 0px; padding: 0px; color: rgb(49, 49, 49); font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;" data-mce-style="margin: 0px; padding: 0px; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial;"><br></p><p style="margin: 0px; padding: 0px; color: rgb(49, 49, 49); font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;" data-mce-style="margin: 0px; padding: 0px; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial;"><span style="font-family: georgia, serif; font-size: 12pt;" data-mce-style="font-family: georgia, serif; font-size: 12pt;">Best Regards,</span></p><p style="margin: 0px; padding: 0px; color: rgb(49, 49, 49); font-family: "Trebuchet MS", "Helvetica Neue", Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;" data-mce-style="margin: 0px; padding: 0px; color: #313131; font-family: 'Trebuchet MS', 'Helvetica Neue', Arial, Helvetica, sans-serif; font-size: 14px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: #ffffff; text-decoration-style: initial; text-decoration-color: initial;"><span style="font-family: georgia, serif; font-size: 12pt;" data-mce-style="font-family: georgia, serif; font-size: 12pt;">Pablo </span></p></div></div><br>_______________________________________________<br>Dsg-hallb_magnets mailing list<br>Dsg-hallb_magnets@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/dsg-hallb_magnets<br></div></div></body></html>