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Hi,</div>
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Sheet 20 of PLC. Connection lines for LVDT faults have been temp removed to allow for PLC control of the valves.</div>
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JT motor in position for JT_1 and JT_2 works for both modes: key switch manual and for remote PLC control.</div>
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PLC is not seeing LVDT signals for JT1 or JT2 when cable is connected.</div>
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Steven<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Dsg-halla_magnets <dsg-halla_magnets-bounces@jlab.org> on behalf of Steven Lassiter <lassiter@jlab.org><br>
<b>Sent:</b> Monday, February 21, 2022 2:33 PM<br>
<b>To:</b> Pablo Campero Rojas <campero@jlab.org>; dsg-halla_magnets@jlab.org <dsg-halla_magnets@jlab.org><br>
<b>Subject:</b> Re: [Dsg-halla_magnets] PLC control of JT valve action</font>
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I found the source. The links on page 15 were unconnected for JT-V1. I edited the program and re-connected them.</div>
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I t now works for JT_V1.</div>
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Were all valves tested?<br>
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Steven<br>
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<div id="x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Pablo Campero Rojas <campero@jlab.org><br>
<b>Sent:</b> Monday, February 21, 2022 2:17 PM<br>
<b>To:</b> Steven Lassiter <lassiter@jlab.org>; dsg-halla_magnets@jlab.org <dsg-halla_magnets@jlab.org><br>
<b>Subject:</b> Re: PLC control of JT valve action</font>
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<div dir="ltr"><span style="font-family:Calibri,Helvetica,sans-serif">Hello Steven,</span>
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<div><span style="font-family:Calibri,Helvetica,sans-serif">Valves controls were tested and working in remote (PLC) and local (manual control with switch) modes after debugging was done on Thursday afternoon.</span></div>
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<div><span style="font-family:Calibri,Helvetica,sans-serif">I was planing on going to the Test Lab tomorrow morning since I still need to check the valve position in the voltmeter (Red Lion) monitor. I can re-check the PLC control for the valves as well.</span></div>
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<span style="font-family:Calibri,Helvetica,sans-serif">-Pablo</span><br>
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<div id="x_x_divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> Dsg-halla_magnets <dsg-halla_magnets-bounces@jlab.org> on behalf of Steven Lassiter <lassiter@jlab.org><br>
<b>Sent:</b> Monday, February 21, 2022 1:38 PM<br>
<b>To:</b> dsg-halla_magnets@jlab.org <dsg-halla_magnets@jlab.org><br>
<b>Subject:</b> [Dsg-halla_magnets] PLC control of JT valve action</font>
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Hello Pablo,</div>
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When the PLC has control of the JT motors, the relays are being turned on/off when the codes sends the signal to open or close them.</div>
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The JTV1 is now opening and closing in key switch manual mode. It does not work in PLC mode.</div>
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Steven<br>
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