<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Thank you Pablo - a nice solution.<br></div><div><br data-mce-bogus="1"></div><div>Joe, George,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Please see below for how we are intending to monitor pump operation. Scot will check that pump speed at 200Hz is more than sufficient for the guard vacuum - it should be but it is worth checking.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Wesley,<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>I believe that Joe wanted this pump output to be displayed on the Solenoid Helium screen.<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Regards<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div>Ruben<br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br data-mce-bogus="1"></div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><b>From: </b>"Pablo Campero Rojas" <campero@jlab.org><br><b>To: </b>"dsg-hallb magnets" <dsg-hallb_magnets@jlab.org><br><b>Sent: </b>Tuesday, May 2, 2017 3:42:48 PM<br><b>Subject: </b>Re: [Dsg-hallb_magnets] Readout of the status of the Guard Vacuum Pump<br></div><br><div data-marker="__QUOTED_TEXT__"><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hello Ruben,</div><br><div>In order to get readout the status of the Guard Vacuum Pump, it was decided to implement a Signal Conditioner <span style="color: rgb(0, 0, 0); font-family: arial, helvetica, sans-serif; font-size: 16px; 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; display: inline !important; float: none;">(931S-F1C2D-DC), which will be use to convert the output frequency signal (RPM from Guard Vacuum pump) to analog signal 4-20 mA (to be added in the PLC Module). </span></div></div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><br></div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000">The following steps were performed to test the functionality of the Signal Conditioner:<br><div> 1. Measured output signals from the Guard Vacuum pump </div><div> - Frequency Range: 0-200 Hz, </div><div> - Voltage of pulse train = 3.09 [V]</div><div> 2. Configured DIP switches in the Signal Conditioner to set:</div><div> -. input frequency operation range of 0 - 200 Hz.</div><div> - Output signal mode to be 4-20 [mA] analog signal.</div><div> 3.Calibrated MOOG Vacuum pump controller to have a Max RPM at 200 [Hz], and in this way we protect the vacuum pump.</div><div> 4.Measured output signal of the Signal Conditioner</div><div> - At 0 RPM = 0 [Hz] -- output is 4.01 [mA]</div><div> -At Max RPM = 200 [Hz]--output is 20 [mA]</div><br><div>Test was performed as expected and the Signal Conditioner is ready to be install in the Hall.</div><div>The signal to monitor the status of the Guard Vacuum pump (PS8677) was added to the Solenoid PLC program, and this is ready to be tested once we have all the vacuum hardware instrumentation set and installed.<br></div><br><br><div>Wesley,</div><br><div>The following is the data that might be you need to be able to display the signal on the Solenoid EPICS screen:</div><div> - PLC tag name :PS8677</div><div> - Data Type : Real </div><div> - Units to display : [RPM]</div><br><br><div>Best Regards</div><div>Pablo. </div><br><br><hr id="zwchr"><div><b>From: </b>"Ruben Fair" <rfair@jlab.org><br><b>To: </b>"Pablo Campero Rojas" <campero@jlab.org><br><b>Cc: </b>"Scot Spiegel" <spiegel@jlab.org>, "Nicholas Sandoval" <sandoval@jlab.org><br><b>Sent: </b>Friday, April 21, 2017 2:02:14 PM<br><b>Subject: </b>Re: [Dsg-hallb_magnets] Readout of the status of the Guard Vacuum Pump<br></div><br><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Thank you Pablo.<br></div><br><div>Please discuss with Nick and Scot to implement your solution.<br></div><br><div>Please do your best to minimize any further hardware costs to resolve this.<br></div><br><div>Regards<br></div><br><div>Ruben<br></div><br><br><br><br><hr id="zwchr"><div><b>From: </b>"Pablo Campero Rojas" <campero@jlab.org><br><b>To: </b>"dsg-hallb magnets" <dsg-hallb_magnets@jlab.org><br><b>Sent: </b>Friday, April 21, 2017 1:33:32 PM<br><b>Subject: </b>Re: [Dsg-hallb_magnets] Readout of the status of the Guard Vacuum Pump<br></div><br><div><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hello Ruben,</div><br><div>I think that, using the 1756-HSC module could be one way to read the (RPM) status of the guard Vacuum pump, but also I can propose use a Signal Conditioner (931S-F1C2D-DC) which has a input frequency of 100 kHz (See attached manual-page 33) and converts the frequency into (0-20/4-20 mA) analog signal. So in that sense we can use one of the spare channels of the Analog module (1756-IF16) that we already have installed in the Solenoid Local chassis .</div><div>Both solution can work. I would like to check the pulse train signal output this afternoon.</div><br><div>Best Regards</div><div>Pablo</div><br><hr id="zwchr"><div><b>From: </b>"Ruben Fair" <rfair@jlab.org><br><b>To: </b>"Nicholas Sandoval" <sandoval@jlab.org>, campero@jlab.org<br><b>Cc: </b>"Scot Spiegel" <spiegel@jlab.org><br><b>Sent: </b>Friday, April 21, 2017 8:36:45 AM<br><b>Subject: </b>Re: Readout of the status of the Guard Vacuum Pump<br></div><br><div>Pablo<br><br>Please get involved with this and work with Scot and Nick to see if you guys can come up with an acceptable solution.<br><br>Regards<br><br>Ruben<br><br>> On Apr 21, 2017, at 8:02 AM, Nicholas Sandoval <sandoval@jlab.org> wrote:<br>> <br>> Hi Scot,<br>> <br>> I would look into 1756-HSC if you want to keep it on the PLC chassis. We have same module in Hall-D except it is for a different architecture, 1769. If you would like to try a test run I do have a developmental 1769 chassis with 1769-HSC module installed that can be lended out. <br>> <br>> Frequency mode description starts at pg 29 of attached manual<br>> <br>> Best REgards,<br>> <br>> Nick<br>> <br>> <br>> <br>> <br>> ----- Original Message -----<br>> From: "Scot Spiegel" <spiegel@jlab.org><br>> To: "Nicholas Sandoval" <sandoval@jlab.org><br>> Cc: "Ruben Fair" <rfair@jlab.org>, "George Biallas" <biallas@jlab.org><br>> Sent: Friday, April 21, 2017 7:10:45 AM<br>> Subject: Re: Readout of the status of the Guard Vacuum Pump<br>> <br>> Nick, <br>> <br>> Did you say you may have a converter for Hall Sensor pulse train output? <br>> <br>> Please let me know a.s.a.p. if you can help with some hardware. Otherwise I'll look for a compatible device... <br>> <br>> Thanks, <br>> <br>> Scot Spiegel <br>> Sr. Technologist / Designer <br>> Physics / Hall D <br>> JSA Jefferson Lab <br>> 12000 Jefferson Ave. <br>> Bldg. 55 Rm. 1546-24 <br>> Newport News, VA. 23606 <br>> Ph. 757-536-5900 <br>> Wk. 757-269-5900 <br>> <br>> <br>> From: "Ruben Fair" <rfair@jlab.org> <br>> To: "Scot Spiegel" <spiegel@jlab.org> <br>> Cc: "George Biallas" <biallas@jlab.org>, "Pablo Campero" <campero@jlab.org>, "Joseph Matalevich" <josephm@jlab.org>, "Renuka Rajput-Ghoshal" <renuka@jlab.org> <br>> Sent: Thursday, April 20, 2017 3:05:44 PM <br>> Subject: Re: Readout of the status of the Guard Vacuum Pump <br>> <br>> Thanks Scot. <br>> <br>> As discussed we will have to get a pulse-train converter that converts the pulse frequency to a proportional voltage output that we can then feed into the PLC. <br>> <br>> Regards <br>> <br>> Ruben <br>> <br>> <br>> <br>> From: "Scot Spiegel" <spiegel@jlab.org> <br>> To: "George Biallas" <biallas@jlab.org>, "Ruben Fair" <rfair@jlab.org> <br>> Cc: "Pablo Campero Rojas" <campero@jlab.org>, "Joseph Matalevich" <josephm@jlab.org>, "Renuka Rajput-Ghoshal" <renuka@jlab.org> <br>> Sent: Thursday, April 20, 2017 2:43:39 PM <br>> Subject: Re: Readout of the status of the Guard Vacuum Pump <br>> <br>> Gents, <br>> <br>> I've powered and adjusted the "NMax" & "Speed" of the MOOG Controller for the Guard Vacuum Pump. The output for the pump speed is a constant 3.069 VDC over the full range of RPMs. <br>> <br>> Best regards, <br>> <br>> Scot Spiegel <br>> Sr. Technologist / Designer <br>> Physics / Hall D <br>> JSA Jefferson Lab <br>> 12000 Jefferson Ave. <br>> Bldg. 55 Rm. 1546-24 <br>> Newport News, VA. 23606 <br>> Ph. 757-536-5900 <br>> Wk. 757-269-5900 <br>> <br>> <br>> From: "George Biallas" <biallas@jlab.org> <br>> To: "Scot Spiegel" <spiegel@jlab.org>, "Renuka Rajput-Ghoshal" <renuka@jlab.org>, "Pablo Campero" <campero@jlab.org> <br>> Cc: "Joseph Matalevich" <josephm@jlab.org>, "Ruben Fair" <rfair@jlab.org> <br>> Sent: Tuesday, April 18, 2017 4:56:26 PM <br>> Subject: Readout of the status of the guard vacuum pump <br>> <br>> Folks, <br>> Joseph Matalevich asks for a new readout. He requests the status of the guard vacuum pump as given by the MOOG motor controller signal contacts +#5 and -#1 on page 3 and on 9 of the Data Sheet I enclose on the Air Squared Pump and its controller. <br>> <br>> Is there a spare module on the PLC for this? <br>> <br>> He is also not aware of where the Guard Vacuum pressure (vacuum) signal is displayed in the control system. <br>> He requests that both the pressure and the pump status be displayed on the Cryo Page. <br>> <br>> We need a new shielded pair to be added from PLC to the vacuum shelf area for this signal. <br>> Let's add it to the vacuum signal festoon. <br>> <br>> <br>> <br>> -- <br>> George H. Biallas P.E. <br>> Suite 402 <br>> Jefferson Lab <br>> 12050 Jefferson Ave. <br>> Newport News VA 23606 <br>> Work: 757 269 7535, <br>> Page: 757 584 7535 <br>> Cell: 757 813 1179 <br>> Home: 757 877 1267<br>> <1756-um007_-en-p.pdf><br></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</div></div></div></div><br></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>