<html><body><div style="font-family: arial, helvetica, sans-serif; font-size: 12pt; color: #000000"><div>Hello Ruben,</div><div><br data-mce-bogus="1"></div><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><div><br data-mce-bogus="1"></div><div>Best Regards</div><div>Pablo</div><div><br></div><hr id="zwchr" data-marker="__DIVIDER__"><div data-marker="__HEADERS__"><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><div><br></div><div data-marker="__QUOTED_TEXT__">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></body></html>