This page is to collect all information about the Slow Controls system.  Old information is saved in this sub page.

Turn-Off/On Procedure

Procedure for turning off and on the slow control rack, in case of planned/unplanned power outage.

Turning Off

1. Make sure all programs about the slow controls (running on the target computer) are stopped.
2. Record which devices are on (and off).
3. Turn off all devices that have a mechanical power switch.
   1. This step might not be necessary since the power cords are unplugged in the next step and thus any surge current during a power outage recovery should not come in.  We need discuss to decide.
4. Unplug the two power cords of the slow control rack.

Turning On

1. Plug the two power cords of the slow control rack.
2. Turn on all devices that have a mechanical power switch.
3. Activate TPG 361 by pressing the "up" button for 5 seconds, until the pressure reading of channel 1 is shown.
4. Wait until the pressure of TPG 361 goes below 1e-3 Torr. — Is the value correct??
5. Activate DCU 600, by pressing the rightmost button. — Is the button correct??

Trouble Shooting

n/a

Expert Alarm

Two types of alarm systems for the target group (not the shifter) are available at present.

1. Regular Passive Alarm with Messaging

• A message is posted on Discord channel "target-alarms".  E-mail is possible also.
• Variables and their alarm limits are listed below.

2. Special Active Alarm with Audio+Color

• "Alarm" in E1039 Data Summary:  https://e906-gat1.fnal.gov/data-summary/e1039/target-par-alarm.php
• Useful in closely monitoring changes of variables, during cool down for example.
• Variables and their alarm limits are given in the page itself.  To add variables or change the default alarm limits, please ask Kenichi.

Software

• Git repository: https://github.com/uva-spin
• Old ones: https://github.com/UVA-LabVIEW-Projects/LabVIEW-Projects & https://github.com/E1039-Collaboration/e1039-target-controls

Device List

Flow

• Drawing about sensor locations: https://docs.google.com/drawings/d/1tOOoeUHOlIiYZZEKrPSB4e7GuGj3c78bpsnPMUKvgos/edit

Pressure

• The table below is for a summary. For a more complete pressure information please visit: https://docs.google.com/spreadsheets/d/1Dh6Y27IiEedgq5waZs8_9CsKKFSGWBRfoOAU4PYjFwM/edit?usp=sharing
• Drawing about sensor locations: https://docs.google.com/drawings/d/16cCaIn4SXTD8Wq2xzqePSZeJITV-1SPnE9UjyXzBx5w/edit

Note about installation:

• The biggest issue is where to put MKS 690 1000 Torr. Ideally it should be close to the 100 Torr one
• Please consult with Dustin to make sure about the final location
• Sensor number 3 (He3) and 8 (Measuring LN2 reservoir) in the google docs and sheets above can not be installed not (waiting pipe/line installation). The rest could be installed
• Sensors number 10 and 11 are LANL sensors. Please consult Misha to make sure which are the correct sensors since in the root, there are several other sensors from oerlikon
• Please consult Ernesto for the current location of sensors and long cables

Item	Location	Notes
9		Already installed
8		Pipe fitting: KF-40 Sensor fitting: 4-VCR Female Flex hose (needed because the gas port of the sensor must not be directed upward) KF40 to KF16 converter : https://locoscience.com/products/kf40-to-kf16-flanges-vacuum-fitting-conical-reducer-adapter KF16 flex hose: https://locoscience.com/products/kf16-flexible-vacuum-bellow-1000mm?_pos=1&_sid=63838aa66&_ss=r KF16 to 4-VCR male : https://www.idealvac.com/Adapter-KF-16-to-4-VCR-Male/pp/P101374
5		Pipe fitting: KF-16 Sensor fitting: 4-VCR Female Adapter: KF-16 to 4-VCR Male https://www.idealvac.com/Adapter-KF-16-to-4-VCR-Male/pp/P101374 Location: towards upside of the white piping (see the left image)
1 & 2		Pipe fitting: 1000Torr (~ $ 470) KF16 to 1/2" swagelok https://www.idealvac.com/Adapter-KF-16-to-12-in-Swagelok/pp/P102086 1/2" OD SS  ($ 270: 20ft) 1/2" to 1/4" reducer: https://products.swagelok.com/en/c/straights/p/SS-400-R-8 1/4" to 4-VCR connector : https://products.swagelok.com/en/c/straights/p/SS-4-VCR-6-400
3	This is He Vapor pressure sensor (MKS 615)	Waiting for piping
6 & 7		6) Separator line from cave should be connected to:        i) Pressure sensor (Need a Tee reducer KF25, KF16)    ii) Mass Flow Controller (in and out are KF25) Tee: https://locoscience.com/products/3-way-tee-kf25-flange-vacuum-fitting Reducer to sensor: https://locoscience.com/products/kf25-to-kf16-flange-conical-reducer-vacuum-adapter 7) LHe vapor line from Magnet Dewar should be connected to:    i) Pressure sensor: Need to identify the converter, need a Tee reducer KF25, KF16  ii) Mass Flor Meter Controller Adapter: https://locoscience.com/products/kf25-flange-to-1-npt-male-vacuum-fitting-adapter Tee: https://locoscience.com/products/3-way-tee-kf25-flange-vacuum-fitting Reducer to sensor: https://locoscience.com/products/kf25-to-kf16-flange-conical-reducer-vacuum-adapter flex hose: https://www.amazon.com/ISO-KF-Corrugated-Bellow-Aluminum-Centering/dp/B09QGWGM2W (Qty 4) MFC (this is KF25) flex hose from MFC Reducer KF40 to KF25 https://locoscience.com/products/kf40-kf25-flange-vacuum-fitting-reducer-adapter Also, need a count of various converters we already have. KF25-KF16, KF16-KF40, KF25-KF40
		Fermilab Tech will help us install this one
10 & 11		LANL sensors. Check with Misha
4 (AUX)		MKS 722B (cylinder silver) seen in the photo has been moved to the roots pump area for #5. TPR 280 will be place for #4 (AUX).  We need a longer cable.

Temperature

• Drawing about sensor locations:  https://docs.google.com/drawings/d/1GqKY_9TjaVcJRM2lM2pf_QPTJEXJiqYSX4lqnYAeNM0/edit
  • Old version:  https://docs.google.com/drawings/d/1c_QUxwmyqHE4M3oXTLWR50RxG7F-Zl6y2h9EEIfEYPY/edit
• For the annealing system we should have the analogue setup be entirely independent of the other system, this will require 4 sensors. Two for the Waqar system and 2 for the Henery system, if possible.
• All other, ~20 sensors should be setup with the same type of DAQ that Kenichi is testing unless we determine it is not suitable regarding temperature dependent error. The error budgets are different for several of these, but Magnet coils is by far the most critical low relative error requirement. So, if it looks like this setup will work there it will work everywhere.

Cryo Control Panel: CCP

• Repository:  https://github.com/uva-spin/e1039-target-controls/tree/master/Cryo-Control
  • The latest version should be found in a development branch.
• Conditions of devices & VIs expected for the FNAL review in early April?
  • Focus on the basic readouts and controls, given the time frame (10 days).
  • The expected condition of each device is proposed in the table below.
  • Functions not expected?
    • Automated control
    • Readout logging
    • Warning system

• List of devices to be included

  Controller	Sensor	Interface	Controller+sensor ready?	Standalone VIs ready?	VIs integrated into CCP?	Condition for FNAL Review?
  THCD 400	2 x HFC + HFM	RS-232	Yes	Yes	Yes	Auto-read the three sensors at 1 Hz. Change the set point of two HFCs manually.
  AMI 1700	LHe4 level probe	RS-232	Yes	n/a	Yes	Auto-read the He level at 1 Hz.
  Run valve	Motor driver: AM ST5-S ADC: MCC USB-202	RS-232 USB	Yes Yes	n/a	Yes	Auto-read the motor position at 1 Hz. Move the motor manually.
  Bypass valve	Motor driver: AM ST5-S ADC: MCC USB-202	RS-232 USB	Yes Yes	n/a	Yes	Same as the run valve.
  MKS 670	MKS 690 (100 Torr)	GPIB	Yes+No (*2)	n/a	Yes	Auto-read the sensor at 1 Hz (w/o sensor).
  MKS 670	MKS 690 (1000 Torr)	RS-232	Yes	Yes	Yes	Auto-read the sensor at 1 Hz.
  MKS 670	MKS 615	GPIB	Yes+No (*3)	n/a	Yes	Auto-read the sensor at 1 Hz (w/o sensor).
  MKS 946	2 x MKS 722	RS-232	Yes	Yes	Yes	Auto-read the two sensors at 1 Hz.
  MaxiGauge	5 x Pfeiffer Vacuum TPR 280	RS-232?	Yes	Yes	Yes	Auto-read the five sensors at 1 Hz.

  • The readiness in the table considers the development of CCP, not the final configuration for the commissioning and data taking.
  • *2: A long cable is needed.  Waqar plans to make it soon.
  • *3: Where should we place MKS 615 (the blus box)?  The present cable from MKS 615 to the probe is of 1 m, which seems too short in terms of the radiation damage.  Longer cable are needed accordingly. 

Slow Control Rack + Magnet Rack Readiness Checklist:

This is table contain the status of the slow control rack and magnet rack: RackStatusApril2022.xlsx 

Some (Not all) priority:

1. Test the VI for the Lakeshore
2. Install remaining pressure sensors (See the table above about pressure sensor list)
3. Install remaining Temperature sensors and readout (See the table above)
4. Install the He and N2 Level probe connected to AMI1700
5. Fixing the VI for MaxiGauge and Flow meter LCW
6. Fix the Shim power supply relay
7. Test the new AMI1700, the VI and the Voltage current converter box

Meeting Materials