Trolley Operation Manual » History » Version 17

Version 16 (Ran Hong, 05/07/2019 10:57 PM) → Version 17/137 (Ran Hong, 05/07/2019 11:02 PM)

h1. Trolley Operation Manual

h2. Important Notes

* **Do not operate the trolley unless you are trained**
* **Make sure the RWP for the hall access is signed (need to sign every month), also make sure you have read and signed the JHA for doing the trolley checklist.**
* **Wear dosimetry badge when going into the ring to do the trolley checklist**
* **Need 2 people to go into the ring for trolley checklist (MR region requirement: need two people to access MR region)**
* If anything strange happens to other systems during a trolley run such as Quad spark, abort the trolley run right away and call RC
* Trolley abort switches off the trolley motor so we have to turn it on before clicking on the trolley motion switch again
* Alarm: Cannot disable by clicking reset. First go to the "Trolley Control Page" from the Midas Status Page, and click the "Reset Alarms" button, and then reset the Midas Alarm. Do not ignore any alarms!
* If something strange happens to the trolley system (unexpected trolley alarm, etc.) abort trolley motion and contact a trolley expert right away (Ran & Simon)

h2. Trolley Check List (Activities in the ring are marked as **Bold**)

* Keep the main DAQ run untouched.
* Fill out the electronic trolley check list (in the Fermilab ELog drop down menu). Check each entry in the checklist and attach screenshots (or pictures using phone) for the Kicker GUI, Quad GUI, Collimator control, FiberHarp control and Plunging Probe coordinates after checking all of the respective systems as detailed below:
** Beam off and keys to go into the ring:
*** If in controlled access: Call main control room and get 2 keys (1 for yourself and 1 for a shifter, checking out the controlled access key automatically stops the beam). Fill the details in the control access sheet. Get 2 MR keys from person in charge at control room.
*** If not in controlled access (Beam is already off in this case, so get keys for ring access): Get 2 High Bay keys and 2 MR keys from person in charge at control room. (1 for yourself and 1 for a shifter)
*** Hold on to your keys until you finish the trolley run
** Quads off: Go to quads GUI. Set voltage to zero and pulse it at Burst mode. Make sure the voltage is coming down. Stop pulsing when voltage is atleast below 50 Volts(Note: Values are in KV on the GUI, It might take some time to come down to 50 volts so you can proceed with the rest of the checklist and stop pulsing before the trolley run).
** Collimator : Main DAQ —> collimator control. On the right side click on retract and wait till status shows retract 1, do one at a time. Make sure the retracted status for all 5 collimators are at 1. Also make sure the demand status is 'retracted' for all collimators. The collimator control front end must be ON. If it cannot be turned on, it indicates that the hardware controller is not powered, and in such case the trolley motion hardware interlock will not be cleared, and a motion trip alarm will be generated when the trolley motion control frontend is switched on.
** Fiber harps: Make sure Fiber harp control is running (green) in the Main DAQ status page. Then , Main DAQ —> Fiber harp control, same procedure as collimator. Make sure retracted status for all 4 are at 1. Also make sure the request rectract status is 1 for all 4. The fiber harp control frontend must be ON. If it cannot be turned on, it indicates that the hardware controller is not powered, and in such case the trolley motion hardware interlock will not be cleared, and a motion trip alarm will be generated when the trolley motion control frontend is switched on. **Also double check if the fiber harps are out in the ring.**
** **IBMS3: Go into the ring and check that the sliver color screw holding the IBMS3 in the retracted position can be seen through the glass window. ( need 2 people present anytime you go into MR region). If retracted, this is what you would see through the IBMS3 glass window.**
** **Plunging probe: Take the MR flash light from the MR-cabinet and make sure the plunging probe is out of the way for trolley by looking through the glass flange ( replace the aluminum foil on the flange when done).** Also check Plunging Probe Control Page in the field DAQ and make sure (x,y,z) = (-4005±10, 792±10, 543±5 )
** **Kicker Magnetometer: Make sure the kicker magneometer is in the retrated position and held with rods and cable ties. (The kicker magnetometer is located just to the right of Bazooka 1. Lift up the insulation from the Velcro at the bottom to see the kicker magnetometer, and reattach the insulation after checking )**
* Get "Approval" from Run Coordinator on the checklist (If RC is not available at the control room, call for a verbal confirmation).
* Post a fermi elog saying that you finished trolley checklist and you are starting the trolley run
* Start a new UW elog for this trolley run, here is an example "UW Elog":

h2. General Instructions for Trolley Motion Control

* For trolley runs, we start new Field DAQ runs for each stage.
* Important Azimuth Positions: **Drive CW: 262 deg, Garage: 175 deg, Drive CCW: -98 deg**
* The trolley cannot pass the drive position (262 deg/-98 deg)
* Turn on Gail control and trolley interface under programs and also power cycle trolley DQM. Everything except plunging probe & Plunging probe DQM are generally turned on.
* Open "Trolley Control Page" from the Midas Status page in another screen
* Make sure tension is below 3
* Make sure Trolley Motor Forward and backward limit status is at 1. If any one of them is zero, the trolley motion alarm will trip, and all motors are turned off.
* Make sure the field configuration is consistent with the daily run plan: right surface coil and ps-feedback set point.
* Be familiar with the Alarm handling.

h2. Normal Trolley Run Operation

h3. Trolley Insertion into the Storage Ring

* Start the run, use “Trolley insertion from the Garage” as comment.
* Click Trolley ON and Garage ON. The motor control will show that they are ON
* Camera: after entering kerberos, ssh newg2@g2field-fe1 , login and enter cheese. Here is how the trolley looks through camera
* Click on Garage Insert trolley: Limit switch will become 1 for Garage forward and velocity will be above zero ( It will take about 5 minutes for the trolley to fully insert)
* DQM will show steps in cable position under Motion section of the trolley DQM page (g2field-be:3335 on the field station)
* When the trolley is fully inserted: Garge velocity will read zero and Reverse limit status of Garage will read zero ( limit switch might not read zero all the time)
* Turn off garage. Garage encoder count should be less than 1000.
* Stop the Run.

h3. Garage to Drive CW

* Start the Run with comment “Trolley run to Drive CW”. After the run starts, click on “Trly. To Drive CW “ button
* Check DQM for FIDs (make sure they are updating), Position, Barcode etc. to make sure everything is fine. Keep an eye on ps-feedback DQM ((g2field-be:3336 on the field station) and make sure the mean field is with in the green bands.
* It will stop at around 262.4 degrees. Velocity will read zero. Record the azimuthal position of where the trolley stopped, in the UW Elog.
* Once the trolley is within ~2deg of the drive the barcode DQM (http://g2field-be:3335/trolleyBarcode) starts to display "Barcode Drive Abs 1" and "Abs 2".
* Check on the trolley barcode DQM (http://g2field-be:3335/trolleyBarcode) that you see the structure highlighted in the following picture plus one abs barcode with atleast 4 peaks down in "Barcode Drive Abs 1"
If not move manually closer in very small steps of 0.005 (Manual Motion Control: Trolley (Rel. Deg) ).
* Take a screenshot of this barcode DQM page and attach it to the trolley run ELOG.
* Stop the Run

h2. Trouble Shooting and Emergency Response