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turning_magnets_on_off [2014/12/05 20:04]
pereira [Set S800 magnets settings] 		turning_magnets_on_off [2015/10/19 15:23]
pereira
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 ===== Turn on S800 magnets power supply ===== ===== Turn on S800 magnets power supply =====
 +  * **Troubleshooting**: if a power supply cannot be turned on from PanelMate, check that the power supply module is ON. The modules for all S800 magnets are located in the S3 vault on the middle level under the stairs to the top level (see figure below). If all the modules seem to be running properly, but the problem persists, contact the operators in Control Room, ext. 305.
 +
 +{{:wiki:power-supply-magnets.jpg?450|Power supply modules}} 
 +
  
   * Open the NCS PanelMate application and load file **THallps.ui**, in directory \\exp\files\control\ncsdata\General\Qt\Templates.   * Open the NCS PanelMate application and load file **THallps.ui**, in directory \\exp\files\control\ncsdata\General\Qt\Templates.
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   * Go to page 7 and select the steering magnets: **I170DH, I197DH, I231DH**. Note that some of the power supplies are connected to more than one steering magnet. If necessary, disable the steering magnet of the other line and enable the correct one.    * Go to page 7 and select the steering magnets: **I170DH, I197DH, I231DH**. Note that some of the power supplies are connected to more than one steering magnet. If necessary, disable the steering magnet of the other line and enable the correct one. 
  
 +{{:wiki:Thallps.jpg?700|PanelMate. File Thallps.ui, page 7}} 
  
-  * The magnet currents corresponding to a given setting are typically set using [[Turning magnets on/off#set S800 magnets settings|Barney]]. However, it is also possible to set them individually for an specific magnet, as explained [[Turning magnets on/off#set S800 magnets settings|here]]. +  * The magnet currents corresponding to a given setting are typically set using [[Turning magnets on/off#set S800 magnets settings|Barney]]. However, it is also possible to set them individually for an specific magnet, as explained [[Turning magnets on/off#Set magnet currents individually|here]]. 
  
  
- 
-{{:wiki:Thallps.jpg?800|PanelMate. File Thallps.ui, page 7}}  
- 
-  * **Troubleshooting**: if a power supply cannot be turned on from PanelMate, check that the power supply module is ON. The modules for all S800 magnets are located in the S3 vault on the middle level under the stairs to the top level (see figure below).  
- 
-{{:wiki:power-supply-magnets.jpg?600|Power supply modules}}  
  
 ===== Set S800 magnets settings ===== ===== Set S800 magnets settings =====
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       * Ensure that the current in the dipoles are properly matched to the desired values (see section on [[NMR probes#Matching|NMR control]])       * Ensure that the current in the dipoles are properly matched to the desired values (see section on [[NMR probes#Matching|NMR control]])
  
-==== Set currents individually ==== +      * Note: The currents in the Trim coils will be set automatically in Barney, once the rigidity in Segment 8 was entered. 
-**NOTE:** The values of currents for the different magnets can be modified individually by clicking the button "details" and selecting the corresponding magnet+ 
 +===== Set magnet currents individually ===== 
 +The values of currents for the different magnets can be modified individually by clicking the button "details" in the Barney page (see upper-right corner in figure above). A list of magnets with their corresponding currents will be displayed as shown in the figure below. To change the current of a given magnet (e.g. I265DS), go to column **Read Amps** and click in the "cell" corresponding to the magnet (see red circle in figure below). A new window will pop-out; enter the new value of the current (e.g. 10 A) and click "Apply".  
  
          
 +{{:wiki:barneys800details.jpg?750|Barney S800 "details" page.}}
  
  
 =====  Turn on the trim coils of the Spectrograph dipoles =====   =====  Turn on the trim coils of the Spectrograph dipoles =====  
 +Note: The following procedure describes how to set the trim-coil currents manually. In principle, it is no longer necessary because Barney sets the currents automatically once the rigidity of segment 8 has been entered.
 +
  
        * Check the currents in the Spectrograph dipoles by looking at the EPICS channels I265DS and I269DS. This can be done e.g. by clicking the button **Details** in segment 8 of the S800 Barney page (see figure below)        * Check the currents in the Spectrograph dipoles by looking at the EPICS channels I265DS and I269DS. This can be done e.g. by clicking the button **Details** in segment 8 of the S800 Barney page (see figure below)
  
-       * The values of the current in each of the two trim coils correspond to about 53% of the currents in the corresponding Spectrograph dipoles       +       * The values of the current in each of the two trim coils correspond to about 43.5% of the currents in the corresponding Spectrograph dipoles       
  
        * Open the NCS application **QTChan**        * Open the NCS application **QTChan**
turning_magnets_on_off.txt · Last modified: 2019/05/15 11:58 by pereira

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