MICE Muon Beam: Conventional Magnet Power Supplies
Contents
1. and time 2 Strike out magnets that will not be used 3 Check water flow to magnet is greater than minimum i Compare meter readings to the reference values given on the magnet check list These values are handbook minima for the flow through Q1 Q3 D1 and D2 and measured minima for Q4 Q9 It is necessary to do this manually at the location of the meters in the Hall See Appendix 3 for the locations of the flow meters 4 Check that the water flow to the magnet power supplies is within set limits i The power supply water flow monitoring gauges are located on the North wall of the trench beginning at the eastern most end of the trench Check to make sure that the orange float is between the two orange limits on the tube for each magnet power supply 4 If changes have been made recently then the magnet power supply polarity MGT PS polarity must be checked at the back of the power supply Ask the MOM about recent beamline configurations 1 With power supply OFF open the back of the power supply The wiring convention is e For positive particles the positive lead should be connected to the positive terminal and the negative lead to the negative terminal e For negative particles the negative lead should be connected to the positive terminal and the positive lead to the negative terminal See MICE Note 198 for further details 5 Check that all interlocks on the power supply are cleared PS Interlocks column on check l2. does not clear interlock alarm contact MOM c Once interlocks cleared proceed to 2 vii vil Set power supply to remote control a Select CMD b Select REM From the Application Launcher on the Magnet Control PC in the MLCR i From the main menu panel click Magnet Power Supplies li Either select the power supply you want to operate or select All A panel will appear with the name of the power supply at the top or if All was selected a list of all magnets See Appendix 2 if the panel is in black white and not operational This panel contains Status and Control boxes The control box lets you control the supply The status box e Tells you the current and voltage for the power supply e The green LED will be bright if the power is on e The red LED will be bright if any interlocks are tripped iii To turn the supply on or off select the Power button To turn on the power supply select On to turn it off click Off iv To set the current type a number into the blue Output Current box and hit Enter or Return If the supply has tripped click the brown Status button at the bottom This will bring up a larger panel showing all the status information The red LEDs on the left show the current state of the latched interlocks The yellow LEDs show the state at the time the trip occurred e Click the blue Reset button to reset the interlocks Turning off Gradually redu
3. ED on the front panel should blink If not reset the unit by switching OFF ON o F J The communications computer in the power supply rack may also need to be initialised To do this start a Terminal window on the MICECON1 PC in the MICE LCR and type the following telnet micets4 7001 lt return gt lt return gt Ctrl x after which VxWorks will boot on the remote computer and issue many messages which may be ignored and the Terminal window closed Version 3 1 D M Kaplan amp K Long amp L Coney 26 September 2011 6 Appendix 3 Location of water flow meters for magnets amp power supplies rate D1 Q1 3 Within cage D1 gt 22 m If flow too low Mgts entrance to Q1 2 3 gt 25 1 m contact J Govans DSA CES i nT extn 1804 or from Cae o s ISIS MCR D2 Q4 9 In 2 boxes in D2 gt 22 m 3 If flow too low Mgts the water Q456 gt 23 I m lt A adjust yellow mene Q7 8 9 gt 23 I m i levers on both flow opposite to f ngi amp return see on entry staircase oe both photos Version 3 1 D M Kaplan amp K Long amp L Coney 26 September 2011 T All power In the water Flow meters i soy Be k If flow too low supplies trench at far between the marks a i ev check yellow red end near the ome a valve open Also m 3 check disc valve synchrotron wall and _ open around the entry staircase
4. Version 3 1 D M Kaplan amp K Long amp L Coney 26 September 2011 1 MICE Muon Beam Conventional Magnet Power Supplies Operating Instructions Preconditions 1 5 Method statement and risk assessment agreed by Hall Manager Principal Contractor and or MOM Authorisation to work obtained Keys to magnet power supplies that will be operated obtained from MICE Hall Manager Principal Contractor or MOM Area around magnet power supplies and magnets appropriately signed and fenced off Magnet Control PC in MICE Local Control Room must be booted up User ID password available on the MICO Passwords page Magnet check list must be completed see below Magnet power supply operating instructions Powering up 1 Turn on Q4 Q5 Q6 Q7 Q8 Q9 D1 and D2 power supplies i Remove padlock from power supply breaker and turn supply on see Appendix 1 for locations of the power supplies a convenient place to store the lock while it is not in use is on top of the supply rack li Twist Emergency Off button so that button springs out into enable position iv Using power supply controls a If interlock warning LED is lit identify and reset any interlock warnings Select Intl b Select Internal and External and record interlock condition Press Reset If this does not clear interlock alarm contact MOM c Once interlocks cleared proceed to 1 v v Set power supply to remote control
5. a Select CMD b Select REM Turn on Q1 Q2 and Q3 see Appendix 1 for locations of the power supplies The power supplies for Q1 Q2 and Q3 are different from the others They are grouped together in one rack There are 4 orange clips holding breaker switches off at the bottom of the rack in a column of switches It is important to remember where the orange clips are located and only turn those switches off after running I Remove padlock from orange clips in column of switches on right side at bottom of rack li Note positions of 4 orange clips and remove them Place clips and padlock on top of power supply to the left of the rack 1 William Spensley William Spensley meritpe co uk RAL ext 5879 mobile 44 0 7970847021 mice om rl ac uk RAL ext 8188 mobile 44 0 7789272992 Version 3 1 D M Kaplan amp K Long amp L Coney 26 September 2011 2 iii Flip 4 switches at bottom of rack to ON position iv On each individual power supply there are an additional 3 switches oriented horizontally Flip these up into the ON position v Twist the Emergency Off red button located above the three power supplies so that it springs out into the enable position Push the green reset button vi Using power supply controls a If interlock warning LED is lit identify and reset any interlock warnings Select Intl b Select Internal and External and record interlock condition Press Reset If this
6. ce the current to 0 using the control programme on the Magnet Control PC 1 Turn the power supply off at the Magnet Control PC Go to the power supply in the MICE Hall and for Q4 9 D1 and D2 i Set the power supply to Local a Select CMD then Local li Press the Emergency off button iii Set the circuit breaker to OFF Version 3 1 D M Kaplan amp K Long amp L Coney 26 September 2011 3 iv Lock the circuit breaker in the OFF position 3 Again the power supplies for Q1 Q2 and Q3 are different from the others It is important to remember where the orange clips are located and only turn those switches off after running i Set the power supply to Local for each of the three supplies in the rack a Select CMD then Local li Press the Emergency off button located above the three power supplies iii Flip the 3 horizontal switches located on each power supply down to the OFF position iv On the column of switches at the bottom of the rack on the right side working from the top down flip ONLY the first 3 switches and the 5 switch from the top to the OFF position v Replace the orange clips in these 4 switches vi Put padlock through first 3 clips and lock 4 Return the magnet power supply key to the MICE Hall Manager Principal Contractor or MOM Completing magnet power supply check list 1 Obtain magnet check list from folder in MLCR fill in name name of MOM date
7. ist Instructions to clear interlocks are given above If the water flow interlock on it may be necessary to adjust the water flow manually contact the MOM 6 Check that the control from the Magnet Control PC in the MLCR is available MLCR CTRL on the check list 7 Finally if all magnet conditions are OK tick the magnet OK box on the check list Version 3 1 D M Kaplan amp K Long amp L Coney 26 September 2011 4 Appendix 1 Location of the power supplies in the MICE Hall Q1 2 0 in a single rack behind the staircase to the second floor North East corner aE mn SS m E sm a UEa SS Ss e m H Rack with Q1 2 3 Note that the orange locking tabs must be removed in order to turn on the supplies remote control D1 2 and Q4 9 along the North wall of the MICE Hall Version 3 1 D M Kaplan amp K Long amp L Coney 26 September 2011 5 Appendix 2 Problems with the remote control from the PC miceopi1 Check the status of the remote control unit and its communication with the PC miceopi1 locate the remote control unit in the rack with power supplies for Q1 2 3 see Appendix 1 open its rear door key available in the key press at the North West corner of the hall and locate the communication unit see photo The LEDs should blink indicating data transfer If not reset the power of the unit by pressing the red and then the black buttons on the power socket see photo the two red L
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