This document is intended to be used as both instructions and as a checklist for
lowering the cyclotron lid via the operation of the elevating system.
The author assumes that anyone using these instructions has a basic knowledge of the location and operation of the devices mentioned herein and is familiar with the methods required to perform each step.
Originally prepared by : Gord Roy, 24 March 1994 - Revision 00, 01 Oct 1997
1. LOWERING CYCLOTRON LID
2. SPECIAL INSTRUCTIONS
4. TROUBLE SHOOTING GUIDE
4.1 BYPASSING CENTRAL SAFETY SYSTEM INTERLOCKS
4.x more sections to follow .....
1. LOWERING CYCLOTRON LID
1.0 INITIAL PREPARATION
Before proceeding, checks should be made to see if there are any special instructions,
requests or Blue Book notes etc. in effect.
Obtain the Elevating System Keys (Ops # 1 & 2) and a copy of the Elevating System checklist.
SAFETY SYSTEM - CSS DISPLAY , INTERLOCKS :
[ ] Push the "Enable P.B." on the C.S.S. Elevating System Interface box or the mimic panel
above the Elevating System control rack.
If all the interlocks are satisfied the "Enabled" LED will light, the status on the C.S.S. display page will change from "DISABLED" (red)
to "ENABLED" (green) and the red "VAC" (external interlocks) light on the Elevating System Control Centre will go out (if power was on).
Note : If it is determined that any of the above interlocks has to be bypassed, see section 4.1.
FURTHER CHECKS :
1.1 PROCEDURE SEE NEW DOCUMENT FOLLOWING
" MAGNET ELEVATING CONTROL SYSTEM "
READY : Push and hold the "LOWER" button for five seconds.....
more When the elevating system is running, make continual checks of all "moving parts". Walk around and listen to for any unusual noises from the jacks and other sources.
Check the ISIS level and ontop the lid. Check that come... the braided S.S. cooling and air lines are not interfering with anything.
One person must stay near the pendant so as to be able to stop the system as quickly as possible if it is deemed necessary.
1.2 AFTER THE LID IS DOWN :
2. SPECIAL INSTRUCTIONS
2.1 RESONATORS : LATCHING / UNLATCHING
At this time the R.F. Group will take care of latching and unlatching. Operations should assist with items such as :
a, periscopes :
raising / lowering
b, confirmation of unlatched/latched signals
LATCH : by turing the tool Counter Clock Wise
UNLATCH : by turing the tool Clock Wise
2.2 ALIGNMENT OF THE FLUX GUIDE TULIPS
2.3 MOTOR CURRENT DATA ACQUISITION PROGRAM : VAX SYSTEM
2.4 INFLECTOR : RAISING / LOWERING
The Inflector/Deflector assembly is raised and lowered by a motor and gear mechanism located in the
vault basement on the South side of the cyclotron
centre support structure. The motor is controlled via an 0446/1 controller at the East side of the structure. The controller has a local/remote switch, four
buttons with associated large lamps and two small lamps. The definitions are :
BUTTON FUNCTION LAMP INDICATION
Yellow : stop motor large Yellow : power on
Green : start motor large Green : motor running
White : select raise large White : raise selected
Blue : select lower large Blue : lower selected
small blue : at REV ( lower ) limit
small white : at FWD ( upper ) limit
2.5 Al-ALCW WATER SYSTEM SHUTDOWN
Check if the Main Magnet booster pump (ME-7) is off. If yes go to 3, otherwise 1.
2.6 MAIN MAGNET "OFF FOR 30 MINUTES" INTERLOCK
Main Magnet Power Supply control power Must Be ON to provide this signal.
The "Main Magnet off for 30 minutes" signal is provided by a switch located in the Main Magnet control
and metering cabinet. This air operated switch labelled
"AGASTAT timing relay" is mounted inside the cabinet high up and to the rear on the left (west) wall beneath the sign "SAFETY MAGNET INTERFACE".
If the control power is left on for thirty minutes after the main magnet is turned off, then this relay will "time out" and correctly provide the "...off 30 min." signal.
However if the control power is not left on the relay will not time out and the signal will not be supplied. In this case turn the control power on, force the relay to
"time out" by rotating the setpoint dial (engraved black dial on top) to ZERO. Once this is done the dial can and must be to set back to 30 minutes.
If the control power is off or the above does not work, then the signal will need to be bypassed. This can be done in one of two places :
2.7 MAIN MAGNET POWER SUPPLY WATER FLOW SHUT OFF
Do this 30 minutes after the magnet was turned off. Check CSS Elevating System page for confirmation
of " Off 30 minutes ". Close supply valve ( S ) to the M. Mag.
power supply ( north of M.Mag P.S. control cabinet ). Adjust the Cu-LCW system ( RF floor ) pressure to 100 psi using valve A-8 on pump ME-14.
2.8 HE3 PROBE : REMOVAL / INSTALLATION
2.9 SPILL MONITOR HIGH VOLTAGE
The high voltage for the cyclotron tank spill monitors must be switched off for both equipment and
personnel safety. The power supplies are a double width "J&P" NIM
module type NM121D. It is located in second NIM bin from the top of rack 4A on S.A. level 264. The module is labelled HIGH VOLTAGE SUPPLY.
There are two toggle switches labelled ON and OFF, just above the two output cables. These ON/OFF switches are correctly labelled, but their action is the reverse of normal.
UP is OFF , DOWN is ON ! Ensure that the switches are in the correct position for the desired state.
2.XX More instructions for other systems
The Triumf cyclotron elevating system is used to raise the top half of the cyclotron four feet to allow access to the interior of the cyclotron tank.
The elevating system consists of twenty four screw jacks arranged in twelve pairs. Each jack screw is driven by a worm gear
with a gear ratio of _____ to one.
Each screw jack worm gear is driven by another worm gearset (Highfield) with a sixty to one gear ratio. Each pair of Highfield gearsets is driven by one double-ended
twenty horsepower electric motor. Each motor is equipped with an electrically operated amarture brake.
One of each pair of screw jacks is connected to a mechanical counter and phase translator. The mechanical counter
reads out the height of the jack in inches.
The phase translator sends a signal to the elevating control system where it is compared with a master servo reference signal. The control system determines
if the motor should be ON or OFF during the lifting/lowering cycle depending on the relative position of the jack and reference. The reference moves at a rate of 0.025"/sec
while the jacks move at 0.030"/sec. Therefore the motors are constantly being cycled on and off to keep the entire system in alignment.
The range from fully down to full up is about four feet, 0.165" - 47.506" as indicated by the master synchro
counter. Full travel takes about 27 minutes.
MUCH MORE TO BE WRITTEN .....
4. TROUBLE SHOOTING GUIDE
4.1 BYPASSING C.S.S. INTERLOCKS
This procedure should only be carried out by the Shift Supervisor or designate and only when one hundred percent
confident that the interlock condition is satisfied, but is not indicating correctly.
On level 264 locate the C.S.S. Elevating System Interface box which is mounted in the top of the east side of the safety rack that is located near the west staircase.
Internally there are three rows of components. From the east side rows one and two are the signal relays. Row three
is two 24 terminal fast-on strips for the relay coil connections.
The east strip is the individual coil connections andv the west strip is the common coils buss.
Use this guide to determine which terminals are associated with which interlocks. The terminals are numbered from
south to north. To bypass an interlock, use a jumper wire to connect
the appropriate terminal on the east strip to any terminal of the west strip.
If the interlocks are all satisfied then pushing the "Enable P.B." will cause the enabled LED to light and the status
on the C.S.S. display page will change from "DISABLED" (red) to "ENABLED" (green).
|TERM #||WIRE COLOUR||INTERLOCK DESCRIPTION|
|3||red||Vacuum tank pressure >10**-6|
|4||orange||vacuum tank at atmosphere|
|5||yellow||Main Magnet OFF for 30 minutes|
|6||green||LE1 , LE2 , HE1 , HE2 beam probes OUT|
|7||blue||Main Magnet OFF|
|8||violet||Al-ALCW water pressure OFF|
|9||grey||ISIS Vertical Removable Section OUT|
|10||white||R. F. OFF|
|11||brown||R.F. resonators ALL UNLATCHED|
|12||red||Extraction probe # 1 parked at less than 48"|
|13||orange||Extraction probe # 4 parked at less than 48"|
|14||yellow||Vault circular crane parked at jack # 12|
4.2 VACUUM TANK AT ATMOSPHERE SWITCH
As it is difficult to determine the difference between at atmosphere and under just a few mm of vacuum this switch
does not operate 100% reliably and may have to be
attended to in order to get it to read at atmosphere correctly.
This switch is located in lower valley 6, on port IB, near the middle of the valley, between LQ2 and LQ3 resonator
#6 tip drives. The switch is in a 4" diameter 1.5" thick
grey enclosure labelled "Edwards Vacuum Switch VSK.1.B." on the bottom side. A 1/4" diameter 4" long tube extends out of the top of the enclosure up to the port flange.
A gentle tap on the enclosure is often enough to result in this switch indicating correctly. Do not bypass this switch unless a latching port cover has already been removed,
thus ensuring that the tank is at atmosphere.