From: Frank Geurts (geurts_at_rice.edu)
Date: Fri Apr 11 2003 - 13:59:41 EDT
W.J. Llope wrote:
> At 10:49 AM -0500 4/11/03, Frank Geurts wrote:
>
>> Bill,
>> i checked the TOFp HV operations pages and they need to be updated
>
>
> right (see msg Tue, 25 Mar 2003 19:56:46 -0600 (CST))...
that referred to TOFr HV ... thanks for reminding me. Here it is:
(http://mac8/~TOF/TOFp/operations/procedures/proc_HVmonitor_tofr.html)
==========================================================
Description:
This is the procedure to start the software that monitors the High
Voltage System for the TOFr tray. The TOFr HV is provided by the CAEN
SY-127 system. Two modules (negative and positive polarity) each control
the two polarities of the A and B bus.
Related Documentation:
1. TOFp Glossary
2. TOFr HV documentation
http://mac8/~TOF/TOFp/operations/modules/hv_tofr.html
Requirements:
1. Notification of TOFp Group.
2. Access to STAR Control Room.
3. STAR Shift Crew Training.
4. Approval of Shift Leader.
Procedure:
A Monitor through STAR Slowcontrols
B Monitor through TOFp terminal access
A1. Use STAR Slowcontrols monitor to check TOFr HV:
"Go to slow controls terminal and click on TOF->TOFrHV->P (see
previously attached JPG) or
open as user "sysuser" an xterminal on sc3.starp and start the TOF
alarm handler "tof_top" (see attached JPG) and click on "TOFr HV
Monitor" (see attached jpg)
A2.
* watch the unix timestamp update (should do so every 1 minute) and
check that the read Voltages are all close to the set voltages. When
currents are too high for more than 1 minute audible Yellow or Red SC
alerts will ring.
B1. Sit in front of the TOFp Control PC, and open a terminal window.
Then ssh to the machine tofpdaq.star (the password is posted at the TOFp
Station in the control room).
B2. Check whether the TOFr HV monitoring daemon is running by typing
"crontab -l" The output should look like this:
[tofp_at_tofpdaq ~]% crontab -l
# DO NOT EDIT THIS FILE - edit the master and reinstall.
# (tofrhv.cron installed on Thu Feb 13 15:33:32 2003)
# (Cron version -- $Id: crontab.c,v 2.13 1994/01/17 03:20:37 vixie Exp $)
#
# TOFr HV monitoring cron job
#
SHELL=/bin/sh
#
# run every minute
* * * * * $HOME/HSCAENETLib-1-3/tofr/tofrhv_mon.sh
if the program (tofrhv_mon.sh) is not running contact TOFp Detector
Experts (tofp_at_physics.rice.edu and/or phone numbers above TOF terminal)
B3. To check the history of readouts use the "tail /data/hv/tofrhv.log"
command. Output typically looks like this:
[tofp_at_tofpdaq ~]% tail /data/hv/tofrhv.log
1048630260 6996 7000 1 1600 7002 7000 0 1600 7000 7000 0 1600
7000 7000 1 1600 Tue Mar 25 17:11:00 2003
1048630320 6994 7000 0 1600 7000 7000 0 1600 6998 7000 0 1600
6998 7000 1 1600 Tue Mar 25 17:12:00 2003
1048630380 6994 7000 1 1600 7000 7000 0 1600 6998 7000 0 1600
6996 7000 1 1600 Tue Mar 25 17:13:00 2003
1048630441 6994 7000 0 1600 7000 7000 0 1600 7000 7000 0 1600
6996 7000 0 1600 Tue Mar 25 17:14:01 2003
1048630500 6994 7000 1 1600 7000 7000 0 1600 6998 7000 0 1600
6998 7000 1 1600 Tue Mar 25 17:15:00 2003
1048630560 6994 7000 1 1600 7000 7000 0 1600 6998 7000 0 1600
6998 7000 0 1600 Tue Mar 25 17:16:00 2003
1048630620 6994 7000 0 1600 7000 7000 0 1600 6998 7000 0 1600
6998 7000 1 1600 Tue Mar 25 17:17:00 2003
1048630680 6994 7000 1 1600 7000 7000 0 1600 6998 7000 0 1600
6998 7000 1 1600 Tue Mar 25 17:18:00 2003
1048630741 6994 7000 0 1600 7000 7000 0 1600 6998 7000 0 1600
6998 7000 0 1600 Tue Mar 25 17:19:01 2003
1048630801 6994 7000 0 1600 7000 7000 0 1600 6998 7000 0 1600
6996 7000 0 1600 Tue Mar 25 17:20:01 2003
where the number represent:
linux-timestamp HVA- (Vread, Vset, Iread/10, Iset/10) HVA+(idem),
HVB-(idem) and HVB+(idem). Voltages are in Volts and currents are in nA
(note that the currents in the log file are divided by 10, so 4 means 40nA)
Check /data/hv/tofrhv.err for (recent) errors or TOFr trips.
[tofp_at_tofpdaq ~]% tail /data/hv/tofrhv.err
HV channels off ... waiting 3min before recovering phase. Thu Apr 10
19:30:00 2003
TOFr HV switched ON
HV channels off ... waiting 3min before recovering phase. Thu Apr 10
21:00:00 2003
TOFr HV switched ON
HV channels off ... waiting 3min before recovering phase. Thu Apr 10
22:22:00 2003
TOFr HV switched ON
Usually the system auto-ramps 3 min after a trip. Contact TOFp Detector
Experts (tofp_at_physics.rice.edu) when the trips occur very frequently
(~1/hr) and do not seem to be related to beam conditions.
Testing:
-none-
Completion:
-none-
=================================================================
>
> anyway, i'll do this in the next couple of hrs.. thanks
> for the updated commands and the gifs...
>
>
>
>
>
>> especially now that we have monitoring capabilities in SC and some
>> procedures are somewhat outdated and can conflict with current
>> procedures.
>>
>> Once you updated the webpages could you recreate the tarbal for
>> tofp.starp.
>>
>> thanks,
>> frank
>>
>>
>> ==> http://mac8/~TOF/TOFp/operations/procedures/proc_HVonoff_tofp.htm
>> * remove procedure item (7), we don't use tofhv-Alarm anymore and
>> don't want any shiftcrew to start it either.
>> * add new item (7a):
>> "Go to slow controls terminal and click on TOF->TOFpHV->P (see
>> attached JPG).
>> or
>> item 7b:
>> open as user "sysuser" an xterminal on sc3.starp and start the TOF
>> alarm handler "tof_top" (see attached JPG) and click on "TOFp Monitor"
>> (see attached jpg)
>> * watch the unix timestamp update (should do so every 10minutes) and
>> check that the Voltage on Branch 0 is about 200V (usually somewhere
>> between 199-201V). All HV read and set values should be non-0. An
>> unfortunate feature of the HV readout cause losses of bits. This may
>> result in "overflowing" readback values of about 2400V. These appear
>> randomly and should typically dissappear after subsequent readouts.
>> If a channel remain below 1200V for a longer period (typically more
>> than 1hr) it might have died and TOFp detector experts should be
>> contacted (tofp_at_physics.rice.edu).
>>
>>
>> ==> http://mac8/~TOF/TOFp/operations/procedures/proc_HVmonitor_tofp.html
>> remove proc.item 3, 4 and 5
>>
>> add new item 3a (same as item 7a and b above)
>>
>> add new item 3b:
>> Alternatively you can check the monitoring daemon on tofpdaq.starp
>> Make sure the monitoring software is running by typing "hvmon status".
>> If the output is "HVMON is not running" then start type "hvmon start"
>> and wait ~45sec and type "hvmon status". This will dump the latest
>> monitoring cycle on the screen:
>>
>> =example=
>>
>> [tofp_at_tofpdaq ~/hvsys]% hvmon status
>> tofhv-Monitor (pid 15170) is running...
>> [54]: 1626/1641V [56]: 1666/1650V
>> monitor : preparing readout [MONITOR @
>> t=105007542testHV : Short circuit test on HV ... passed
>> testHV : power lines <0>:199.6V <1>:3.2V <2>:3V <3>:3V
>> displayPage : Branch <0> status (page 0)
>> [ 2]: 1798/1799V [ 4]!:1399/1718V [ 5]: 1819/1808V
>> [ 7]: 1814/1808V [ 8]: 1629/1619V [ 9]: 1732/1749V
>> [12]: 1526/1551V [13]: 1637/1637V [14]: 1808/1821V
>> [15]: 1698/1700V [16]!:2474/1361V [17]: 1761/1763V
>> [18]: 1951/1930V [21]?:2513/1591V [22]!:2471/1637V
>> [23]: 1539/1537V [24]: 1716/1731V [25]: 1690/1704V
>> [26]!:2030/1713V [27]: 1674/1691V [28]: 1711/1709V
>> [29]: 1758/1754V [31]: 1793/1790V [32]: 1650/1655V
>> [33]: 1642/1664V [34]: 1510/1515V [36]: 1671/1695V
>> [38]?:2463/1573V [40]: 1650/1655V [41]: 1790/1812V
>> [42]: 1830/1840V [43]: 1917/1934V [44]: 1719/1745V
>> [45]: 1925/1934V [47]: 1790/1790V [49]: 1629/1650V
>> [50]: 1668/1664V [52]: 1666/1655V [53]: 1740/1736V
>> [54]: 1626/1641V [56]: 1666/1650V
>>
>>
>>
>> Testing.
>>
>> replace item (4) with this:
>> the exclamation (!) marks indicate a possible problem but might well
>> be the result of random readback problems. Typically they should
>> dissappear in subsequent readouts. If for a particular cell they do
>> not change for a long period (>1hr) contact TOFp Detector Experts
>> (tofp_at_physics.rice.edu). The question mark (?) indicates identified
>> readback problems and can safely be ignored.
>>
>>
>> Attachment converted: Mac8_D:slowcontrols.jpg (JPEG/prvw) (00012548)
>> Attachment converted: Mac8_D:tof_top.jpg (JPEG/prvw) (00012549)
>> Attachment converted: Mac8_D:tofphv.jpg (JPEG/prvw) (0001254A)
>
>
>
This archive was generated by hypermail 2.1.4 : Thu Jul 24 2003 - 00:39:39 EDT