Hello Suvrajit,
Just to follow up on Sameer's point about the power supplied to the console:
if you do already have a UPS, do not assume that it is necessarily supplying the
required voltage.
Many years ago I had a console that was blowing a fuse on an all too
regular basis. When I checked the voltage being supplied by the
somewhat old UPS, I found it was only delivering 195VAC instead of the
expected 208VAC. I replaced that old UPS, and no more blown fuses.
In principle, the fuses are there to protect the more expensive
electronics. However, your supply voltage may be on the edge. Not so
low to cause a fuse to blow, but low enough that running for a prolonged
period causes excess wear on the electrical components in your PSMS/3.
So it is worthwhile to check that. You don't want to repair the
problem, only to have it happen again because you haven't addressed the
root cause.
Good luck,
Bob.
On 2024-06-18 9:16 p.m., Sameer Al-Abdul-Wahid via groups.io wrote:
>
>
> Hi Suvrajit,
>
> If the LED is off, the PSM3 is the proximate cause and must be
> fixed/replaced first. We recently repaired one of our PSM3 boards: one
> of the two 12V LT1083CP regulators was dead and needed to be replaced.
> We also replaced all the electrolytic capacitors at the same time as
> they can fail over time.
>
> To rule out the possibility of bad incoming power damaging the PSM3
> again, you may want to measure the voltage supplied to the console and
> ensure it is in the ranges set on the AQS and BSMS power supply
> selector switches. If the console does not have a UPS, you might
> consider one – in addition to riding out short outages, they ensure a
> stable supply voltage.
>
> Do you know if the previous fuse was blown or intact? If it was blown,
> then the new fuse almost certainly blown too.
>
> Best regards,
>
> Sameer
>
> P.S. Below are the voltages we measured on our board. And the
> perfunctory disclaimer: these measurements require the board to be
> energized and should only be done by qualified personnel.
>
> --
>
> *Sameer Al-Abdul-Wahid*, Ph.D. *|* Manager
>
> Nuclear Magnetic Resonance Centre *|* University of Guelph
>
> 519-824-4120 ext. 58914 *|* s.wahid_at_uoguelph.ca
>
> http://nmr.uoguelph.ca/
>
> *From: *main_at_ammrl.groups.io <main_at_ammrl.groups.io> on behalf of
> Suvrajit Sengupta <suvrajis_at_uci.edu>
> *Date: *Tuesday, June 18, 2024 at 18:41
> *To: *main_at_ammrl.groups.io <main_at_ammrl.groups.io>
> *Subject: *[AMMRL] Avance Console Fails on acquisition #Bruker #Hardware
>
> Our Avance 600MHz spectrometer started to give errors on acquisition
> commands. The system locks, but fails on zg , wobb, and ii commands
> with various aqrackserver exceptions. The +9V LED on the PSM3 is not
> lit. I tried replacing fuse 4 in the PSM3 module, but the LED is still
> off. I have tried restarting the console, doing cf, ii, etc but the
> errors are still there. The PSM3 on this spectrometer had failed
> before (predating my time here). Is this a failure of the PSM3 module
> or is something else going on, like a communication issue? The error
> messages we received are as follows:
>
> 1. On executing zg command>
>
> Error during BirdRack flush:
> Error in flush():
> aqrackserver exception:
> Error in "flush": Cannot disable observe for Sgu: Error 140 in RX_1:BH
> SLOT 2 RACK 1:Power diagnostic failed
>
> 2. On executing wobb command>
>
> Warning: cannot put RXS-1 asleep:
> (Error in sleep: Error in sleepRXS():
> aqrackserver exception:
> sbsb error in "sleepRXS": Error 140 in RX_1: AW SLOT 2 RACK 1: Power
> diagnostic failed)
> Wobble curve may show spikes
>
> 3. On executing ii command>
>
> Error during BirdRack flush:
> Error in flush():
> aqrackserver exception:
> sbsb error in "flush": Error 211 in ROU1: BH SLOT 8 RACK 1: No l2c
> acknowledge received
>
> I would greatly appreciate it if the AMMRL community could provide
> some guidance about this. Also, if it is a PSM3 issue, is anybody
> willing to part with a spare they might have?
>
> Thanks,
> ~Suv
>
> Suvrajit Sengupta
> Director of NMR Facilities
> University of California, Irvine
> Irvine, CA 92697, USA
>
>
--
Dr. Bob Berno
Manager, NMR Facility
McMaster University, ABB-156
1280 Main St. West
Hamilton, ON L8S 4M1
T: 905-525-9140 x24158 or x24686
---------------------------------------------------------------------------
This email contains CONFIDENTIAL information intended for the specific recipient(s).
If you have an accommodation need for a planned meeting, please e-mail me directly and
I will do my best to make appropriate arrangements.
Should you require any materials sent via this e-mail address in an alternate/accessible
format, please let me know.
McMaster University sits on the traditional Territories of the Mississauga and
Haudenosaunee Nations, and within the lands protected by the "Dish With One Spoon"
wampum agreement.
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#1350): https://urldefense.com/v3/__https://ammrl.groups=
.io/g/main/message/1350__;!!PvDODwlR4mBZyAb0!VZ3Xm94kmfgcWQqXoFb6EtkM6i17oK=
1FZqypd-Fd3_ftCYjiMllWegf8iGMBsVPxk_hEjyV3wjxNyTr7$
Mute This Topic: https://urldefense.com/v3/__https://groups.io/mt/106750944=
/7559972__;!!PvDODwlR4mBZyAb0!VZ3Xm94kmfgcWQqXoFb6EtkM6i17oK1FZqypd-Fd3_ftC=
YjiMllWegf8iGMBsVPxk_hEjyV3wibpvoiP$
Mute #bruker:
https://urldefense.com/v3/__https://ammrl.groups.io/g/main/mut=
ehashtag/bruker__;!!PvDODwlR4mBZyAb0!VZ3Xm94kmfgcWQqXoFb6EtkM6i17oK1FZqypd-=
Fd3_ftCYjiMllWegf8iGMBsVPxk_hEjyV3wklUaAfe$
Mute #hardware:
https://urldefense.com/v3/__https://ammrl.groups.io/g/main/m=
utehashtag/hardware__;!!PvDODwlR4mBZyAb0!VZ3Xm94kmfgcWQqXoFb6EtkM6i17oK1FZq=
ypd-Fd3_ftCYjiMllWegf8iGMBsVPxk_hEjyV3wvZjjW2r$
Group Owner: main+owner_at_ammrl.groups.io
-=-=-=-=-=-=-=-=-=-=-=-
Received on Wed Jun 19 2024 - 06:18:23 MST