[evlatests] Fwd: Fwd: Re: Generator test Antenna communication outages
Dave Parker
dparker at nrao.edu
Thu Mar 7 08:31:21 EST 2019
Yes but that was just on the 27th of Feb not the 13th so we are just
watching that one for now.
Dave
On 3/6/2019 12:50 PM, Bryan Butler wrote:
>
> Ken's email also noted antenna 27 lost communication. Perhaps Jeff's
> list isn't entirely inclusive?
>
> -Bryan
>
>
> Dave Parker wrote on 3/6/19 12:34:
>>
>> Hello all,
>>
>> Antennas dropping coms is not as bad as first suspected. The monitor
>> points that were used for coms, by me were not good choices. It
>> appears there are six constantly problem antennas them being 6, 8, 10,
>> 14, 15 and 17 according to Jeff Long's email. Jerry Langevin and
>> myself did some work on Antenna 15 on 27 Feb, and Antenna 10 on 4
>> March, we plan on doing checks on Antennas 14 and 17 Monday 11 March
>> and not touching Antennas 6 and 8 to give us an indication if what we
>> are doing is making a major radiance.
>>
>> Jerry and myself removed a test power strip from Antennas 22 and 25
>> that was installed on 4 March sense these antennas have not been
>> having problems.
>>
>> Dave Parker
>>
>> -------- Forwarded Message --------
>> Subject: Fwd: Re: Generator test Antenna communication outages
>> Date: Wed, 6 Mar 2019 07:23:18 -0700
>> From: Dave Parker <dparker at nrao.edu>
>> Organization: NRAO
>> To: Jerry Langevin <jlangevi at nrao.edu>, Jim Jackson
>> <jjackson at aoc.nrao.edu>
>>
>>
>>
>>
>>
>>
>> -------- Forwarded Message --------
>> Subject: Re: Generator test Antenna communication outages
>> Date: Tue, 5 Mar 2019 16:55:10 -0700
>> From: Jeff Long <jlong at nrao.edu>
>> To: Dave Parker (dparker at aoc.nrao.edu) <dparker at aoc.nrao.edu>
>> CC: Ken Sowinski <ksowinsk at aoc.nrao.edu>
>>
>>
>>
>> Interesting, the pdu did not lose power during both generator tests
>> you can see a coldstart on the 4th when it was power cycled.
>>
>> --Jeff L.
>>
>> ea10-pdu logs
>> 03/04/2019 09:37:20 System: Coldstart.
>> 02/25/2019 11:49:20 System: Set Date or Time.
>> 02/11/2019 11:49:19 System: Set Date or Time
>>
>> Date Time I IMax IMin
>> 02/27/2019 09:26:49 1.5 1.5 1.5
>> 02/27/2019 09:16:49 1.5 1.6 1.3
>> 02/27/2019 09:06:49 1.5 1.5 1.5
>>
>>
>>
>>
>> On 03/05/2019 03:23 PM, Jeff Long wrote:
>>> *_Both Generator test days these Antennas were affected 6, 8, 10, 14,
>>> 15, 17._*
>>>
>>> All switches below indicate from up time, that they power cycled
>>> during loss of communication.
>>>
>>> Wed 13th Feb statseeker ping outage to these antennas started at
>>> 9:42am back up at times below and how long ping was down
>>> Note Wed 13th Feb 2019 09:44 EVLA-ant-sw-7 up 0 days 00
>>> hrs 01 min
>>> Note Wed 13th Feb 2019 09:44 EVLA-ant-sw-11 up 0 days 00
>>> hrs 01 min
>>> Note Wed 13th Feb 2019 09:44 EVLA-ant-sw-11b up 0 days 00
>>> hrs 01 min
>>> Note Wed 13th Feb 2019 09:44 EVLA-ant-sw-15b up 0 days 00
>>> hrs 01 min
>>> Note Wed 13th Feb 2019 09:44 EVLA-ant-sw-8b up 0 days 00
>>> hrs 01 min
>>> Note Wed 13th Feb 2019 09:44 EVLA-ant-sw-15 up 0 days 00
>>> hrs 01 min
>>> Note Wed 13th Feb 2019 09:44 EVLA-ant-sw-8 up 0 days 00
>>> hrs 01 min
>>> Note Wed 13th Feb 2019 09:44 EVLA-ant-sw-7b up 0 days 00
>>> hrs 01 min
>>> Note Wed 13th Feb 2019 09:45 EVLA-ant-sw-28 up 0 days 00
>>> hrs 02 mins
>>> Note Wed 13th Feb 2019 09:45 EVLA-ant-sw-28b up 0 days 00
>>> hrs 02 mins
>>> Note Wed 13th Feb 2019 09:45 EVLA-ant-sw-10b up 0 days 00
>>> hrs 02 mins
>>> Note Wed 13th Feb 2019 09:45 EVLA-ant-sw-10 up 0 days 00
>>> hrs 02 mins
>>> Note Wed 13th Feb 2019 09:45 EVLA-ant-sw-17b up 0 days 00
>>> hrs 03 mins
>>> Note Wed 13th Feb 2019 09:45 EVLA-ant-sw-17 up 0 days 00
>>> hrs 03 mins
>>> Note Wed 13th Feb 2019 09:46 EVLA-ant-sw-6 up 0 days 00
>>> hrs 03 mins
>>> Note Wed 13th Feb 2019 09:46 EVLA-ant-sw-6b up 0 days 00
>>> hrs 03 mins
>>> Note Wed 13th Feb 2019 09:49 EVLA-ant-sw-14 up 0 days 00
>>> hrs 06 mins
>>> Note Wed 13th Feb 2019 09:49 EVLA-ant-sw-14b up 0 days 00
>>> hrs 06 mins
>>>
>>> Wed 27th Feb statseeker ping outage to these antennas started at
>>> 9:13am back up at times below and how long ping was down
>>> Note Wed 27th Feb 2019 09:16 EVLA-ant-sw-10b up 0 days 00
>>> hrs 01 min
>>> Note Wed 27th Feb 2019 09:16 EVLA-ant-sw-10 up 0 days 00
>>> hrs 01 min
>>> Note Wed 27th Feb 2019 09:16 EVLA-ant-sw-8b up 0 days 00
>>> hrs 02 mins
>>> Note Wed 27th Feb 2019 09:16 EVLA-ant-sw-8 up 0 days 00
>>> hrs 02 mins
>>> Note Wed 27th Feb 2019 09:16 EVLA-ant-sw-15b up 0 days 00
>>> hrs 02 mins
>>> Note Wed 27th Feb 2019 09:16 EVLA-ant-sw-15 up 0 days 00
>>> hrs 02 mins
>>> Note Wed 27th Feb 2019 09:17 EVLA-ant-sw-27b up 0 days 00
>>> hrs 03 mins
>>> Note Wed 27th Feb 2019 09:17 EVLA-ant-sw-27 up 0 days 00
>>> hrs 03 mins
>>> Note Wed 27th Feb 2019 09:17 EVLA-ant-sw-6b up 0 days 00
>>> hrs 03 mins
>>> Note Wed 27th Feb 2019 09:17 EVLA-ant-sw-17b up 0 days 00
>>> hrs 03 mins
>>> Note Wed 27th Feb 2019 09:17 EVLA-ant-sw-17 up 0 days 00
>>> hrs 03 mins
>>> Note Wed 27th Feb 2019 09:17 EVLA-ant-sw-6 up 0 days 00
>>> hrs 04 mins
>>> Note Wed 27th Feb 2019 09:20 EVLA-ant-sw-14 up 0 days 00
>>> hrs 07 mins
>>> Note Wed 27th Feb 2019 09:20 EVLA-ant-sw-14b up 0 days 00
>>> hrs 07 mins
>>>
>>> --Jeff L.
>>>
>>> On 03/05/2019 12:47 PM, Dave Parker wrote:
>>>> Jeff,
>>>>
>>>> The antennas you noted losing coms this morning (with location) were
>>>> 14 at BE7, 17 at BN9, 6 at BN7, 8 at BN5, 26 at BW9, 27 at BE8, 10
>>>> at BE2, and 15 at BN3. I do not think antenna 28, now BW2, was
>>>> affected this outage but was the week before when on the master pad.
>>>> You might recheck antennas 11 BN8, 9 BN4, 18 BW8, and 12 BE4.
>>>>
>>>> Work was done on antenna 15 on the 27th of FEB. Antennas 10, 22, and
>>>> 25 had the network switches bypassed from the PDU's on 4 March so
>>>> they may want to be rechecked also.
>>>>
>>>> Below are comments from Ken Sowinski regarding coms failures on the
>>>> last 2 generator test. On, I believe the 13 and 27th of Feb.
>>>>
>>>> Dave
>>>>
>>>>
>>>> -------- Forwarded Message --------
>>>> Subject: Re: [evlatests] generator testing side-effects
>>>> Date: Mon, 4 Mar 2019 13:54:19 -0700 (MST)
>>>> From: Ken Sowinski <ksowinsk at nrao.edu>
>>>> To: Ken Sowinski <ksowinsk at nrao.edu>
>>>> CC: evlatests at nrao.edu
>>>>
>>>> On Tue, 19 Feb 2019, Ken Sowinski wrote:
>>>>
>>>>> During the generator testing last Wednesday I recorded 48V powerplant
>>>>> voltage and current from the M302, and sampler temperatures for all
>>>>> four modules at the antennas chosed to be distributed over all three
>>>>> arms and the master pad. The antennas used were:
>>>>> West arm: ea01, ea02, ea28 (master pad)
>>>>> North arm: ea04, ea06, ea11, ea15
>>>>> East arm: ea10, ea16, ea23
>>>>>
>>>>> This is the first of two notes and describes the overall antenna and
>>>>> power plant response. The second will describe the sampler behavior.
>>>>>
>>>>> An unexpected result is that about half the antennas suffered a
>>>>> communication outage when AC power was removed from the antenna.
>>>>> At least one antenna on the East arm had communications restored
>>>>> before AC power was restored. The antennas which experienced
>>>>> a communication outage are:
>>>>>
>>>>> ea28, ea06, ea11, ea15, ea10,
>>>>
>>>> During the generator tests of last Wednesday, Feb 27, I monitored
>>>> the east arm antennas with the following results.
>>>>
>>>> Network unaffected: ea05, ea06, ea16, ea21, ea23
>>>> Network lost: ea10, ea14, ea27
>>>>
>>>> The three antennas that were monitored both a week ago and this
>>>> time behaved the same way on both days.
>>>>
>>>> ea06 returned power plant voltage as exepcted, but always zero for
>>>> current.
>>>>
>>>> ea12 is on the east arm but I neglected to notice that.
>>>>
>>>>
>>>> _______________________________________________
>>>> evlatests mailing list
>>>> evlatests at listmgr.nrao.edu
>>>> https://listmgr.nrao.edu/mailman/listinfo/evlatests
>>
>> _______________________________________________
>> evlatests mailing list
>> evlatests at listmgr.nrao.edu
>> https://listmgr.nrao.edu/mailman/listinfo/evlatests
>>
>
More information about the evlatests
mailing list