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SuperUser
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Weird DC PSU status.

So my DC PSU is acting really weird.  Note the battery voltage.

 

TempEPMain.PNG

 

Now look at the log.  Its re-assuring that every once in a while it does show the correct voltage.  But most of the time it's wrong.

 

The DC-PSU is connected to a TYCON battery charger output.  I will go measure the voltage with a volt meter to check next time I'm at the site. 

 

TempEPVolt.PNG

ubiquiti certified trainer :: ubwa | uewa
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Re: Weird DC PSU status.

I just noticed this same issue showing 1.26V on my 48v bank. It occasionally flashes 49.9v but most of the time shows 1.26v. With my meter it shows 50v to the plug and if I monitor amperage with the meter from the PSU to the battery bank it shows it has positive amperage going to the batteries so it is charging. I think it is a GUI glitch but it doesnt seem that UBNT is very active on this side much at all to chime in. 

 

I wish there was a bit more development on the firmware but from what I have read we shouldnt expect an update until Q2 at the earliest next year. Its kind of disappointing, this product has some promising features but without support we cant rely on it for our sites. 

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Re: Weird DC PSU status.

[ Edited ]

Claude... I have several doing this aswell. I verified batteries are charged... I am concerned this could led to site power down when on battery

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edgepower-fail.PNG
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Re: Weird DC PSU status.

I agree. This gives me very little confidence that the batteries will take over. I had not seen this last year when I bench tested these.
ubiquiti certified trainer :: ubwa | uewa
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Re: Weird DC PSU status.

Paging @UBNT-Jordan   any updates?

 

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Re: Weird DC PSU status.

@Magician I have logged this internally and our team will be taking a look to narrow down what causes the Voltage to give this unexpected value.

 
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Re: Weird DC PSU status.

@UBNT-Jordan Add me to the wierd status list.  Two 12v 18amp batteries @2 months old.  I hope they'll hold up long enough for the generator to kick in.  No confidence here either....NVFD EdgePower 1.JPGNVFD EdgePower 2.JPG

NVFD EdgePower.JPG

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Re: Weird DC PSU status.

[ Edited ]

Add me to this list because my 48-volt string is also being reported with voltage at either 1.26 or 54.378.

 

Jan  2 12:28:58 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:29:58 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:30:58 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:31:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:32:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:33:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:34:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:35:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:36:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:37:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:38:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:39:59 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:41:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:42:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:43:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:44:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:45:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:46:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:47:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:48:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:49:00 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:50:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:51:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:52:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:53:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:54:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:55:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:56:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:57:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 12:58:01 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 1.26V, temperature: 17C
Jan  2 12:59:02 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 13:00:02 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 13:01:02 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 13:02:02 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
Jan  2 13:03:02 psu-monitor[397]: PSU#1 [DC] battery[4] is operational, charging; voltage: 54.378V, temperature: 16C
New Member
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Re: Weird DC PSU status.

@UBNT-Jordan have you been able to duplicate this or do you need us to collect some specific details for you?
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Re: Weird DC PSU status.

@UBNT-Jordan Ping

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Re: Weird DC PSU status.

Thanks for the feedback. We are aware of this and working on a fix. I will post here when we have an update or if we need more information. 

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Re: Weird DC PSU status.

Add me to the list of users seeing odd voltage readings - 1.26V being reported on a 24V battery string.

 

--Brad

New Member
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Re: Weird DC PSU status.

Similar issues here. 48v battery bank is being reported as various voltages over the span of sevaral minutes (24v, 42v, etc)

Member
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Re: Weird DC PSU status.

Same issue here... +1

Ubiquiti Employee
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Re: Weird DC PSU status.

Update on this issue - This is a reporting error and we are working on a fix for this to be included in the next release.

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Re: Weird DC PSU status.

@UBNT-Jordan

 

We’re gearing up to install 3 x New EP’s next week, all have 1 AC and 1 DC PSU, consequently very anxious to know if the fix for this DC Reporting issue made it into v1.2.0 Beta 1?

>>If you find replies helpful please press the Thumbs Up button to give kudos (thanks). If you feel a reply solves your query please click the Mark as Solution button.
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Re: Weird DC PSU status.

@Ripv The fix is not included in 1.2.0beta1, but it is planned to be included in 1.2.0 final if not before.

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Re: Weird DC PSU status.

[ Edited ]

This was my solution.

 

Rackmount 48V battery module. It self-charges off AC, so no need to rely on the edgepower to charge it back up. It keeps itself floating at the right voltage, so no big deal if the edgepower is reporting incorrectly.

 

https://www.cyberpowersystems.com/product/ups/bp48v45art2u/

 Capture.PNG

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Re: Weird DC PSU status.


@UBNT-Jordanwrote:

@Ripv The fix is not included in 1.2.0beta1, but it is planned to be included in 1.2.0 final if not before.


We held off installing these due to the potential issue of the DC backup not kicking in if there was a power failure; is there any update on when v1.2.0 final with the fix will be available please?

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Re: Weird DC PSU status.

Firmware 1.2.0 has been released here which resolves the reported issue with voltage reading 1.26V incorrectly. 

 

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