An ice storm knocks the power line going to this tower site down. I need batteries until power is restored then I revert back to AC when power is restored and also trickle charge batteries. I also typically have a packetflux site monitor polled every five minutes giving me reports on battery voltage etc.
It used to be most our stuff was 24 volt and we used DRP-240-24 - power supply and DR-UPS40 to connect to batteries. Now most our stuff is PMP450i or better and we need mostly 48+ volts. We have have been doing DC to DC to get the 48-55 volts but that is starting to seem very inefficient. On Mon, Nov 25, 2019 at 5:07 PM Ken Hohhof <af...@kwisp.com> wrote: > OK, I’ve got to ask. What does “revert” mean in this context? > > > > *From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Matt > *Sent:* Monday, November 25, 2019 4:59 PM > *To:* AnimalFarm Microwave Users Group <af@af.afmug.com> > *Subject:* Re: [AFMUG] 48 Volt Battery Revert > > > > >> Somebody suggested the 48V version of the Mean Well USP that appears to > be an exclusive OEM by that fiber equipment company, that may be what you > want. > > > > I would really rather stick with the Mean Well NDR-480-48 but I simply > cannot find a Mean Well battery revert for it. > > > > > > On Fri, Nov 22, 2019 at 12:35 PM Ken Hohhof <af...@kwisp.com> wrote: > > I really don’t view it as an optional feature. The way the Traco BCM > works is that it controls the voltage of the power supply so rather than > the nominal voltage like 24 or 48 volts, it is set to the proper voltage to > charge the battery, like 28 or 56 volts. It comes with a little 2 wire > jumper cable that goes between the power supply and BCM, and also a > temperature sensor that you attach to the batteries. If you’re not going > to use it that way, I think maybe you should find a different product. > > > > I’m guessing you are using the manual voltage adjust on the Mean Well > power supply with a voltmeter to set the voltage to the float voltage you > want for the batteries and also the voltage that the loads will see. If > the batteries are outside and subject to varying temperature, this is going > to undercharge or overcharge your batteries depending on time of year, > solar heating, etc. The BCM will allow a fairly sizable battery charging > current, so overcharging will probably reduce battery life quite a bit. > Undercharging will hurt your runtime. Overall, it’s non optimum. You’re > using the Mean Well as a dumb charger, and the BCM as an expensive low > voltage disconnect. Not sure why you don’t want to use the TSP series > power supply. > > > > Somebody suggested the 48V version of the Mean Well USP that appears to be > an exclusive OEM by that fiber equipment company, that may be what you want. > > > > > > *From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Adam Moffett > *Sent:* Friday, November 22, 2019 11:56 AM > *To:* af@af.afmug.com > *Subject:* Re: [AFMUG] 48 Volt Battery Revert > > > > I think temperature compensation. BCM signals TSP to adjust voltage. > > I assume the AC alarm comes through that link cable too. > > > > On 11/22/2019 12:43 PM, Sterling Jacobson wrote: > > What am I missing not using the TSP power supply and remote link? > > > > *From:* AF <af-boun...@af.afmug.com> <af-boun...@af.afmug.com> *On Behalf > Of *Matt > *Sent:* Friday, November 22, 2019 9:30 AM > *To:* AnimalFarm Microwave Users Group <af@af.afmug.com> <af@af.afmug.com> > *Subject:* Re: [AFMUG] 48 Volt Battery Revert > > > > So what is the remote link for? > > > > > > On Fri, Nov 22, 2019 at 7:56 AM Josh Baird <joshba...@gmail.com> wrote: > > So you're not taking advantage of one of the most compelling reasons to > use the TSP+BCM combo. > > > > On Fri, Nov 22, 2019 at 8:51 AM Sterling Jacobson <sterl...@avative.net> > wrote: > > I don’t use the remote link, or the TSP PS units. > > > > *From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Ken Hohhof > *Sent:* Thursday, November 21, 2019 6:17 PM > *To:* 'AnimalFarm Microwave Users Group' <af@af.afmug.com> > *Subject:* Re: [AFMUG] 48 Volt Battery Revert > > > > I wouldn’t think the Mean Well power supply would be compatible with the > remote link on the BCM. > > https://www.tracopower.com/products/tsp-bcm.pdf > > > > I think the TSP-BCMU360 can be fed from any brand of power supply, but > it’s a different animal probably best for smallish batteries. > > > > *From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Sterling Jacobson > *Sent:* Thursday, November 21, 2019 5:56 PM > *To:* AnimalFarm Microwave Users Group <af@af.afmug.com> > *Subject:* Re: [AFMUG] 48 Volt Battery Revert > > > > I use the TSP-BCM48(A). > > > > https://www.trcelectronics.com/View/TRACO-Power/TSP-BCM48.shtml > > > > Around $170 > > > > Takes a 48v input, so I use the Mean Well 48v 10A PSU for about $100 to > feed it. > > > > And a string of four 12v 52AH batteries. > > > > > > *From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Jesse DuPont > *Sent:* Thursday, November 21, 2019 4:02 PM > *To:* AnimalFarm Microwave Users Group <af@af.afmug.com>; Matt < > matt.mailingli...@gmail.com> > *Subject:* Re: [AFMUG] 48 Volt Battery Revert > > > > This one is for 48V. It's not Meanwell and it's expensive, but it's > functionally the same as the DR-UPS40, but for 48V. I imagine Meanwell OEMs > this for RLH. > > > https://www.fiberopticlink.com/product/48vdc-ups-battery-charge-controller-module/ > > *Jesse DuPont* > > Network Architect > email: jesse.dup...@celeritycorp.net > Celerity Networks LLC > > Celerity Broadband LLC > Like us! facebook.com/celeritynetworksllc > > Like us! facebook.com/celeritybroadband > > On 11/21/19 10:37 AM, Matt wrote: > > We use Meanwell DIN mount stuff for battery revert. For 24 volt systems we > use. > > > > DRP-240-24 - power supply > > DR-UPS40 - battery revert > > > > I want to move to 48 volt battery banks now instead of up converting 24 to 48. > > > > So what is a version of DR-UPS40 that is DIN mount and supports 48 volt? > > > > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com >
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