This is just a inverter /charger.. No intelligence in it
Gino A. Villarini President Aeronet Wireless Broadband Corp. www.aeronetpr.com @aeronetpr From: Josh Reynolds <[email protected]<mailto:[email protected]>> Reply-To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Date: Tuesday, January 6, 2015 at 4:24 PM To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>, Ken Hohhof <[email protected]<mailto:[email protected]>> Subject: Re: [AFMUG] 24V UPS Magnum mms1200, take a look On January 6, 2015 11:08:38 AM AKST, Ken Hohhof <[email protected]<mailto:[email protected]>> wrote: Another option is this: http://www.tripplite.com/line-interactive-sine-wave-ups-system-.75kva-snmp-tower-usb-rs232-extended-runtime-100v-110v-120v~SMART750XLA/ I’ve had one at a tower site for a couple years with no problems. It has a red/black PowerPole for external batteries if you want extended runtime. The web mgmt card is a little funky and the fan runs all the time, but otherwise it seems fine. Some people have stated it will require human intervention if you run the batteries all the way down but I have not tested if this is true. It does if I remember correctly have a dual load bank feature that could be useful for remotely or automatically shedding less critical loads. However Gino is wanting to run DC loads directly off the batteries. I’m not sure any AC UPS is intended for that. From: Gino Villarini<mailto:[email protected]> Sent: Tuesday, January 06, 2015 1:39 PM To: mailto:[email protected] Subject: Re: [AFMUG] 24V UPS Big sites ( 500 watts or more) we go Emerson. Great units! Mark pointed us that way... Smaller sites go APC, our situation is that many remote sites have long power outages... 3-4 days sometimes Gino A. Villarini @gvillarini On Jan 6, 2015, at 3:21 PM, Ken Hohhof <[email protected]<mailto:[email protected]>> wrote: Have you looked at Eltek and Emerson? Although Eltek seems to be oriented around –24 or –48, and not so good for +24. Not familiar with Emerson, Mark Radabaugh has posted they use them. I have an Eltek Micropack –48V system and the web and SNMP capability is excellent. I did have one rectifier module fail, but it was pretty painless given they are N+1 redundant. From: Gino Villarini<mailto:[email protected]> Sent: Tuesday, January 06, 2015 1:15 PM To: mailto:[email protected] Subject: Re: [AFMUG] 24V UPS The problem with xl units it's the charger ... It has low amperage (5-8 amps dep model) and don't maintain well big banks The idea is to have the xl with internal batt and have a big bank connected to the external batt connector This bank will be isolated from the apc during AC operation. The bank will have a good charger and will run 24 dc loads(still under consideration) AC fails, the apc ups will see the big bank for extended runtimes Gino A. Villarini @gvillarini On Jan 6, 2015, at 2:51 PM, Josh Baird <[email protected]<mailto:[email protected]>> wrote: Hmm, give us details when you get them regarding the XL! Josh On Tue, Jan 6, 2015 at 1:45 PM, Gino Villarini <[email protected]<mailto:[email protected]>> wrote: Chris Thanks for this compressive evaluation. We bought 2 Alpha/Cordex unit for testing. We are in a similar spot, looking for a web managed power system in 24 and 48 vdc. You saved us the expense of buying an ICT unit. That being said, we are looking into using a slightly modified apc xl unit to run 24 dc direct from the UPS DC rail Gino A. Villarini @gvillarini > On Jan 6, 2015, at 12:24 PM, Christopher Tyler > <[email protected]<mailto:[email protected]>> wrote: > > I'm at my end. I've been looking at this for a while now and it's obvious > that no one makes an industrial APC UPS that works. > > We've tried the Alpha Cordex (DIN rail) and the ICT (19" rack) and neither > one can do what a APC management card can. We just need it to provide 24vDC > to a load and when the AC power goes out, send an alert and let us monitor > the system status via SNMP. > > Alpha: > PROS: DIN rail mounted > CONS: Web interface is IE only, SNMP requests are completely broken, have not > tested SNMP traps, cost is about $700. > > ICT: > PROS: It works well as a dumb power supply/charger with UPS functionality, > web interface works in all browsers. > CONS: SNMP is limited to about 6 values, all remote communication is lost > when AC is removed, no battery monitoring at all other than the voltage for > use with LV cutoff which is one of the values that is not available via SNMP. > Also costs about $700 > > I have to give it to Alpha at this point, at least their unit remains > "intelligent" when AC power is removed. If they would fix their web interface > and SNMP it would be perfect. > > So... Does anyone have a solution that works that isn't completely cobbled > together? I need to know when we lose/regain AC power, that the battery is > draining, what the battery voltage is so that I know when it's about to cut > off, it needs a LV cut off to protect the batteries, and all this information > needs to be available via SNMP and web. Am I asking for too much or does > something of this nature exist outside of TrippLite and APC? > > -- > Christopher Tyler > MTCRE/MTCNA/MTCTCE/MTCWE > Total Highspeed Internet Services > 417.851.1107<tel:417.851.1107> > -- Sent from my Android device with K-9 Mail. Please excuse my brevity.
