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Old 24-06-2019, 16:32   #1
Pirat
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Question APC 1500 - temperatura

Salutare,

ieri s-a oprit UPS-ul cu eroarea "Internal Temperature Exceeds Critical Range"

Cand i-am dat din nou drumu arata in jur de 36*C. Selftest trece fara erori. Load constant de 200-250W(masurat cu wattmeter la priza).

E destul de cald in casa, fiind la ultimul etaj, iar temperatura ambient e in jur de 25*C. Are rost sa il desfac pentru a verifica bateriile? Din cate stiu, ele au fost schimbate anul trecut in Februarie.
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Old 24-06-2019, 21:11   #2
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Desfa capacul frontal si vezi daca sunt calde bateriile la utilizare normala. In mod normal ar trebui sa stea maxim 3-5C peste ambient. In load e normal sa se duca mai sus, dar nu peste 45-50C (sa friga la atingere).

Ale mele de ex acum stau la 29.9C, cu ambient 27C (abia am ajuns acasa, n-am pornit aerul conditionat inca), in cutie inchisa complet, fara aerisire (ventul din cutia lor e setat sa porneasca la +35C).

Ventul din APC porneste la self-test/calibrare?

L.E. Asa arata la mine acum.
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Old 24-06-2019, 21:58   #3
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O sa il desfac maine si verific. Din loguri temperatura nu a urcat inainte de incident.

La selftest se aude ventilatorul. Print cu status actual.
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Old 28-06-2019, 15:53   #4
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Daca e la ultimul etaj, sunt mai repede 30 de grade intr-o zi normala fara AC. La 25 de grade e daca ai AC-ul pornit.

Pe baterii e inscriptionata data, poti sa verifici asa cat de vechi sunt.
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Old 29-06-2019, 03:08   #5
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Am citit azi mai multe chestii legate de floating voltage-ul pe care il dau bateriilor. In special ma refer la SUA1500 sau SMT1500, ca despre ele am citit.

La mine in PowerChute imi zice battery voltage ca fiind 27.4v, cand pe fiecare baterie am real 13.85v (deci 27.7v). Producatorul bateriilor spune ca floating voltage trebuie sa fie intre 13.50 si 13.80V.

Treaba asta se intampla in timp pentru ca anumite rezistente care stabilesc voltajele astea isi ies din toleranta si gradual ups-ul incepe sa creasca voltajul de incarcare (el crede ca trimite 27.4v cat arata in soft, dar la iesire are 27.7 in cazul meu). UPS-ul meu are 11 ani, deci e normal sa se fi intamplat asta.

Daca duci bateria peste limita producatorului ai degradare muuult mai mare. Sunt cateva variante de a rezolva asta, si probabil o sa fac mod-ul cand o sa am timp suficient. Trebuie inlocuita, cel putin la SUA1500, o rezistenta cu un potentiometru reglabil, si astfel se poate seta voltajul de incarcare foarte precis. In cazul meu runtime-ul e suficient, asa ca prefer sa pierd 10m de runtime pentru o durata de viata mult crescuta a acumulatorilor. O sa le pun la 13.5v daca imi iese mod-ul.

Mai e si varianta cu serial port si schimbat niste parametri, dar decat sa gasesc cablu serial potrivit mai bine schimb rezistenta.

http://www.jjoseph.org/notes/apc_sma..._float_voltage
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Old 29-06-2019, 09:22   #6
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Man... se regleaza software tensiune baterilor, nu trebuie sa faci modare hardware. Era un tool cu care reglezi in jos sau in sus tensiunea in termeni relativi. APC Tools sau ceva de genul asta. Acum trebuie sa plec la vulcanizare, dupa ce revin caut exact si postez aici.
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Old 29-06-2019, 15:53   #7
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Daca merge cum ai zis tu prin altfel decat serial port sau network card ar fi ideal. Dar peste tot pe unde am cautat ziceau ca modul software se face prin serial port.
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Old 29-06-2019, 15:57   #8
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Prin serial se face. De ce nu poti conecta serial?
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Old 29-06-2019, 16:01   #9
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Ca n-am pe mobo. Exista ceva convertoare USB > Serial ?

L.E. Asta merge?

https://www.aliexpress.com/item/3231...b-f5c72b7d9da3
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Old 29-06-2019, 16:30   #10
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Nimeni nu mai are pe mobo nativ, dar decat sa faci modare hardware, nu mai bine imprumuti un usb to serial sau pui o mufa in spate? Multe placi de baza inca au port serial doar ca nu au mufa in spate, au pinii pe placa.
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Old 29-06-2019, 17:48   #11
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Merge cablul ala din link? Pare ceva simplu USB to RS232. Sau trebuie ceva mai special?
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Old 29-06-2019, 20:39   #12
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Man, ala e un cablu chinezesc, de unde sa stiu daca merge? Eu am folosit un cablu ieftin din comert si a mers. Doar atat pot sa iti zic.
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Old 29-06-2019, 21:31   #13
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Nu la asta ma refeream, eram curios daca de la USB la Serial e nevoie de ceva convertor in between, cum e de la HDMI la VGA de ex.

L-am luat, vedem cum e cand vine.

Cu ce aplicatie poti face modificarea odata conectat la UPS prin serial?

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Old 29-06-2019, 22:01   #14
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http://www.apcupsd.org/

de la minutul 4:44

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Old 29-06-2019, 23:07   #15
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Multam frumos, revin cu feedback dupa ce primesc cablul.
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Old 02-07-2019, 12:52   #16
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@Pirat, de unde ai PowerChute Business edition? Are mai multe features decat cel personal? Am si eu un APC BR1500GI.

De doi ani si ceva de cand il am, nu am avut probleme cu bateria, cumparata noua de la PC-Garage. Isi face treaba fara niciun deranj.
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Old 02-07-2019, 18:08   #17
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Powerchute Business edition e de aici. Era parca si o varianta pe pagina APC. L-am luat pentru ca sunt obisnuit cu el de la munca. Nu m-am uitat la varianta personal.

L-am desfacut, bateriile sunt calde dar nu fierbinti. Pot sa dorm linistit.
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