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G8MNY > TECH 25.12.10 11:31l 120 Lines 5151 Bytes #999 (0) @ WW
BID : 3252_GB7CIP
Read: GUEST
Subj: META HF Millennium 810H UPS
Path: IZ3LSV<F6CDD<GB7CIP
Sent: 101225/0120Z @:GB7CIP.#32.GBR.EU #:3252 [Caterham] $:3252_GB7CIP
From: G8MNY@GB7CIP.#32.GBR.EU
To : TECH@WW
By G8MNY (New Mar 08)
(8 Bit ASCII graphics use code page 437 or 850, Terminal Font)
This is some info I have found out on this Italian 100% Power Conversion UPS.
(Uninterruptable Power Supply)
It tests out OK on its own battery, but they are low (20%) (2 flashing LEDs
after battery test).
Stripping it down, I found the model type is the 1kW HF Millennium (810H). But
this one has 2x 36V battery sets, so it has 2x the backup capacity of the 810
model. But weighs almost as much as the 2kW 820 inverter model at nearly 33kg!
SYSTEM
It is not like the APC UPSs, as there is no big 50Hz mains transformer. The
META rectifies the mains to make ñ380V DC regulated @ 2A each, & inverts this
with HF class D amp into 50Hz 230V @ 5A sine wave. On battery mode it has a
DC-DC inverter from 36V @ 45A to the 380V DC. The THROUGH non inverting mode,
only comes on for overloads.
Although inverting all the time I could not hear the QRM on 80m with my
external aerial.
Bypass
ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ _____ Mains
ÚÄÄÄÄÄÄ¿ ³ ÚÄÄÄÄÄÄÄÄ¿ ñ380V DC ÚÄÄÄÄÄÄÄÄ¿ / Out
Mains >Ä´FilterÃÄÄÁÄ´AC-SM DCÃÄÄÄÂÄÄÂÄÄÄ´HF 50HzÃÄÙ
In ÀÄÄÄÄÄÄÙ ÀÄÄÄÄÄÄÄÄÙ ³ ³ ³Inverter³
ÚÄÄÄÄÄÄÄ¿ ³ ³ ÀÄÄÄÄÄÄÄÄÙ
36V ÚÄÄ´ChargerÃÄÄÙ ³
BatteryÄ´ ÃÄÄÄÄÄÄÄ´ ³
ÀÄÄ´InveterÃÄÄÄÄÄÙ
ÀÄÄÄÄÄÄÄÙ
SPEC
Input 186-264v full load 110-265V 50% load.
Output 230V ñ2% 50Hz Sine wave.
Power 1kW max 4.35A resistive load. e.g. 700W max with PF 0.7 load.
Freq Sync. will lock to mains if within tolerance e.g. ñ2Hz
Bypass mode, only used on overload.
Efficiency 80% with 50-100% loads. (about 70W lost all the time)
BATT TESTING
I did a 60W car headlamp test on each 12v battery, only 1 was below 11V (10.9V)
so I paralleled up all the batteries & put them on 13.8V charge for a few hours
to even up the charge. The batteries are the standard 7AH 12v tagged type, 6
off. I marked up the weak one for future reference in case it stays weak.
Currently the charge status reads 80%. (4 of the 5 LEDs on after batt test,)
The 12V DC FAN was duff & alarms the UPS if plugged in. (brushless type draws
2A @ 12V & does not spin!). It has been running on a 27V supply, (duff reg?) so
I replace the fan with a quiet efficient 50V DC one I had rather than fault the
motherboard's fan regulator.
THE CASE
The case comes apart very strangely!
_________________________ Control Panel
6"/ /~~~~~~~~~~~~~~~~~~~~~~~~~\Ù
Recessed Handle ³=³ Ú-----------------------¿ ³ Recessed Handle
RS232>³#³ | | ³
³ ³ | | ³
Fan>³±³ | Side Access Panels | ³
³ ³ | (4 small Screws each) | ³
³ ³ | | ³17"
³ ³ | | ³
³ ³ | | ³
³ ³ | | ³
Mains in/out IECs ³#³ | | ³
Top U Cover Screws>³_³_|_______________________|_³<Top U Cover screws
24"
After removing the steel side panels, the top steel U cover comes off with 3
plug leads.
Removing the centre PCB section steel frame with 4 small screws, leaves the
heavy bottom battery & mains filter compartment.
CONTROL PANEL
ÚÄÄÄÄÄÄ BY PASS ÄÄÄ * Ä¿ * LEDs gives status
³ ÚÄÄÄ¿ ³
MAINS * ÄÁÄ´~/=ÃÄ¿ ÚÄÄÄ¿ ÃÄÄ OUT After batt Test No of LEDs
ÀÄÄÄÙ ÃÄÄÄÄ´=/~ÃÄ * ÄÙ gives charge 20 40 60 80 100%
ÚÄÄÄ¿ ³ ÀÄÄÄÙ
BATTERY * ÄÄÄ´=/=ÃÄÙ * OVERLOAD
ÀÄÄÄÙ * PROTECTION
( (1) ) ( (/) )
On Off Test & Alarm off
INSIDE _________________________ Control Panel
/ ........pcb \Ù
Recessed Handle ) Ú-----------------------¿ ( Recessed Handle
RS232>³ |³~~~~~~~~~~~~~~~~~~~~~³| ³
³ |³ ³| ³
Fan>³ |³ Huge inverter PCB ³| ³
³ |³ ³| ³
³ |³ ³| ³
³ |³______ Mother_board__³| ³
³ | =============== | ³
³ |~~~~~~³~~~~~~~~~~~~~~~~| ³
IEC mains in/out ³ |filter³ Batteries | ³
Top U Cover Screws>³_|______³________________|_³<Top U cover screws
BATTERIES
These are in 2 rows of 3 such that the +/- 36v for each set appear next to each
other. A bolted down (4x Hex/Allen key drive) metal U plate holds the batteries
in place.
SOFTWARE
There are no hardware options on the UPS, all are set using software.
See my buls on "APC Smart 900 UPS", "Lead Acid Batteries", "Constant Voltage
Transformers", & "Mains Power Protector".
Why don't U send an interesting bul?
73 De John, G8MNY @ GB7CIP
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