ELTEK Flatpack2 48/2000 (eaton alternative)

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ewinters
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ELTEK Flatpack2 48/2000 (eaton alternative)

Post by ewinters » May 22, 2015 9:57 pm

Well is a Brazilian eBay equivalent: (Fonte Modulo Eltek Flatpack2 Retificador 48v 3000w 56a
http://produto.mercadolivre.com.br/MLB- ... 0w-56a-_JM)

Just arrived at home. It is unexpectedly small, but solid as a brick (beer for scale):

ImageImageImageImageImageImageImage

The curious thing is that the right fan in the panel is fake.

I smashed and soldered female spade connectors, they fit perfectly on both AC input and DC output. The male spade connector is too thin.

This must have lots of capacitors, the fan kept running for 30 seconds after unplugged.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » May 22, 2015 11:41 pm

ewinters wrote:Well is a Brazilian eBay equivalent: (Fonte Modulo Eltek Flatpack2 Retificador 48v 3000w 56a
Nice, be pricey for shipping for me though.
You going to mod it?
Is the daughter card inside, similar to the Flatpack 2000W
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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by ewinters » May 23, 2015 2:41 am

I'll charge through an adaptto controller, so no mods required. :)

I took some pictures from the inside so the people that can read chips may tell. Is all the same for me.

ImageImageImageImage

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » May 23, 2015 5:21 am

ewinters wrote:I'll charge through an adaptto controller, so no mods required. :)
That's good to know. I need 88V from two series.
ewinters wrote:I took some pictures from the inside so the people that can read chips may tell. Is all the same for me.
There appears to be some differences straight off and looks like several years difference in age, to the modded unit shown.
Thanks makes me think twice about modding without a good going over one.
Gokart A123 80V
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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by striker54 » May 24, 2015 1:24 am

eTrike wrote:Could someone please share how these are grounded?
See the first and second picture: https://endless-sphere.com/forums/viewto ... 9#p1044262. The earth wire is in the middle.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by speedpower99 » May 24, 2015 4:20 pm

Can you adjust/limit the current on this power supply? 37A is too much for most battery packs.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by speedpower99 » Jun 01, 2015 1:47 am

I thought it would be similar to the MeanWell power supply with voltage and current mod.
This one is not to use as bulk charger and must be used with other controller. Good/bad thing is that I didn't win the bid on an ebay one. :mrgreen:

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by dnmun » Jun 01, 2015 2:08 am

57.6 is just right for a 16S lifepo4 pack at 3.60V balance voltage. needs a big pack though.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by dnmun » Jun 01, 2015 11:24 am

you can do that with a 40A breaker and 10AWG romex. but will your battery take that much juice?

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by ewinters » Jun 01, 2015 1:06 pm

I read somewhere here that you could connect in series with a charger, that way the amps will be limited by the charger (voltage will be increased though).

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by ewinters » Jun 01, 2015 5:08 pm

My solution for the connectors, epoxy and insulating tape, a DIY classic. It is only touching the back panel, so it can be removed.

Image

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by Dirtech » Jun 01, 2015 5:17 pm

ewinters wrote:My solution for the connectors, epoxy and insulating tape, a DIY classic. It is only touching the back panel, so it can be removed.

Image
I did similar, but I insulated the metal casing with electrical tape first. Haven't used it yet, still waiting on the last few pieces for my build.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » Jun 02, 2015 7:04 am

ewinters wrote:I read somewhere here that you could connect in series with a charger, that way the amps will be limited by the charger (voltage will be increased though).
So can you put a different supply is series, say a 24V variable output bulk power supply and vary say from 20-30V, to give 57.5+(20-30) V 77.5 - 87.5V, charging 22 - 24S lifepo, or 19 - 21 lipo.
Do the chargers need to be about the same current or power ratings, being on series?
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mongoose frame
mini monster controller
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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by megacycle » Jun 04, 2015 5:09 pm

eTrike wrote:You will be limited by the current of the weakest supply.
Sweet, Thanks.
Gokart A123 80V
300A Kelly Controller
PM72301 motor

15S lipo
mongoose frame
mini monster controller
500W funboy
Speedict Mecury

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by ridethelightning » May 19, 2016 9:59 pm

subscribe

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by ridethelightning » May 20, 2016 9:23 am

how did you guys get a solid contact when attaching the cabling, solder?
its really poky in there and difficult to dismantle the contact housing without destroying it.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by Merlin » Jun 28, 2016 9:09 am

check in to the club of eltek lovers ^^


i did it in this way....

this connector with heatshrink because the upper pins are for CAN. So it works safe only using the downside pins.

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it was a bit losen so some solder on it -> perfect fit.

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i filled the connectors with a 100w iron and solder....works great.


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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by dgh853 » Sep 14, 2016 8:07 am

Does anyone know the purpose of the pin adjacent to the CAN Hi and CAN Lo on the Eltek Flatpack 2 HE?

Thanks

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by danielrlee » Mar 15, 2017 12:12 pm

I have just taken receipt of a Flatpack2 HE 3000W power supply as in the photos below and was wondering if anybody can clear up a bit of confusion.
IMG_20170315_165226.jpg
IMG_20170315_164749.jpg
IMG_20170315_164749.jpg (135.66 KiB) Viewed 1453 times
I was lead to believe that only the newer Flatpack2 supplies with the black fascia were the HE versions and only those could be reprogrammed (voltage, amperage) via the CANBUS connection. This power supply is clearly marked 'HE' on the fascia, even though the fascia is silver. Should this supply be programmable or not?

Thanks

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by dgh853 » Mar 15, 2017 3:15 pm

I have tried to set the default voltage on grey twin fan Flatpack 2 2000 with no success. The commands for setting temporary voltage from the black single fan models work OK but it seems the permanent voltage change does not work. :cry:

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by danielrlee » Mar 16, 2017 2:14 am

dgh853 wrote:I have tried to set the default voltage on grey twin fan Flatpack 2 2000 with no success. The commands for setting temporary voltage from the black single fan models work OK but it seems the permanent voltage change does not work. :cry:
Thanks for your reply. Is your grey Flatpack2 the HE version as in the photo posted above?

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by dgh853 » Mar 16, 2017 3:31 am

No, the two I have are not an HE version

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by Merlin » Mar 16, 2017 8:26 pm

from the 3000w flatpack theres no "newer" version.

it is "HE" just for his 3000w and size.
double fan, 3 times louder also without load.
but absolutley nice 3000w on same size of an FP2 HE (2000w)

about programming i cant help. never had one. rare pieces out there.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by danielrlee » Mar 17, 2017 6:00 am

Merlin wrote:from the 3000w flatpack theres no "newer" version.

it is "HE" just for his 3000w and size.
double fan, 3 times louder also without load.
but absolutley nice 3000w on same size of an FP2 HE (2000w)

about programming i cant help. never had one. rare pieces out there.
I have no prior knowledge of CANBUS programming either, so I'd like to be sure it is possible before purchasing a CANBUS adapter. From your comments it sounds like this power supply should be suitable for permanent programming, so I will likely take the plunge.

There is only one fan though - the one on the right is just a dummy fan built into the fascia.

Thank you for your help.

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Re: ELTEK Flatpack2 48/2000 (eaton alternative)

Post by dgh853 » Mar 17, 2017 6:49 am

You might have missed my earlier comment about the twin fan grey fascia units. They cannot be permanently set using the same commands for the black fascia single fan units. I have tried them and they simply don't work.

If you can't be certain you can permanently change the voltage then you'll have to be happy with the default voltage which will be 53-54V from memory.

Be aware also that the 3000W units push 60A so you'll need a good PCB connector with 3 or 4 oz cu and a plug that will handle 60A current.

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