Search found 185 matches

by paulvk
Yesterday, 07:07
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 124
Views: 6500

Re: PIP-5048MK inverter

Hello dekin The HLK-RM04 is an rs232 to tcpip converter , wireless access point and router. If you use one at the inverter and a computer for monitoring you install "NetBurner Virtual Comm Port" on the computer and it appears as a normal com port on the computer. If you use two HLK-RM04 one at each ...
by paulvk
Wed, 02 Oct 2019, 07:19
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

Prajna have you the communication protocol PDF file , also if you have the internet at both places you can use the HLK RM04 to connect to the inverters.
I have ATMEL AVR here talking to my inverters showing what watch power does but on two LCD screens.
Regards Paul
by paulvk
Fri, 27 Sep 2019, 17:03
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 124
Views: 6500

Re: PIP-5048MK inverter

I use the HLK RM04 wifi to rs232 works great.
by paulvk
Wed, 25 Sep 2019, 07:24
Forum: Renewable Energy and Storage (Non-EV)
Topic: Is anyone using an arc welder with an offgrid system
Replies: 104
Views: 3446

Re: Is anyone using an arc welder with an offgrid system

a. Neutral link to ground. b. Ground to existing house ground (copper stake). NO definitely do not do this is against the rules you will have two earths on the neutral!!!! With the newer units they have a relay for the neutral link. If you are going to connect the inverter to a grid or generator wit...
by paulvk
Mon, 23 Sep 2019, 09:19
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 351
Views: 5218

Re: PIP inverter repairs and hardware modifications

I have the original parallel PIP4048s (big heatsink on top) with the original capacitors but my mosfets on the DC side are 80v (original with units) its now nearly 5 years I run my washing machine , two sometimes 3 split ACs , refrigerator and two 700 watt water pumps so plenty of inductive loads so...
by paulvk
Wed, 28 Aug 2019, 17:41
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

where can I safely buy a good PIP 48/60 volt / equivalent firmware updateable inverter or three? I can not help right now but will be upgrading two to the 64v for my NiFe cells , I have 6 PIPS , 4 in service and two spares I have to make room , build a rack for the 40 cells and wire it all up then ...
by paulvk
Fri, 16 Aug 2019, 15:37
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

Get a digital temperature control from ebay insulate the thermister probe with some heat shrink tubing put it in the inverter heatsink and let the temprature control unit do the cooling I have done this with extra external 120mm fans when the heatsink gets to 42C it turns them on until it gets to 36...
by paulvk
Wed, 07 Aug 2019, 15:32
Forum: Renewable Energy and Storage (Non-EV)
Topic: Nickel Iron Batteries real data
Replies: 16
Views: 536

Re: Nickel Iron Batteries real data

Lithium hydroxide is added to reduce gassing and helps reduce the internal resistance. As far as water is concerned there are a number of filter systems available with an osmotic filter creating very pure water there are also stills available that produce 20L per hour could be run when the sun is up.
by paulvk
Mon, 05 Aug 2019, 11:50
Forum: Renewable Energy and Storage (Non-EV)
Topic: Nickel Iron Batteries real data
Replies: 16
Views: 536

Re: Nickel Iron Batteries real data

This is the type I have but 200Ah not 400Ah and only two terminal posts not four
[image=]
NiFecell.png
NiFecell.png (149.13 KiB) Viewed 471 times
[/image]
by paulvk
Mon, 05 Aug 2019, 10:29
Forum: Renewable Energy and Storage (Non-EV)
Topic: Nickel Iron Batteries real data
Replies: 16
Views: 536

Re: Nickel Iron Batteries real data

Thanks paulvk. I look forward to your data. Reading this thread so far, was like stepping back in time. Not because you're talking about NiFe cells, but because you're only comparing them to lead-acid. :) Its like oranges and apples they a flooded cells, bulky (more bulky than lead acid) , heavy an...
by paulvk
Mon, 05 Aug 2019, 07:23
Forum: Renewable Energy and Storage (Non-EV)
Topic: Nickel Iron Batteries real data
Replies: 16
Views: 536

Re: Nickel Iron Batteries real data

They seem to average $1 per Ah per cell of 1.2V I got my ones second hand for half that.
by paulvk
Sun, 04 Aug 2019, 11:43
Forum: Renewable Energy and Storage (Non-EV)
Topic: Nickel Iron Batteries real data
Replies: 16
Views: 536

Nickel Iron Batteries real data

I have just got a set of Nickel Iron cells for my 48v off grid setup and as there is very little real data from people using them and a lot of negative comments largely by people who do not have them or are selling other battery tech I am going to put real facts good and bad here so real life use ca...
by paulvk
Wed, 31 Jul 2019, 17:57
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

New standard coming https://www.youtube.com/watch?v=gl0mBaX1mYU&feature=youtu.be On another note I have now a NiFe battery, hopefully the last battery I will have to buy for this system but may have to get two new inverters so I can get to 1.65v per cell 64 volts is very close for 39 cells so can th...
by paulvk
Sun, 07 Jul 2019, 15:23
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

Tejota
Have you tried each inverter on its own not connected as parallel ?
by paulvk
Sat, 15 Jun 2019, 20:38
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 351
Views: 5218

Re: PIP-4048MS and PIP-5048MS inverters

Was a thought ! Might have to get the 64v ones in that case, looking at NiFe as I have the grid just use the inverters to limit its use I can do more and deeper cycles with NiFe without the worry of wearing them out.
by paulvk
Sat, 15 Jun 2019, 20:27
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 351
Views: 5218

Re: PIP-4048MS and PIP-5048MS inverters

My batteries are getting old (7 years young) so been looking at alternatives coulomb can we get the voltage up to 66v for charging I still have one of my one in bits and I have 80v fets I can only see the 63v caps as a problem so change them. The reason is alkaline batteries need 66v.
by paulvk
Sat, 15 Jun 2019, 20:20
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

The post is titled "Do I Own a Clone?" it tries to help identify them.
by paulvk
Sat, 15 Jun 2019, 19:58
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

Its a clone because its made in China my ones are made in Taiwan MPP Solar are in Taiwan .
Page 104 has a picture of the label
by paulvk
Sat, 15 Jun 2019, 19:24
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

Hello Greendrake No you can not feed the two scc that way infact any charger that way they need their own sets of panels. Walde I think error 09 is a software problem because its a Chinese copy of the inverter and you may need to load new software I seem to remember some one has done this search the...
by paulvk
Wed, 12 Jun 2019, 20:26
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 351
Views: 5218

Re: PIP-4048MS and PIP-5048MS inverters

I always wondered about automotive relays at 50v or more I am running at less than max amps on my pips might have been good choice I like the Esmart3 MPPT chargers they have a 60amp unit but its cheaper to buy two 40amp units and get 80amps they are also more efficient than the pip one they also rec...
by paulvk
Thu, 25 Apr 2019, 18:18
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

I run a 24 port 10/100 switch , my VOIP ATA , wifi access point , security light and a micro-controller tcpip remote control off 48v via dc/dc converters the total drain is less than 2 amps Note the access point has POE so it is powered by its own converter. Switching and fusing 48v is not difficult...
by paulvk
Wed, 27 Mar 2019, 15:38
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

It is an android unit and I rotated on paint as you did but it still comes out upside down
I even turned the tablet upside down and tried again!
by paulvk
Tue, 26 Mar 2019, 18:39
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

For heating water there are 48v elements available to replace the ones in hot water tanks a dual element tank would be ideal one for the grid (top one) the other dc solar (bottom one) Here is a view of the wireless meter now operating on my system and its 40 meters through various walls Note I fitte...
by paulvk
Wed, 13 Feb 2019, 13:51
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2423
Views: 454028

Re: PIP-4048MS and PIP-5048MS inverters

weber wrote:
Tue, 12 Feb 2019, 13:51

If you happen to have an LFP battery and a coulomb-counting type SoC meter (not the crappy voltage-based one in the PIP/Axpert),
Just installed this one its working well
Image
by paulvk
Fri, 08 Feb 2019, 07:13
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 351
Views: 5218

Re: PIP inverter repairs and hardware modifications

Have you consider water cooling? :D I have no problem with overheating because I have 3 PIPs (12kVA total) and only 5.3kVA PV installed so they do not work in full power mode. :) I have two PIPs in parallel so 8kVa and only get to 50% load I designed the system to run at no more than 50% normally 2...