Search found 4305 matches

by coulomb
Yesterday, 20:29
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 425
Views: 49815

Re: Aftermarket iMiEV battery upgrade project

Ok, after a long delay I can now report that the 60 Ah cells that originally were in Perth are finally installed in my iMiEV in Melbourne. Well done. Is maybe the connection from the cells to the board poor? Could I despite the double and triple checking of the connections have missed this one? Yes...
by coulomb
Yesterday, 11:12
Forum: Mitsubishi
Topic: Perth Imiev for sale- anyone know the history?
Replies: 11
Views: 129

Re: Perth Imiev for sale- anyone know the history?

done a lot of kms so clearly well loved, I was wondering if it used to belong to anyone here who could shed some light on it? Or anyone who knew the owner? With that odometer reading, I'd say it's the one Joseph Law drove for a long time (handle g4qber ). [ Edit: it was not; see below. ] See for ex...
by coulomb
Wed, 02 Dec 2020, 18:55
Forum: Electric motors and controllers
Topic: DC Motors - Shunt?
Replies: 17
Views: 189

Re: DC Motors - Shunt?

I understand that regen current is not developed for series DC motors, but the discussion above suggests that it would be for shunt DC motors? Sorry, I was thinking separately excited DC motors for regeneration. I've just realised how rusty I am on motors, so I'll butt out of this discussion, excep...
by coulomb
Mon, 30 Nov 2020, 18:22
Forum: Hyundai
Topic: CCS1 to CCS2 adaptor for KONA
Replies: 18
Views: 201

Re: CCS1 to CCS2 adaptor for KONA

pts260 wrote: Mon, 30 Nov 2020, 18:02 I got this bad boy delivered for under 300Aud
And... does it work? What ev? Which charger(s)?
by coulomb
Mon, 30 Nov 2020, 11:49
Forum: Hyundai
Topic: CCS1 to CCS2 adaptor for KONA
Replies: 18
Views: 201

Re: CCS1 to CCS2 adaptor for KONA

I do see a 4.1K resistor between TYPE 1 CS and TYPE 2 PP, Are you sure it's not like this? Measuring from PE to PP should clinch it. Presumed CCS1 to CCS2 adapter.png If they really did put a 4.1 kΩ resistor in there, they possibly measured it wrong, and it might be possible to fix it somehow. [ Ed...
by coulomb
Mon, 30 Nov 2020, 07:47
Forum: Hyundai
Topic: CCS1 to CCS2 adaptor for KONA
Replies: 18
Views: 201

Re: CCS1 to CCS2 adaptor for KONA

I found the below in " Design Guide for Combined Charging System ": CCS2 PP resistor.png It looks like the resistor is still required, even though digital communication is required, so the current capability of the cable may be communicated digitally. Besides, with DC charging, the charger is extern...
by coulomb
Mon, 30 Nov 2020, 06:45
Forum: Hyundai
Topic: CCS1 to CCS2 adaptor for KONA
Replies: 18
Views: 201

Re: CCS1 to CCS2 adaptor for KONA

Would someone be able to tell me if These communication pins are suppose to connect CCS1 CS to CCS2 PP, or do these pins have different functions and are not suppose to be connected together? They have different functions. On AC cables (type 2 to type 2 or type 2 to type 1), you find a medium resis...
by coulomb
Sun, 29 Nov 2020, 07:41
Forum: Electric motors and controllers
Topic: DC Motors - Shunt?
Replies: 17
Views: 189

Re: DC Motors - Shunt?

The DC motors that I've worked with for EV conversions were provided with the connections so that you can wire them in series or shunt. My understanding is that shunt fields are very different to series fields; shunt are designed for high voltage, low current (so many turns of fairly fine wire), wh...
by coulomb
Sun, 29 Nov 2020, 06:59
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 413
Views: 49414

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

I'm fairly sure that when my batteries trip and the inverters can't see a battery connected anymore that the inverters change the chemistry setting to default (AGM). Huh. Good to know, thanks. I wonder if the processor and RAM lose power briefly, and the whole firmware restarts. But I would not exp...
by coulomb
Sun, 29 Nov 2020, 05:58
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 413
Views: 49414

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

Lately ive changed my battery bank and change some settings. The inverter would no take any new setting. Have you perhaps changed to a lithium battery with a built-in BMS? And with a special cable to the BMS? If that's the case, the BMS takes over some settings, and it's normal for the settings to ...
by coulomb
Fri, 27 Nov 2020, 11:47
Forum: Renewable Energy and Storage (Non-EV)
Topic: MKS-II-5KWB Repair Please help
Replies: 21
Views: 194

Re: MKS-II-5KWB Repair Please help

I just had a look at the picture. I would be 99% certain they are MOVs. Though the designators strongly suggest capacitors: MKS II blown caps or MOVs.jpg There are capacitor of about that size in iMiEV on-board chargers that explode. But capacitor or MOV, it suggests a large voltage surge, and I no...
by coulomb
Thu, 26 Nov 2020, 20:19
Forum: Hyundai
Topic: Hyundai Maps Self updater
Replies: 11
Views: 262

Re: Hyundai Maps Self updater

Hyundai have finally released the Australian site to allow owners to update the map software themselves I'm intrigued. The installation instructions stop with something downloaded to your PC, and a link on the desktop. How does it continue from there? I suppose you connect a cable between your PC a...
by coulomb
Thu, 26 Nov 2020, 19:56
Forum: Renewable Energy and Storage (Non-EV)
Topic: MKS-II-5KWB Repair Please help
Replies: 21
Views: 194

Re: MKS-II-5KWB Repair Please help

This is a copy of the email from MPP Solar confirming the inverters are clones Interesting. But MPPSolar aren't the manufacturers; they presumably don't have access to the list of other resellers to pronounce whether they are clones or not. They seemed more interested in selling you new inverters. ...
by coulomb
Thu, 26 Nov 2020, 19:44
Forum: Renewable Energy and Storage (Non-EV)
Topic: MPP SOLAR PIP-8048MAX
Replies: 10
Views: 376

Re: MPP SOLAR PIP-8048MAX

Can you explain to me what this float bug is? When charging the battery from an intermittent source (e.g. solar on a cloudy day), it misinterprets low charge current as the battery being full. The battery is actually full when two conditions are satisfied: the charge current is low, and the battery...
by coulomb
Thu, 26 Nov 2020, 08:32
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 398
Views: 47718

Re: PIP-5048MK inverter

Do you know if they added the ability to never load from Utility I don't have a King inverter myself, but I believe that the bug where commands to prevent utility charging were ignored has been fixed. And if it is possible to limit the current even in low battery? This would be very useful to impro...
by coulomb
Wed, 25 Nov 2020, 16:50
Forum: Renewable Energy and Storage (Non-EV)
Topic: MKS-II-5KWB Repair Please help
Replies: 21
Views: 194

Re: MKS-II-5KWB Repair Please help

No it appears to be a typical mains power circuit configuration the two pin connector is its supply and the 4 pin is its output. From what I can see it does not connect to the PV. Ah! Brilliant! It could well be what's called the AC SPS. It seems to push a small amount of power into the DC bus, per...
by coulomb
Wed, 25 Nov 2020, 14:51
Forum: Renewable Energy and Storage (Non-EV)
Topic: MKS-II-5KWB Repair Please help
Replies: 21
Views: 194

Re: MKS-II-5KWB Repair Please help

The circuit with the blown capacitor and NTC thermistor appears to be a small power supply not related to the solar charger UIU believe it's a small DC-DC to power the electronics of the SCC. there is a bridge rectifier after the input from the common mode filter and thermistor. I'm mystified by wh...
by coulomb
Wed, 25 Nov 2020, 14:43
Forum: Charging Infrastructure
Topic: IEC plug > charger connector?
Replies: 5
Views: 152

Re: IEC plug > charger connector?

assume my 10a charger itself takes care of Stepping Down the current? Not quite. The EVSE signals the charger (which is in the vehicle) to limit the charge current to 10 A or whatever it is set to. It does this by setting the pulse width of a 1 kHz pilot signal. An EVSE doesn't process the mains po...
by coulomb
Wed, 25 Nov 2020, 09:34
Forum: Renewable Energy and Storage (Non-EV)
Topic: MKS-II-5KWB Repair Please help
Replies: 21
Views: 194

Re: MKS-II-5KWB Repair Please help

Hi Coulomb, I appreciate the quick reply. I must admit I do not know who the original / genuine manufacturers of these inverters are? All the genuine Axperts, PIPs, etc are designed by Voltronic Power in Taiwan, and manufactured in mainland China by Voltronic Power. But they don't supply any of the...
by coulomb
Tue, 24 Nov 2020, 21:07
Forum: Renewable Energy and Storage (Non-EV)
Topic: MKS-II-5KWB Repair Please help
Replies: 21
Views: 194

Re: MKS-II-5KWB Repair Please help

I mean to add that unlike the 145 V max SCC models which connect only to the battery, the 450/500 V max SCC models connect to the internal 400-500 V bus. The fact that the MOSFETs have failed is a bad sign; it means that the fault travelled through the isolating high frequency transformer to the bat...
by coulomb
Tue, 24 Nov 2020, 20:56
Forum: Renewable Energy and Storage (Non-EV)
Topic: MKS-II-5KWB Repair Please help
Replies: 21
Views: 194

Re: MKS-II-5KWB Repair Please help

Hello Forum, Welcome to the forum. We imported 25x 360w panels, 32x 280Ah LiFePo4 cells for 16S2P 48V 560Ah, 3x MKS-II-5KWB for 3 Phase operation, and we have a 3 Phase 30KVA generator. First warning sign: I've never heard of an Axpert MKS-II-5K WB . That certainly doesn't mean that they don't exis...
by coulomb
Mon, 23 Nov 2020, 20:36
Forum: General EV Discussion
Topic: Life Cost of EVs and the government take...
Replies: 28
Views: 473

Re: Life Cost of EVs and the government take...

jonescg wrote: Mon, 23 Nov 2020, 20:24 I'll add the RUC...
Ah! As in that soon-to-be-familar phrase Road User Charging?
by coulomb
Sun, 22 Nov 2020, 09:33
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 398
Views: 47718

Re: PIP-5048MK inverter

coulomb wrote: Sun, 22 Nov 2020, 08:44 If not in 3Px output mode, that's an interesting question. I highly doubt it.
In fact, all CAN bus (parallel) commands and events are ignored if in single machine mode (output mode = SNG). So it can't possibly synchronise over the CAN bus when not in SNG mode, it seems to me.
by coulomb
Sun, 22 Nov 2020, 08:44
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 398
Views: 47718

Re: PIP-5048MK inverter

Hmmmm..... From what you are saying here, even though the units are essentially an inverter, they actually adjust themselves to match phasing of what they see on their own active grid supply if it is connected. Have I got that right? Yes, that's right. If the parallel cards are fitted, and one of t...
by coulomb
Sun, 22 Nov 2020, 08:37
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 541
Views: 72783

Re: PIP inverter repairs and hardware modifications

Is there more to the pwm circuit that I'm not seeing apart from the signal to the optocouplers? Yes, below the bottom of the photo, all the way to TX7 and also D1, D40, D19. These are the power supplies for the drivers. With the inverter running, I believe you should be able to see the +18 V and -5...