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by coulomb
Thu, 30 Apr 2020, 22:07
Forum: Mitsubishi
Topic: iMiEV charging, J1772 testing
Replies: 41
Views: 762

Re: iMiEV charging, J1772 testing

2) Activating the trigger on the gun increases the resistance between earth and PP from 150 to 480 Ohms and this signal shuts off the charging, what would happen if an other resistor ( a pot?) would increase it to something in between? Could that be used to ramp down the charger or would it blow it...
by coulomb
Thu, 30 Apr 2020, 08:32
Forum: Batteries, charging, management and monitoring
Topic: BMS requirements for energy storage.
Replies: 5
Views: 234

Re: BMS requirements for energy storage.

My question is what does the BMS need to do other than balancing the batteries? It's like a breaker in your house switchboard: if all goes well, it should do nothing. But apart from balancing, it should check for over- and under-voltage on all cells, over-temperature, and it should prevent charging...
by coulomb
Thu, 30 Apr 2020, 08:09
Forum: EV Motoring
Topic: New 500kW Chademo
Replies: 4
Views: 235

Re: New 500kW Chademo

brendon_m wrote:
Thu, 30 Apr 2020, 06:51
For when you need to charge your imiev in 2min flat :D
Nah. It's limited to "only" 600 A (so to get 500 kW you need an 833 V battery). So it will take ~5 minutes!

Assuming of course that your iMiEV was beefed up a bit so it could take 12C.
by coulomb
Tue, 28 Apr 2020, 13:18
Forum: Mitsubishi
Topic: iMiEV charging, J1772 testing
Replies: 41
Views: 762

Re: iMiEV charging, J1772 testing

But before I would do that (I doubt I will) I would build a relay into (onto) the gun to simulate pressing the trigger. A robo EVSE plug! Maybe you should go the whole hog and adapt a Tesla snake "charger" (actually it's just the cord part of an EVSE). Just don't bend over when that thing is active...
by coulomb
Tue, 28 Apr 2020, 09:22
Forum: Mitsubishi
Topic: iMiEV charging, J1772 testing
Replies: 41
Views: 762

Re: iMiEV charging, J1772 testing

It is possible that killing the charging without letting the machine know is bad ( pressing the trigger on the gun,changing the resistance between earth and PP pins from 150 to 480 Ohms is supposedly ending charging more gently,though checking it with a clamp meter the drop in amperes is immediate ...
by coulomb
Tue, 28 Apr 2020, 08:55
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 469
Views: 41560

Re: Replacing comms board with an isolated USB to TTL device

Hi, is the first time that a write here, Welcome to the forum. I moved your post here, since it's a hardware modification question. but i read all the forum. Wow. I think we need a medal for people that achieve that :) On my optisolar 5k serial communication is blow. I'm thinking to substitute whit...
by coulomb
Mon, 27 Apr 2020, 11:08
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 239
Views: 28152

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

gazzaman2k wrote:
Mon, 27 Apr 2020, 03:12
one thing i have noticed is that going from 71-71 to 71-80 it now takes more starter voltage to get the solar working....
Interesting. I've not found any differences (so far) in the way that PV is handled.
by coulomb
Mon, 27 Apr 2020, 09:09
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 239
Views: 28152

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

gazzaman2k wrote:
Mon, 27 Apr 2020, 03:12
is there any changelog of what the differences are in the firmwares?
Alas no, it seems that would be too professional for them. I mention a new feature I found in it, though it might not be finsished yet, in this post on the Power Forum. Details of the new BMS command are on the next page.
by coulomb
Mon, 27 Apr 2020, 08:05
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 469
Views: 41560

Re: PIP inverter repairs and hardware modifications

It seems that the fan speed control output from the control board is on pin 40 (FAN SPEED/). That's ninth from one end (48 pins total, 3 groups of 16). Depending on where the control circuit (if any) is located, it might be easier to start from there. [ Edit: the problem could even be the digital bu...
by coulomb
Sat, 25 Apr 2020, 12:37
Forum: Renewable Energy and Storage (Non-EV)
Topic: Voltronic InfiniSolar Inverters
Replies: 25
Views: 8281

Re: Voltronic InfiniSolar Inverters

Is there some command to control SCC to export only the power you want to grid ?? I'm pretty sure that there would be. But those commands aren't in my comms protocol manuals. I can't even find these commands in any Infini firmwares that I've collected. The exception is PDI in an Infini V 3 kVA, but...
by coulomb
Sat, 25 Apr 2020, 06:46
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 274
Views: 27615

Re: PIP-5048MK inverter

If one install the patched firmware, when you have a patched version of a higher firmware, can one do upgrade to the new patched firmware from the old one. Yes. The part of the firmware that does the actual flash programming of the rest of the firmware is called the bootloader, and it never changes...
by coulomb
Fri, 24 Apr 2020, 10:24
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 274
Views: 27615

Re: PIP-5048MK inverter

Please explain what you disagree about the pylontech recommendations and why. Firstly, the voltages are far too high for battery longevity. 53.2 V / 15 cells = 3.55 VPC, not much room from the absolute maximum of 3.6 VPC (some manufacturers use 3.65 VPC). For solar energy storage, there is simply n...
by coulomb
Fri, 24 Apr 2020, 08:31
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 274
Views: 27615

Re: PIP-5048MK inverter

In PYL mode, does one still experience premature float bug. The Pylontech recommendations (which I disagree with, but that's another story) are to set the float and bulk/absorb settings to the same voltage. If you follow that recommendation, the premature float bugs have no effect. Edit: more to th...
by coulomb
Wed, 22 Apr 2020, 19:15
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 469
Views: 41560

Re: PIP inverter repairs and hardware modifications

Hello guys, Welcome to the forum. Here is my repair plan: 1. Replace all 16 MOSFETs with some replacements. Basing on your experience, what you suggest? I really don't know the 24 V models well. I'd say you could replace them with the same part, or any with similar specifications. At 24 V, as long ...
by coulomb
Tue, 21 Apr 2020, 22:12
Forum: Members Machines
Topic: Francisco's Electric Pajero
Replies: 145
Views: 17909

Re: Francisco's Electric Pajero

It turns out there is nothing wrong and there is an unavoidable reason for the behavior. Points for anyone who can explain it. OK, I'll have a go. I'll consider the case where the output current is positive (conventional current is flowing away from the IGBT pair towards the motor). At this point, ...
by coulomb
Tue, 21 Apr 2020, 20:33
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 239
Views: 28152

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

Lightly patched firmware version 71.80a for 5 kW PIP-5048MG, Axpert MKS II 5K-48 etc. This is a beta version of the patched firmware version 71.80a, based on factory firmware version 71.80 for PIP-5048MG, Axpert MKS II 5K-48, and equivalents. It is not to be confused with factory firmware version 7...
by coulomb
Tue, 21 Apr 2020, 19:31
Forum: Mitsubishi
Topic: Aftermarket iMiEV battery upgrade project
Replies: 272
Views: 31100

Re: Aftermarket iMiEV battery upgrade project

Looks like a great fit. But I worry about thin insulation rubbing away with vibration and causing shorts to the metalwork. Assuming that the outer frame is painted metal.
[ Edit: seems it's plastic. ]
by coulomb
Tue, 21 Apr 2020, 19:01
Forum: Renewable Energy and Storage (Non-EV)
Topic: EaSun, 3kW, 24V, 500v dc PV (PIP 3024 GK), short input 230 v AC
Replies: 7
Views: 393

Re: EaSun, 3kW, 24V, 500v dc PV (PIP 3024 GK), short input 230 v AC

If I think correctly, the transistors should be controlled symmetrically. Certainly the upper and lower gate drives should have about the same amplitude, with respect to their emitters . You may have a lot more trouble measuring the upper transistors' gate drive than the lower pair. Though keep in ...
by coulomb
Tue, 21 Apr 2020, 18:52
Forum: Renewable Energy and Storage (Non-EV)
Topic: EaSun, 3kW, 24V, 500v dc PV (PIP 3024 GK), short input 230 v AC
Replies: 7
Views: 393

Re: EaSun, 3kW, 24V, 500v dc PV (PIP 3024 GK), short input 230 v AC

Compared to the other transistors working in the bridge, this one is definitely different from the others. Has a lower value. I think you may be overlooking the fact that the upper transistors in a full bridge have the bridge output on their emitters. The 400 V p-p signals are way too much for gate...
by coulomb
Mon, 20 Apr 2020, 14:54
Forum: Renewable Energy and Storage (Non-EV)
Topic: JFY JSI-2000 inverter failures
Replies: 1
Views: 136

Re: JFY JSI-2000 inverter failures

I hope that's an earth leakage detector near the top right of your photo. Otherwise, I'm not seeing how that sensor makes any sense, if you see my sense.
by coulomb
Mon, 20 Apr 2020, 14:48
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2652
Views: 579078

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

Thanks. But what about the statement that there has to be a difference of at least 1,5V to setting 12 in this topic ? Ah. That's only for non-LFP flavoured patched firmware, or non-patched firmware. You're running (I assume) LFP flavoured patched firmware, so that doesn't apply. It's a bit of a lon...
by coulomb
Mon, 20 Apr 2020, 09:12
Forum: Renewable Energy and Storage (Non-EV)
Topic: EaSun, 3kW, 24V, 500v dc PV (PIP 3024 GK), short input 230 v AC
Replies: 7
Views: 393

Re: EaSun, 3kW, 24V, 500v dc PV (PIP 3024 GK), short input 230 v AC

The transformer working with IGBT transistors heats up about 70 degrees censorship. Is it possible that this is a normal working temperature? The heat sink of the IGBTs is only a little warm. The device you highlighted in red isn't a transformer, it's an inductor, on the output of the inverter prop...
by coulomb
Mon, 20 Apr 2020, 08:12
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 239
Views: 28152

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

I have EASUN - Isolar SM II 5KW 48VDC with 450VDC MPPT and there error 90 occured. There no information about error 90 at manuals. Can anybody help me? That's not supposed to happen with genuine (non-clone) models. Yet it seems to happen occasionally. There is an easy way to check that an error 90 ...
by coulomb
Mon, 20 Apr 2020, 07:53
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2652
Views: 579078

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

What does this PF1 really mean? It's more or less a marketing term. It's the ratio of maximum real power to maximum apparent power. Equivalently, it's the minimum power factor for the load that will maximise real power from the inverter. Consider 5 kVA models. A PF0.8 model has a maximum real outpu...
by coulomb
Sun, 19 Apr 2020, 18:35
Forum: Renewable Energy and Storage (Non-EV)
Topic: jonescg's home battery storage system
Replies: 86
Views: 7629

Re: jonescg's home battery storage system

jonescg wrote:
Sun, 19 Apr 2020, 17:19
the battery will be installed in front of the old chimney stack.
Um, do you still use the fireplace at all? Heat from the fire is bad for the inverter and especially the battery.