Go to advanced search

by kiev
Thu Aug 16, 2018 5:42 pm
Forum: General Technical Discussions
Topic: Charging i-Miev troubles
Replies: 5
Views: 49

Re: Charging i-Miev troubles

4 six volt golf cart hooked up series/ parellel delivering at least 800 watts. Inverter does have ground lug presently not hooked up. This power unit is mobile (on small rubber tired wagon). I will try the ground concern. ( Copper pipe driven into the earth?) As to the grounding circuit of the inve...
by kiev
Thu Aug 16, 2018 5:20 am
Forum: General Technical Discussions
Topic: Charging i-Miev troubles
Replies: 5
Views: 49

Re: Charging i-Miev troubles

What is the power source for the 12VDC input to the sine wave inverter? Can it provide 200 Amps continuously at 12VDC? Is there a safety-return(aka earth) -ground pin in the output outlet of the sine wave inverter? Does the Neutral leg of the sine wave output connect back to this ground? The EVSE un...
by kiev
Sun Aug 12, 2018 4:47 pm
Forum: General / Main Owners Forum
Topic: help locating a used on board charger
Replies: 16
Views: 418

Re: Quick help with charger replacement please

This is the high voltage cable from the charger to the MCU . Is this silver sheathing important? It doesn't exist on the 2012 It is likely for abrasion and cut resistance, although it might provide a minimal amount of EMI noise filtering, but the spacing of the webbing is too coarse for any real EM...
by kiev
Sun Aug 12, 2018 6:32 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger, DC-DC Converter
Replies: 109
Views: 3423

Perseverance Pays Off in Successful Repair!

Way to go Larry, great job on getting it fixed--and thanks for the offer for additional diagnostic testing.

And now we have some clues of where to look when the snubber caps are blown, such as in Jay's charger.

i think the burnt by-pass resistors such as in 1pk's case will be a different culprit.
by kiev
Sat Aug 11, 2018 5:30 pm
Forum: Batteries and Battery Management
Topic: Help please. I have parasites
Replies: 4
Views: 111

Re: Help please. I have parasites

When you plug in to charge and let it charge until the charger cuts off--does the "fuel" gauge read the full 16 bars? What is the Range Remaining gauge reading after a full charge? How far is your commute and what does the fuel gauge read after one way and after the round trip? Use the tri...
by kiev
Sat Aug 11, 2018 9:40 am
Forum: Batteries and Battery Management
Topic: Firmware for charger, BMU, CMUs
Replies: 1
Views: 65

Re: Firmware for charger, BMU, CMUs

Here is a quick shot of the 2012 BMU board.

There are several empty thru-hole connector slots, possibly for JTAG and eeprom? programming

IC1 is Mitsubishi MH8106F 115A105 U0, 144-pins

IC2 is 20-pin 2338A1 SKA [TRIANGLE MARK] 1917 1917C00MDA

Image
by kiev
Fri Aug 10, 2018 9:04 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger, DC-DC Converter
Replies: 109
Views: 3423

Metal Current Sense Resistors

The R232 metal current sense resistor size is about 2512. i think it is made by Vishay, where "L" indicates mOhm, and is rated about 3W, e.g. WSLP

ref: http://www.vishay.com/docs/30327/marking.pdf
by kiev
Fri Aug 10, 2018 7:43 pm
Forum: General / Main Owners Forum
Topic: help locating a used on board charger
Replies: 16
Views: 418

Re: help locating a used on board charger

Those thick orange wires are the output high voltage of the charger. They run over to the positive and negative terminals of the battery pack located beneath the small access panel in the Motor Control Unit, MCU. There is a connector between the two boxes to make it easy to install and disconnect, e...
by kiev
Fri Aug 10, 2018 7:26 pm
Forum: General / Main Owners Forum
Topic: And now my I will not charge!!
Replies: 34
Views: 1446

Re: And now my I will not charge!!

Were those circled diodes damaged?

Was the white solder pad strip already scorched, or did that happen during the de-soldering?
by kiev
Fri Aug 10, 2018 2:12 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger, DC-DC Converter
Replies: 109
Views: 3423

Re: Troubleshooting and repair for On-board Charger, DC-DC Converter

That is 8milli Ohms, 0.008 Ohms. It is probably a metal resistor and not damaged at all, but the circuit board in its vicinity looks to have gotten hot and discolored.

Go to advanced search