Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
- Electricboats
- Messages
Search
|
One more EV on the water today!
Just a note to thank everyone for their help and suggestions, and to report that I motored out of the marina under electric power for the first time this evening.
There is a lot of little work to do still to make it really usable (anyone care to share how they housed/mounted their Curtis throttles?), but its basically functional. I will do some preliminary trials tomorrow and share some photos and things I have learned. In the meantime, I am grateful for the opportunity to keep learning and now also start sharing. |
|
Re: What spares do you keep on hand?
Ryan, I think your list is reasonable. After I found myself adrift with no electrical power at all, not the motor, nor the lights or radio, as night fell, I got a full set of spare fuses. It didn't prompt me to put a 12v battery downstream of my DC/DC converter, which would have kept the lights and radio working when the propulsion system failed. I do have some spare electrical fittings on board, but haven't evaluated it as a backup kit. My boat sails well in a range of wind conditions and I sail in a limited area so that amount of backup suffices for my level of risk tolerance.
Myles' list looks much more comprehensive, like one that conservative offshore sailors would have, the type of people who could rebuild their diesel, and replace standing rigging while offshore or in some remote anchorage. I suspect many people won't want to spend that much, but they should strongly consider if they are going places where they have no access to spares and repairs, but I think many of us boat in areas with access to those things, so we just need to make it to safe harbor.?? |
|
Re: SOLVED - How to reset a fault with the sevcon GEN 4 controller?
开云体育Ok, so score one for reading the manual and double checking everything. ?? I think my adventure with the charger was a red herring. Looking at the cables carefully, the cable from the battery to the contactor had succumbed to its twist, and the ring terminal slipped out of the boot and around until it touched the pole of the key switch. ?The Sevcon was doing it’s job and alerting me to the problem! Re-running the cable to have the twist pull the other direction and tightening the nut/boot cleared everything up.? Thank you for the suggestions!? On Aug 23, 2020, at 23:39, Ryan Sweet <ryan@...> wrote:
|
|
Re: What spares do you keep on hand?
Brush motor configs:
toggle quoted message
Show quoted text
Spare brush set. Spare controller. Outboard configs: Spare prop. Spare shear pins, cotter pins, nut. Gear lube Rear seal -----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Ryan Sweet Sent: Monday, August 24, 2020 8:06 AM To: [email protected] Subject: [electricboats] What spares do you keep on hand? While I try to isolate the cause of my failure (see other thread), I’m trying to think through what else could go wrong. What spares do you keep on board for an Electric drive system? - belts - fuses - wire/battery cables, ring terminals - supplementary/backup power source What else? |
|
What spares do you keep on hand?
While I try to isolate the cause of my failure (see other thread), I’m trying to think through what else could go wrong.
What spares do you keep on board for an Electric drive system? - belts - fuses - wire/battery cables, ring terminals - supplementary/backup power source What else? |
|
Re: How to reset a fault with the sevcon GEN 4 controller?
开云体育Sorry, my bad. ?I think that was the charge controller I was thinking about. ?And it was the charge controller that gave me a blinking light. ?I don’t recall the second having a light.On Aug 24, 2020, at 3:50 AM, Larry Brown via groups.io <elcapitanbrown@...> wrote:
|
|
Re: How to reset a fault with the sevcon GEN 4 controller?
开云体育Do you have the usb to serial cable to connect to the console with a laptop? ?There is a ton of information available on that console and it may be displaying the issue.?On Aug 24, 2020, at 2:39 AM, Ryan Sweet <ryan@...> wrote:
|
|
Re: How to reset a fault with the sevcon GEN 4 controller?
开云体育Thank you. ? It’s AGM, they were all balanced and evenly charged on the bench before being moved to the boat.? I haven’t tried with the charger again since disconnecting it (trying to return back to the state it was in when it worked). ?At power-up it starts the six blink fault indication on the green LED.? On Aug 23, 2020, at 23:05, Carsten via groups.io <Carstensemail@...> wrote:
|
|
Re: How to reset a fault with the sevcon GEN 4 controller?
Hi Ryan, Are you using LiFePO4 then the voltage of all the batteries MUST be inside 0.1 Volt (eg. 12.84-12.94) before you attemt to connect them into a bank. Did you check ? Is the sevcon fine when you connect the charger, without operating the motor ?
On Monday, 24 August 2020, 08:57:32 GMT+8, Ryan Sweet <ryan@...> wrote:
So I had everything working, and at a certain point I plugged in the charger for the batteries and attempted to spin the motor at the same time. At this point the sevcon resorted to a fault with the LED flash in six times.? From the manual the six flashes seem to indicate over or under voltage on input or output or throttle greater than 20% at start up.? I checked all of the cables again. I tried disconnecting the power and reconnecting with the foot stays. The voltage meter is showing 53.6 V. I have disconnected the charger, Put everything back how it was. The fault is still indicating. Any idea how to reset it? |
|
Re: Engine room tips?
I hope that your project is going well. Take a lot of photos ! If your stainless fasteners are magnetic, don't use them in a boat meant for salt water. Seaworthy 316 is practically non-magnetic, 304 a little magnetic. If you weld or bend non-magnetic stainless steel, it will return its properties a bit to the steel side, and it can become magnetic (and corrode). I suggest NOT to install any magnetic carpets. When the diesel is out and the electric motor is installed, there will be no more oil and grease. And a lot more space (unless you fill up the space with batteries), so it is easy and dirt free to pick up any lost screw or nut. Furthermore, they do not help you, if you drop a stainless steel fastener anyway.
On Monday, 24 August 2020, 04:41:46 GMT+8, sw via groups.io <v1opps@...> wrote:
Some stainless is magnetic On Sunday, August 23, 2020, 13:02, Graham McGlashan <grahammcglashan@...> wrote:
|
|
More basic question about sevcon gen4
开云体育?Does one expect the sevcon gen 4 to clear fault codes without intervention if the fault condition is ameliorated, or is intervention required? With my old Toyota Highlander hybrid it always required intervention if a fault code was triggered. You had to send a reset command via ODBD-2. ?? I am assuming the sevcon is similar. ?I have put everything back the way it was when it was working, and voltage at the throttle (potentiometer - I have the Curtis throttle from the thunderstruck kit) - checks out normal. ?The throttle is in the off position. I don’t know how I would check the output current, without the throttle telling the motor to go, but I’m wanting to believe the fault had something to do with the charger being applied to the circuit as that was what changed. ? If the expectation is that the sevcon gen4 ?will return to normal once the fault condition is no longer true, then my working assumption would have to shift to either the throttle or the contactor being damaged in some way.? It was a bummer because I methodically tracked down and fixed all the vibration and alignment issues until it was humming as silently as could be expected, and was just setting up to wait for the tide to put it back in the water.?I suppose it’s good to be learning about these things before I am somewhere far from home.? This is the section of the manual with fault code 6 (formatting is wonky but it’s (fault|causes|procedure)... — 6 Throttle pressed at power up DI Throttle demand is greater than 20% at power up. Reduce demand 6 Analog input wire-off VS Analog input voltage is outside allowable range. Check analog input wiring Monitoring Doc. #?177/52701 Rev. 3 7-7 LED flashes Fault Level Set conditions Operator action 6 Analog output fault (over/under current, failsafe, short circuit driver) VS Analog output fault caused by over current (>4A), under current if actual current < 50% target (current mode only), failsafe circuit fault, short circuit driver MOSFET. Check analog output wiring. |
|
How to reset a fault with the sevcon GEN 4 controller?
So I had everything working, and at a certain point I plugged in the charger for the batteries and attempted to spin the motor at the same time. At this point the sevcon resorted to a fault with the LED flash in six times. From the manual the six flashes seem to indicate over or under voltage on input or output or throttle greater than 20% at start up. I checked all of the cables again.
I tried disconnecting the power and reconnecting with the foot stays. The voltage meter is showing 53.6 V. I have disconnected the charger, Put everything back how it was. The fault is still indicating. Any idea how to reset it? |
|
Re: Engine room tips?
Think 400 isn’t?
toggle quoted message
Show quoted text
Saved me when had to get a broken screw out of deep hole Sharks like salt water.... On Sunday, August 23, 2020, 14:56, Matthew Geier <matthew@...> wrote:
|
|
Re: Engine room tips?
On 24/8/20 6:41 am, sw via groups.io wrote:
Some stainless is magneticYes, but that type is probably not suitable for marine use - or in use where it MAY get exposed to salt water. When you stick stainless in salt water you rapidly discover there more to stainless steel than just the word. Salt water can rapidly corrode the cheaper grades of stainless steel. A quick check with google says if your stainless steel is magnetic, it's probably 304 grade and is not suitable for use in salt water environments. Another gotcha is don't mix stainless steel fixings with aluminum. The dissimilar metals will start to galvanic corrode the moment it gets an electrolyte on it - i.e. salt water. Nasty stuff salt water, wrecks all sorts of things. |
|
Re: Engine room tips?
Some stainless is magnetic
toggle quoted message
Show quoted text
On Sunday, August 23, 2020, 13:02, Graham McGlashan <grahammcglashan@...> wrote:
|
|
Re: Engine room tips?
toggle quoted message
Show quoted text
On Aug 23, 2020, at 13:02, Graham McGlashan <grahammcglashan@...> wrote:
|
|
Re: Engine room tips?
Wow I did not think of that smart !!! On Sun, Aug 23, 2020, 4:02 PM Graham McGlashan <grahammcglashan@...> wrote:
|
|
Re: Battery recommendation for trolling motor on dinghy
I heard Newport motors from China are good? And some have used model airplane props
On Saturday, August 22, 2020, 01:43:33 PM PDT, Ryan Sweet <ryan@...> wrote:
I apologize, didn’t see this post a month ago, but I had good luck with a generic 86lbs thrust trolling motor (see multiple Chinese brands on amazon) and a plain old interstate lead acid 24v marine battery. Both are light enough to carry to and from the water, and it is super easy to mount and remove. I was even able to use it to push my 30’ sailboat in slack water.? On Jul 21, 2020, at 03:39, Adagio #573 via groups.io <awsmits@...> wrote:
|
|
Re: Battery recommendation for trolling motor on dinghy
开云体育I apologize, didn’t see this post a month ago, but I had good luck with a generic 86lbs thrust trolling motor (see multiple Chinese brands on amazon) and a plain old interstate lead acid 24v marine battery. Both are light enough to carry to and from the water, and it is super easy to mount and remove. I was even able to use it to push my 30’ sailboat in slack water.? On Jul 21, 2020, at 03:39, Adagio #573 via groups.io <awsmits@...> wrote:
|
Matthew Geier
to navigate to use esc to dismiss