2S Dark Horse 27 set up help

[bob horowitz]

I have a Dark Horse 27 that I bought from Darin Jordan. I have it set up with a Neu 1515 .5Y 4400Kv motor. It has a 3 blade 534 prop, with a Swordfish 220 amp pro esc and 2 Revo 420 Blend GO 5000mah 2S batteries in parallel. Other than the ESC, I believe it's the same set up that Dain ran. I seem to recall that I tried it with the LVC at 3.2volts, and when that didn't work I tried it at 0, and that didn't work either. I don't remember where I had the timing set, it was last summer and I have CRS. I haven't had any luck with my ESC set up. The motor will run for a few seconds and then quit. That's on the bench, with no load, so I haven't even put it in the water. I have the SW program box and I wondering if someone can give me some programing advice, particularly timing and LVC settings,I think I had the other settings correct. I understand that with this set up it's a real high amp draw, and I'll only get about 2 minutes run time. Any help would be greatly appreciated.
Thanks,
Bob

[jim82]

Do you have the esc set for 2s?

[bob horowitz]

Hi Jim,
Thanks for your response. Yes, pretty sure I do. I've got a couple of batteries charging to try tomorrow. I'll hook up the program box up in the morning and go through all the settings just to be sure. Can you tell me what the timing should be set at? I was thinking that the voltage drop because of the relatively high amp load is causing the LVC to kick in and cut the power altogether. Batteries are brand new so I hope not. Any thoughts? Any solutions you can think of? I'm kind of new at this so any suggestions would really help.
Bob

[jim82]

Sounds like cell count is off other parameters should not matter making it cutoff just bench testing.

[bob horowitz]

Jim,
I'll check in the morning. I also answered my question about timing by doing a search on the forum. In another thread you stated that for a wye wound motor the timing should be between 10-15 degrees, is that correct? I sure hope you're correct about cell count. I know I was very frustrated when I tried to get it running. I may have overlooked the count.
Bob

[bob horowitz]

By the way, I really thank you for your quick response.
Bob

[jim82]

Np. I will say I am not a big swordfish fan...Lol I know they have auto cell count but it maybe thrown off ( due to great cells if reading any higher) best if what you are using to just make it default.

[MarkF]

On that hot of a motor I would use 0 deg. timing. 10 to 15 deg will burn stuff up quick if your not careful.

Mark

[bob horowitz]

Mark,
Even with it being a wye wind, set the timing at 0?
Bob

[Fluid]

I'll have to disagree with Mark, 0* will cause overheating. With a Wye wind motor the higher the amp draw the higher the timing needs to be. My N-2 Sport Hydro (another Dark Horse) runs a 4500 Kv Wye motor and I run 15 degrees without issues.


.

[MarkF]

Yea you ran a hydro and I ran a mono with the same motor. I ran 0 timing so motor didn't get as hot. Even Steve Neu recommends 0 timing to gain efficiency and less heat. 0 timing should never get you more heat. A hydro can run a lot more loose than a mono. You don't have to take my advice.

Mark

[bob horowitz]

Guys,
With the SW program box it's a moot point. The box only gives you three ranges. The low setting is 0-15 degrees. That being said, I charged some batteries this morning, hooked up the box with the esc and checked the programming. Everything seems okay. 2s battery,low(0-15) on the timing, 3 volts on the cutoff for now and the default on the frequency. I'm still having problems. I rebound my RX and TX. That seems fine. Rudder response is fine. Tried calibrating the TX and ESC and still have problems. The first time I tried I pulled the throttle, it reved up and quit, did that a couple of times same results. Then I just floored the throttle and it kept running and it seemed okay, except when I let off, it started beeping various sequences and wouldn't run again. I really think I'm doing something wrong when I try to link(calibrate) the ESC with the RX. Any, at that point I got frustrated and went and made break

[bob horowitz]

Having trouble putting all my thoughts down before software on this website times out. I appreciate all you guys helping me out. With all the expertise I'm sure we can figure this out.
Bob

[fweasel]

Do you have another ESC you can test with? I've never used a swordfish ESC before, but it seems like I read about lots of issues with them.

[bob horowitz]

I have another new SW 220 amp just like this one. Other than that, the next biggest one is only 120 amps. All my other esc's are smaller and I get them to work fine. I don't think I want to chance using one of my smaller ones on this setup. I suppose I can put bullets on the other SW 220 that is just like the one I've been trying to get working. They were bought at different times, so maybe they are from different lots. My pond is still frozen so it doesn't matter if it's not waterproofed yet. I'll give a try a little later on if no one has any other suggestions. I live in the boonies of Montana and I have to go into to town a little later on, so it will have to be later this afternoon.
Thanks to all,
Bob