TomC Veteran Location: Gold Coast, Queensland, Australia
| G'day mates,
I follow these MP XL E threads a bit just because I'm sure I will get one eventually. That is, if Jan actually ever produces enough of them, including spares. These have to be the sexiest looking 90 sized E-heli's on the planet!
Of course if I get one it will have to run it on 15s (3x5s1p Evo25 3700's, think they will fit ok), like one of my current Ion-x's. Heh, if you have a 15s PowerJazz esc, why not use it? I'd probably use an Actro 32-4 max motor.
Anyway, the main purpose of this post is to point out that the PowerJazz instuction manual clearly states that you should not use any in-line monitoring systems. They recommend that if you want to monitor amps, you should use a clamp-on device. I'm pretty sure that they (Kontroniks) are worried that the in-line feedback signals may actually erase/modify esc settings.
One of my very good 3D flying mates with a 10s e-Razor and tango 45-08/Jazz 55-10-32 esc recently was getting a few in-flight shutdowns. He mangaged to auto a few in ok, with little damage, but got a lot of damage on a couple of these shutdowns. He removed the Eagletree system a few weeks ago and has not had any problems since.
I was waiting to get one of the new Eagletree 70v systems for my 15s set-up when it comes out next month (mid Nov) but now I'm not too sure what to do.
Prior to this, I have just been using an on-board wattsup meter for occasional tests (with non-kontronik escs, I might add) but these units are only good to 50v (barely 12s rated)so I have not been able to use it on my 15s (63v) set-up anyway.
It seems to me I could use the current Eagletree with a separate battery power supply and use their clamp-on high amp add-on and optical rpm add-on. I would not be able to measure volts and mahr usage, but at least I could monitor amps and rpm which should give me a good idea of watt's going on. My charger is telling me what I put back into the packs anyway.
Any suggestions or alternatives? Thanks.
Cheers, Tom C
CX2 2s Logo10- 3D 5s Trex600 10s 2x Ion-x, 1x15s DS, 1x15s SS |